KR20250067752A - Cosmetic composition with excellent UV protection effect, including water-in-oil type nanoemulsion composition - Google Patents

Abstract

The present invention relates to a water-in-oil type UV-blocking nanoemulsion cosmetic composition comprising a water-in-oil type nanoemulsion composition and a powder, and the cosmetic composition according to the present invention has an excellent UV-blocking effect. In addition, the present invention provides a water-in-oil type UV-blocking nanoemulsion cosmetic composition having excellent moisturizing power, usability, and skin absorption.

Description

Cosmetic composition with excellent UV protection effect, including water-in-oil type nanoemulsion composition

The present invention relates to a cosmetic composition comprising a water-in-oil type nanoemulsion composition, and more specifically, to a UV-blocking cosmetic composition comprising a water-in-oil type nanoemulsion composition.

Nanoemulsions reduce particle size to improve skin absorption of cosmetic compositions, provide excellent user experience by increasing moisturizing effects and reducing stickiness. Accordingly, conventional nanoemulsion cosmetic compositions have been released mainly as basic products such as toners, ampoules, and creams to which oil-in-water nanoemulsions have been applied.

On the other hand, water-in-oil emulsions have the disadvantage of poor makeup effects such as poor coverage, adhesion, and durability, and are therefore not suitable for makeup compositions such as foundation.

Therefore, there is a need for the development of a UV-blocking cosmetic composition that has the advantages of nanoemulsion with excellent moisturizing power and usability, as well as high coverage, excellent adhesion, and long-lasting properties.

KR 10-2022-0096736 A

In order to solve the problems of the prior art as described above, the present invention aims to provide a water-in-oil type UV-blocking nanoemulsion cosmetic composition comprising a water-in-oil type nanoemulsion composition.

One aspect of the present invention provides a water-in-oil type UV-blocking nanoemulsion cosmetic composition, comprising: a water-in-oil type nanoemulsion composition comprising a surfactant, a skin conditioning agent, and a polyol; and a powder; wherein the powder comprises a UV-blocking agent.

The above UV blocking agent may include at least one selected from the group consisting of titanium dioxide, particulate titanium dioxide, zinc oxide, ethylhexyl methoxycinnamate, octyl salicylate, octocrylene, butyl methoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranilate, 3,4-methylbenzylidene kemperer, bis-ethylhexyloxyphenol methoxyphenyl triazine, phenylbenzimidazole sulfonic acid, isoamyl p-methoxycinnamate, diethylaminohydroxybenzoylhexyl benzoate, and mixtures thereof.

The above-mentioned water-in-oil type nanoemulsion composition may be included in an amount of 1 to 99 wt% based on the total weight of the cosmetic composition. In addition, the above-mentioned water-in-oil type nanoemulsion composition may be prepared by emulsifying a mixture of an oil phase including a surfactant and a skin conditioning agent; and an aqueous phase including a polyol; using a microfluidizer.

The above surfactants are PEG-10 dimethicone, cetyl PEG/PPG-10/1 dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-10 tris(trimethylsiloxy)silylethyl dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, bis-PEG/PPG-14/14 dimethicone, bis-PEG/PPG-20/20 dimethicone, PEG/PPG-18/18 dimethicone, PEG/PPG-19/19 dimethicone, PEG/PPG-20/20 dimethicone, PEG-8 dimethicone, bis-PEG-12 dimethicone, lauryl PEG-8 dimethicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Dimethicone/PEG-10/15 Crosspolymer, Dimethicone/Polyglycerin-3 Crosspolymer, Lauryl Dimethicone/Polyglycerin-3 Crosspolymer, Sorbitan Stearate, Sorbitan Oleate, Sorbitan Isostearate, Sorbitan Sesquioleate, PEG-30 Dipolyhydroxystearate, Polyglyceryl-2 Isostearate, Polyglyceryl-2 Diisostearate, Polyglyceryl-2 Tetraisostearate, Polyglyceryl-2 Oleate, Polyglyceryl-2 Dipolyhydroxystearate, Polyglyceryl-3 Distearate, Polyglyceryl-3 Diisostearate, Polyglyceryl-3 polyricinoleate, polyglyceryl-4 isostearate, polyglyceryl-4 oleate, polyglyceryl-4 tristearate, polyglyceryl-4 pentastearate, polyglyceryl-4 pentaoleate, polyglyceryl-4 polyricinoleate, polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate, polyhydroxystearic acid, polyglyceryl-6 pentastearate, polyglyceryl-6 pentaoleate, polyglyceryl-6 polyricinoleate, polyglyceryl-10 decaethylhexanoate, polyglyceryl-10 decastearate, polyglyceryl-10 decaisostearate, polyglyceryl-10 pentaisostearate, polyglyceryl-10 decaoleate, It may include at least one selected from the group consisting of polyglyceryl-10 decaoleate and polyglyceryl-10 dodecabehenate. In addition, the surfactant may be included in an amount of 10 to 20 wt% based on the total weight of the water-in-oil type nanoemulsion composition.

The above skin conditioning agent may include at least one selected from the group consisting of hydrocarbon oils, ester oils, silicone oils, polyesters, fatty acids and/or fatty alcohols, animal oils, vegetable oils, mineral oils, and mixtures thereof, and may be selected from the group consisting of disiloxane, trisiloxane, dimethicone, methyl trimethicone, cyclopentasiloxane, cyclohexasiloxane, caprylyl methicone, cetyl dimethicone, phenyl trimethicone, diphenylsiloxyphenyl trimethicone, diphenyl dimethicone, trimethylsiloxyphenyl dimethicone, trimethylsiloxysilicate, phenylpropyldimethylsiloxysilicate, acrylates/dimethicone copolymer, acrylates/polytrimethylsiloxymethacrylate copolymer, acrylates/stearyl acrylate/dimethicone methacrylate copolymer, Polypropylsilsesquioxane, Polymethylsilsesquioxane, Polyphenylsilsesquioxane, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethicone Crosspolymer, Dimethicone/PEG-10/15 Crosspolymer, Dimethicone/Polyglycerin-3 Crosspolymer, Lauryl Dimethicone/Polyglycerin-3 Crosspolymer, Dilinoleic Acid/Butanediol Copolymer, Castor Oil/IPDI Copolymer, Coco-Caprylate/Caprate, Triheptanoin, Dipropylene Glycol Dibenzoate, Octyldodecanol, Tridecyl Trimellitate, Caprylic/Capric Triglyceride, Decyl Cocoate, C12-15 Alkyl Benzoate, It may include at least one selected from the group consisting of isononyl isononanoate, cetyl ethylhexanoate, butylene glycol dicaprylate/dicaprate, isododecane, C15-19 alkane, C9-12 alkane, squalane, and hydrogenated coconut oil. In addition, the skin conditioning agent may be included in an amount of 20 to 50 wt% based on the total weight of the water-in-oil type nanoemulsion composition.

The sum of the weights of the surfactant and the skin conditioning agent may be included in an amount of 30 to 70 wt% based on the total weight of the water-in-oil type nanoemulsion composition, and the weight ratio of the surfactant and the skin conditioning agent may be included in an amount of 1:1 to 1:5.

The above polyol may include at least one selected from the group consisting of propanediol, propylene glycol, methylpropanediol, dipropylene glycol, butylene glycol, diglycerin, glycerin, pentylene glycol, and 1,2-hexanediol. In addition, the polyol may be included in an amount of 0.1 to 50 wt% based on the total weight of the water-in-oil type nanoemulsion composition.

The above powder may include at least one selected from the group consisting of silica, mica, barium sulfate, alumina, titanium dioxide, particulate titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, ultramarine, and chromium oxide green. In addition, the powder may be included in an amount of 0.1 to 50 wt% based on the total weight of the cosmetic composition.

The above water-in-oil type nanoemulsion composition may further comprise an additional ultraviolet ray blocker.

The additional UV filter may include at least one selected from the group consisting of titanium dioxide, particulate titanium dioxide, zinc oxide, ethylhexyl methoxycinnamate, octyl salicylate, octocrylene, butyl methoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranilate, 3,4-methylbenzylidene camphor, bis-ethylhexyloxyphenol methoxyphenyl triazine, phenylbenzimidazole sulfonic acid, isoamyl p-methoxycinnamate, and diethylaminohydroxybenzoyl hexyl benzoate, and mixtures thereof. In addition, the additional UV filter may be included in the oil phase, the water phase, or both of the water-in-oil type nanoemulsion composition.

The above-mentioned water-in-oil type nanoemulsion composition may further include an effective ingredient. In addition, the effective ingredient may include at least one selected from the group consisting of niacinamide, adenosine panthenol, centella asiatica extract, hyaluronic acid, ceramide NP, caffeine, madecassoside, madecassic acid, arbutin, cholesterol, amino acids, vitamins, collagen, and proteins. The above-mentioned effective ingredient may be included in an amount of 0.001 to 20 wt% based on the total weight of the water-in-oil type nanoemulsion composition.

The above-mentioned water-in-oil type nanoemulsion composition may be prepared using a microfluidizer under a pressure of 100 to 1500 bar. In addition, the above-mentioned water-in-oil type nanoemulsion composition may be prepared using a microfluidizer under a temperature of 0 to 70° C.

The above-mentioned water-in-oil type UV-blocking nanoemulsion cosmetic composition contains 0.1 to 50 wt% of a UV-blocking agent based on the total weight of the cosmetic composition, and may have an SPF of 10 to 60.

According to one embodiment of the present invention, a water-in-oil type UV-blocking nanoemulsion cosmetic composition having excellent UV-blocking effect can be provided.

In addition, according to one embodiment of the present invention, a water-in-oil type UV-blocking nanoemulsion cosmetic composition with improved moisturizing power, usability, and skin absorption can be provided.

In addition, according to one embodiment of the present invention, a water-in-oil type UV-blocking nanoemulsion cosmetic composition having high covering power, excellent adhesion, and long-lasting properties can be provided.

Figure 1 shows the IN VITRO SPF measurement results for the water-in-oil type UV-blocking nanoemulsion cosmetic composition of the present invention.

Hereinafter, the present invention will be described in more detail with reference to examples. However, these examples are intended to exemplify the present invention and should not be construed as limiting the scope of the present invention.

According to one aspect of the present invention, a water-in-oil type UV-blocking nanoemulsion cosmetic composition is provided.

The above-mentioned water-in-oil type UV-blocking nanoemulsion cosmetic composition may include a water-in-oil type nanoemulsion composition and a powder.

The above powder may include a sunscreen. The sunscreen may include at least one selected from the group consisting of titanium dioxide, particulate titanium dioxide, zinc oxide, ethylhexyl methoxycinnamate, octyl salicylate, octocrylene, butyl methoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranilate, 3,4-methylbenzylidene camphor, bis-ethylhexyloxyphenol methoxyphenyl triazine, phenylbenzimidazole sulfonic acid, isoamyl p-methoxycinnamate, and diethylaminohydroxybenzoylhexyl benzoate, and mixtures thereof.

The above-mentioned water-in-oil type nanoemulsion composition may include a surfactant, a skin conditioning agent, and a polyol. In addition, the above-mentioned water-in-oil type nanoemulsion composition may further include an effective ingredient, purified water, and other additives.

The water-in-oil type nanoemulsion composition of the present invention may have an average particle diameter of the aqueous phase of 10 to 1000 nm. In the present invention, the average particle diameter of the aqueous phase may be 10 nm or more, 50 nm or more, 100 nm or more, 150 nm or more, or 200 nm or more, and may be 1000 nm or less, 900 nm or less, 800 nm or less, 700 nm or less, 600 nm or less, 500 nm or less, or 400 nm or less.

The water-in-oil type nanoemulsion composition may be included in an amount of 1 to 99 wt% based on the total weight of the cosmetic composition. In the present invention, the water-in-oil type nanoemulsion composition may be included in an amount of 1 wt% or more, 10 wt% or more, 20 wt% or more, 30 wt% or more, 40 wt% or more, 50 wt% or more, or 60 wt% or more, and may be included in an amount of 99 wt% or less, 90 wt% or less, 80 wt% or less, or 70 wt% or less.

The above-mentioned water-in-oil type nanoemulsion composition can be prepared by emulsifying a mixture of an oil phase including a surfactant and a skin conditioning agent; and an aqueous phase including a polyol using a microfluidizer.

In one specific example, the emulsification of the water-in-oil type nanoemulsion composition can be performed using a microfluidizer under a pressure of 100 to 1500 bar. In the present invention, the emulsification using a microfluidizer can be performed at 100 bar or more, 200 bar or more, 300 bar or more, 400 bar or more, or 500 bar or more, and can be performed at 1500 bar or less, 1300 bar or less, 1100 bar or less, 900 bar or less, or 700 bar or less. If the emulsification is performed at less than 100 bar, there is a problem that the force for pushing the mixture is weak and it does not pass through the device or a nanoemulsion is not formed, and if it is performed at more than 1500 bar, there is a problem that phase separation occurs and a nanoemulsion is not formed.

In another specific example, the emulsification of the water-in-oil type nanoemulsion composition can be performed using a microfluidizer at a temperature of 0 to 70°C. In the present invention, the emulsification using a microfluidizer can be performed at 0°C or higher, 10°C or higher, 20°C or higher, 30°C or higher, 40°C or higher, 50°C or higher, or 60°C or higher, and can be performed at 70°C or lower, 60°C or lower, 50°C or lower, 40°C or lower, or 30°C or lower. There is a limitation in equipment when the emulsification is performed below 0°C, and when it is performed above 70°C, there is a problem that the phases separate and a nanoemulsion is not formed.

In the present invention, the ultraviolet ray blocker may be included in an amount of 0.1 to 50 wt% based on the total weight of the cosmetic composition. In the present invention, the ultraviolet ray blocker may be included in an amount of 0.5 to 50 wt%, 1.0 to 45 wt%, or 5 to 40 wt%. If the ultraviolet ray blocker is included in an amount of less than 0.1 wt%, the ultraviolet ray blocking effect may not be sufficient, and if it is included in an amount of more than 50 wt%, there is a problem that the stability of the formulation is reduced.

The water-in-oil type UV-blocking nanoemulsion cosmetic composition of the present invention may have an SPF of 10 to 60. The water-in-oil type UV-blocking nanoemulsion cosmetic composition of the present invention may have an SPF of 20 to 60, or 30 to 60. In the present invention, the SPF index was measured in-vitro using a UV-2000 Ultraviolet Transmittance Analyzer device. The sample was prepared by uniformly applying a certain amount of the composition to a PMMA plate.

In the cosmetic composition of the present invention, as the particle size of the water phase decreases, the surface area of the particles increases, and the ultraviolet ray blocker is evenly dispersed on the increased surface area, and the ultraviolet ray blocker that is not wetted and clumped between the particles can be minimized. In addition, the distance between the ultraviolet ray blockers is close, and the ultraviolet ray reflecting performance is improved and the ultraviolet ray blocking efficacy can be improved by forming thin, dense, and uniform ultraviolet ray blocking layers in layers.

A. Surfactant

The composition of the present invention comprises a surfactant. In the present invention, the surfactant affects the stability of the emulsified formulation.

The above surfactants are PEG-10 dimethicone, cetyl PEG/PPG-10/1 dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-10 tris(trimethylsiloxy)silylethyl dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, bis-PEG/PPG-14/14 dimethicone, bis-PEG/PPG-20/20 dimethicone, PEG/PPG-18/18 dimethicone, PEG/PPG-19/19 dimethicone, PEG/PPG-20/20 dimethicone, PEG-8 dimethicone, bis-PEG-12 dimethicone, lauryl PEG-8 dimethicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Dimethicone/PEG-10/15 Crosspolymer, Dimethicone/Polyglycerin-3 Crosspolymer, Lauryl Dimethicone/Polyglycerin-3 Crosspolymer, Sorbitan Stearate, Sorbitan Oleate, Sorbitan Isostearate, Sorbitan Sesquioleate, PEG-30 Dipolyhydroxystearate, Polyglyceryl-2 Isostearate, Polyglyceryl-2 Diisostearate, Polyglyceryl-2 Tetraisostearate, Polyglyceryl-2 Oleate, Polyglyceryl-2 Dipolyhydroxystearate, Polyglyceryl-3 Distearate, Polyglyceryl-3 Diisostearate, Polyglyceryl-3 polyricinoleate, polyglyceryl-4 isostearate, polyglyceryl-4 oleate, polyglyceryl-4 tristearate, polyglyceryl-4 pentastearate, polyglyceryl-4 pentaoleate, polyglyceryl-4 polyricinoleate, polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate, polyhydroxystearic acid, polyglyceryl-6 pentastearate, polyglyceryl-6 pentaoleate, polyglyceryl-6 polyricinoleate, polyglyceryl-10 decaethylhexanoate, polyglyceryl-10 decastearate, polyglyceryl-10 decaisostearate, polyglyceryl-10 pentaisostearate, polyglyceryl-10 decaoleate, It may be at least one selected from the group consisting of polyglyceryl-10 decaoleate and polyglyceryl-10 dodecabehenate.

The surfactant may be included in an amount of 10 to 20 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the surfactant may be included in an amount of 10 wt% or more, 11 wt% or more, 12 wt% or more, 13 wt% or more, or 14 wt% or more, and may be included in an amount of 20 wt% or less, 19 wt% or less, 18 wt% or less, 17 wt% or less, 16 wt% or less, or 15 wt% or less. When the surfactant is included in an amount of less than 10 wt%, a nanoemulsion may not be formed, and when it is included in an amount of more than 20 wt%, there is a problem that the stability of the formulation is reduced.

B. Skin conditioning agent

The composition of the present invention comprises a skin conditioning agent. In the present invention, the skin conditioning agent can improve moisturizing retention and provide a soft feeling when used.

The above skin conditioning agent may be at least one selected from the group consisting of hydrocarbon oils, ester oils, silicone oils, polyesters, fatty acids and/or fatty alcohols, animal oils, vegetable oils, mineral oils, and mixtures thereof, and for example, disiloxane, trisiloxane, dimethicone, methyl trimethicone, cyclopentasiloxane, cyclohexasiloxane, caprylyl methicone, cetyl dimethicone, phenyl trimethicone, diphenylsiloxyphenyl trimethicone, diphenyl dimethicone, trimethylsiloxyphenyl dimethicone, trimethylsiloxysilicate, phenylpropyldimethylsiloxysilicate, acrylates/dimethicone copolymer, acrylates/polytrimethylsiloxymethacrylate copolymer, acrylates/stearyl acrylate/dimethicone methacrylate copolymer, Polypropylsilsesquioxane, Polymethylsilsesquioxane, Polyphenylsilsesquioxane, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethicone Crosspolymer, Dimethicone/PEG-10/15 Crosspolymer, Dimethicone/Polyglycerin-3 Crosspolymer, Lauryl Dimethicone/Polyglycerin-3 Crosspolymer, Dilinoleic Acid/Butanediol Copolymer, Castor Oil/IPDI Copolymer, Coco-Caprylate/Caprate, Triheptanoin, Dipropylene Glycol Dibenzoate, Octyldodecanol, Tridecyl Trimellitate, Caprylic/Capric Triglyceride, Decyl Cocoate, C12-15 Alkyl Benzoate, It may be at least one selected from the group consisting of isononyl isononanoate, cetyl ethylhexanoate, butylene glycol dicaprylate/dicaprate, isododecane, C15-19 alkane, C9-12 alkane, squalane, and hydrogenated coconut oil.

The skin conditioning agent may be included in an amount of 20 to 50 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the skin conditioning agent may be included in an amount of 20 wt% or more, 22 wt% or more, 25 wt% or more, 28 wt% or more, or 30 wt% or more, and may be included in an amount of 50 wt% or less, 45 wt% or less, 40 wt% or less, 35 wt% or less, or 30 wt% or less. When the skin conditioning agent is included in an amount of less than 20 wt%, there is a problem that a nanoemulsion is not formed and phases are separated, and when the skin conditioning agent is included in an amount of more than 50 wt%, the proportion of the outer phase (oil phase) is high, which reduces the advantages of the nanoemulsion.

In addition, the sum of the weights of the surfactant and the skin conditioning agent may be included in an amount of 30 to 70 wt% based on the total weight of the composition. In the present invention, the sum of the weights of the surfactant and the skin conditioning agent may be included in an amount of 30 wt% or more, 35 wt% or more, or 40 wt% or more, and may be included in an amount of 70 wt% or less, 65 wt% or less, 60 wt% or less, 55 wt% or less, or 50 wt% or less.

The weight ratio of the surfactant and the skin conditioning agent may be included as 1:1 to 1:5. In the present invention, the weight ratio of the surfactant and the skin conditioning agent may be included as 1:1 to 1:5, or 1:1 to 1:4, or 1:1 to 1:3.5.

C. Polyol

The composition of the present invention comprises a polyol. In the present invention, the polyol can increase moisturizing power and improve formulation stability.

The above polyol may be at least one selected from the group consisting of propanediol, propylene glycol, methylpropanediol, dipropylene glycol, butylene glycol, diglycerin, glycerin, pentylene glycol, and 1,2-hexanediol.

The polyol may be included in an amount of 0.1 to 50 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the polyol may be included in an amount of 0.1 wt% or more, 5 wt% or more, 10 wt% or more, 15 wt% or more, or 20 wt% or more, and may be included in an amount of 50 wt% or less, 45 wt% or less, 40 wt% or less, 35 wt% or less, or 30 wt% or less. When the polyol is included in an amount of less than 0.1 wt%, the viscosity is formed to be high, which may make it difficult to pass through a microfluidizer, and when the polyol is included in an amount of more than 50 wt%, the emulsification may not occur and phases may separate.

D. Powder

The composition of the present invention may include a powder.

In the present invention, any powder known in the art can be used, and for example, at least one selected from the group consisting of silica, mica, barium sulfate, alumina, titanium dioxide, particulate titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, ultramarine, and chromium oxide green can be used.

The above powder may be included in an amount of 0.1 to 50 wt% based on the total weight of the cosmetic composition. In the present invention, the powder may be included in an amount of 0.1 wt% or more, 5 wt% or more, 10 wt% or more, 15 wt% or more, or 20 wt% or more, and may be included in an amount of 50 wt% or less, 45 wt% or less, 40 wt% or less, 35 wt% or less, or 30 wt% or less. If the powder is included in an amount of less than 0.1 wt%, there is a problem that the makeup and UV protection functions, such as waterproofness, spreadability, usability, durability, and coverage, are not achieved, and if the powder is included in an amount of more than 50 wt%, there is a problem that the stability of the formulation is reduced.

The above powder contains a sunscreen. The sunscreen contained in the powder may be at least one selected from an organic sunscreen, an inorganic sunscreen, and a mixture thereof.

The above sunscreen may be in powder form, crystal form, or liquid form.

The above UV blocking agent may include at least one selected from the group consisting of titanium dioxide, particulate titanium dioxide, zinc oxide, ethylhexyl methoxycinnamate, octyl salicylate, octocrylene, butyl methoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranilate, 3,4-methylbenzylidene kemperer, bis-ethylhexyloxyphenol methoxyphenyl triazine, phenylbenzimidazole sulfonic acid, isoamyl p-methoxycinnamate, diethylaminohydroxybenzoylhexyl benzoate, and mixtures thereof.

E. Purified water

The composition of the present invention may include purified water. In the present invention, the purified water may be included in the water-in-oil type nanoemulsion composition, and/or may be directly included in the cosmetic composition. In the present invention, the content of the purified water may be the remaining amount that satisfies 100% of the water-in-oil type nanoemulsion composition, and may be included, for example, 1 to 65 wt% based on the total amount of the water-in-oil type nanoemulsion composition. In addition, the content of the purified water may be the remaining amount that satisfies 100% of the cosmetic composition.

F. Additional sunscreen

The composition of the present invention may further comprise an additional sunscreen.

The above additional UV blocking agent may be at least one selected from organic UV blocking agents, inorganic UV blocking agents, and mixtures thereof.

The above UV blocking agent may include at least one selected from the group consisting of titanium dioxide, particulate titanium dioxide, zinc oxide, ethylhexyl methoxycinnamate, octyl salicylate, octocrylene, butyl methoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranilate, 3,4-methylbenzylidene kemperer, bis-ethylhexyloxyphenol methoxyphenyl triazine, phenylbenzimidazole sulfonic acid, isoamyl p-methoxycinnamate, diethylaminohydroxybenzoylhexyl benzoate, and mixtures thereof.

The above additional UV blocking agent may be included in the oil phase, the water phase, or both of them of the water-in-oil type nanoemulsion composition. When the above UV blocking agent is included in the oil phase (outer phase), the surface area for the UV blocking agent to be distributed is wide, so that the UV blocking agent is evenly distributed, thereby effectively exerting the UV blocking effect. When the above UV blocking agent is included in the water phase (inner phase), since the water phase particles of the nanoemulsion of the present invention are densely distributed, the organic UV blocking agent is densely and uniformly distributed, thereby exerting a more excellent UV blocking effect.

The additional UV blocker may be included in an amount of 0.1 to 50 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the additional UV blocker may be included in an amount of 0.1 wt% or more, 5 wt% or more, 10 wt% or more, 15 wt% or more, or 20 wt% or more, and may be included in an amount of 50 wt% or less, 45 wt% or less, 40 wt% or less, 35 wt% or less, or 30 wt% or less. When the additional UV blocker is included in an amount of less than 0.1 wt%, there is a problem that the UV blocking function is not sufficient, and when it is included in an amount of more than 50 wt%, there is a problem that the stability of the formulation is reduced.

F. Efficacious ingredients

The composition of the present invention may contain an effective ingredient.

In the present invention, any ingredient known in the relevant field may be used as the effective ingredient if it is a water-soluble physiologically active ingredient, and for example, at least one selected from the group consisting of niacinamide, adenosine, panthenol, centella asiatica extract, hyaluronic acid, ceramide NP, caffeine, madecassoside, madecassic acid, arbutin, cholesterol, amino acids, vitamins, collagen, and proteins may be used.

The above-mentioned effective ingredient may be included in an amount of 0.001 to 20 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In the present invention, the effective ingredient may be included in an amount of 0.001 wt% or more, 0.005 wt% or more, 0.01 wt% or more, 0.05 wt% or more, 0.1 wt% or more, 0.5 wt% or more, 1 wt% or more, or 2 wt% or more, and may be included in an amount of 20 wt% or less, 15 wt% or less, 10 wt% or less, 7 wt% or less, or 5 wt% or less. When the above-mentioned effective ingredient is included in an amount of less than 0.001 wt%, the efficacy of the effective ingredient may not be sufficiently exhibited, and when it is included in an amount of more than 20 wt%, the stability of the formulation may be low.

G. Other additives

Meanwhile, the composition of the present invention may further include additives commonly used in the technical field to which the present invention belongs, depending on the intended use, within a range that does not impede the purpose and effect of the present invention, and may preferably include at least one selected from the group consisting of a moisturizer, a metal ion sequestering agent, a skin softener, an antiseptic, and a preservative, but is not limited thereto.

Other additives mentioned above in the present invention may be contained in an amount of 0.1 to 10 wt%.

Hereinafter, preferred examples are described in order to explain the present invention more specifically. However, the following examples are described only for the purpose of illustrating the present invention and do not limit the present invention.

<Preparation of water-in-oil nanoemulsion composition>

Compositions having the same components as in Table 1 below were manufactured according to the high-pressure dispersion temperature and pressure in Table 2.

Ingredients (weight%) Manufacturing example 1 Manufacturing example 2 Manufacturing example 3 Manufacturing example 4 Manufacturing example 5 Manufacturing example 6 Paid part PEG-10 Dimethicone 20 20 20 20 20 20 Dimethicone 30 30 30 30 30 30 Awards Purified water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount glycerin 10 10 10 10 10 10 Propanediol 5 5 5 5 5 5 Other additives 5 5 5 5 5 5 Total 100.0 100.0 100.0 100.0 100.0 100.0 Ingredients (weight%) Manufacturing example 7 Manufacturing example 8 Manufacturing example 9 Manufacturing example 10 Manufacturing example 11 Manufacturing example 12 Paid part PEG-10 Dimethicone 20 20 20 20 20 20 Dimethicone 30 30 30 30 30 30 Awards Purified water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount glycerin 10 10 10 10 10 10 Propanediol 5 5 5 5 5 5 Other additives 5 5 5 5 5 5 Total 100.0 100.0 100.0 100.0 100.0 100.0

Manufacturing example 1 Manufacturing example 2 Manufacturing example 3 Manufacturing example 4 Manufacturing example 5 Manufacturing example 6 temperature 25 25 25 25 80 100 enter 40 80 1600 2000 500 500 Manufacturing example 7 Manufacturing example 8 Manufacturing example 9 Manufacturing example 10 Manufacturing example 11 Manufacturing example 12 temperature 25 25 25 60 60 60 enter 200 700 1500 200 700 1500

Specifically, after weighing according to the composition of the above Table 1, the oil phase and the water phase were each heated to 30°C to dissolve, and the water phase was slowly added to the oil phase while stirring at 3000 rpm for 10 minutes using a homogenizer to prepare a general emulsion. The general emulsion was emulsified twice using a microfluidizer under the temperature and pressure conditions of the above Table 2 to prepare water-in-oil type nanoemulsion compositions of Manufacturing Examples 1 to 12.

Formulation implementation test

Formulation implementation tests were performed on the composition of the manufacturing example.

Each composition manufactured in the manufacturing example was observed with the naked eye, and the particle size was measured by static light scattering (SLS) for the composition diluted in oil using an LA-960 particle size analyzer (Horiba, Japan). The results of the evaluation of the appearance of the formulation and the average particle size are shown in Table 2 below.

- Formulation evaluation criteria

◎: Very good, ○: Good, △: Average, ×: Phase separation

item Manufacturing example 1 Manufacturing example 2 Manufacturing example 3 Manufacturing example 4 Manufacturing example 5 Manufacturing example 6 Formulation implementation evaluation × × △ × △ × Average particle size (nm) - - 1500 - 1200 - item Manufacturing example 7 Manufacturing example 8 Manufacturing example 9 Manufacturing example 10 Manufacturing example 11 Manufacturing example 12 Formulation implementation evaluation ◎ ◎ ◎ ◎ ◎ ◎ Average particle size (nm) 260 250 240 260 230 230

As shown in Table 3, it was confirmed that Manufacturing Examples 7 to 12 implemented nanoemulsion compositions having an average particle size of 230 to 260 nm, but in Manufacturing Examples 1 to 2 with low manufacturing pressure, Manufacturing Examples 3 to 4 with high manufacturing pressure, and Manufacturing Examples 5 to 6 with high manufacturing temperature, an emulsion was not formed after passing through the microfluidizer and phase separation was observed.

<Preparation of water-in-oil type UV-blocking nanoemulsion composition 1>

Water-in-oil type UV-blocking nanoemulsion compositions having different contents of inorganic UV-blocking agent were prepared according to the composition (weight %) in Table 4 below.

Ingredients (weight%) Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Paid part PEG-10 DIAMEICON 10.0 10.0 10.0 10.0 10.0 10.0 Dimethicone 25 25 25 25 25 25 Powder Titanium Dioxide 5 20 40 5 20 40 Yellow iron oxide 1.5 1.5 1.5 1.5 1.5 1.5 red iron oxide 0.5 0.5 0.5 0.5 0.5 0.5 black iron oxide 0.5 0.5 0.5 0.5 0.5 0.5 Nylon powder 1.0 1.0 1.0 1.0 1.0 1.0 Awards Purified water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Propanediol 10.0 10.0 10.0 10.0 10.0 10.0 Other additives 0.5 0.5 0.5 0.5 0.5 0.5 Total 100.0 100.0 100.0 100.0 100.0 100.0

Specifically, after weighing according to the composition of Table 4 above, PEG-10 dimethicone and dimethicone were dissolved by heating at 30°C, and a powder containing a UV blocker was added to prepare an oil phase. Propanediol, purified water, and other additives were dissolved by heating at 40°C to prepare an aqueous phase. The oil phase was mixed with a homogenizer at 30°C, the aqueous phase was slowly added, and stirred at 3000 rpm for 10 minutes to prepare a general emulsion. The general emulsion was subjected to a high-pressure emulsification process three times at a temperature of 60°C and a pressure of 1000 bar using a microfluidizer to prepare a water-in-oil type UV blocking nanoemulsion cosmetic composition. In the case of a comparative example, it was prepared in the same way as the general emulsion manufacturing process before the high-pressure emulsification process by the microfluidizer in the example.

UV protection factor measurement test

IN VITRO SPF was measured for the cosmetic compositions of examples and comparative examples.

SPF was measured using a UV-2000 Ultraviolet Transmittance Analyzer instrument, and the samples were prepared by uniformly applying a certain amount of the composition onto a PMMA plate. The measurement results are shown in Table 5.

item Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 SPF 35.12 44.5 52.24 21.03 33.2 38.71

As shown in Table 5, it was confirmed that Examples 1, 2, and 3 had improved SPF compared to Comparative Examples 1, 2, and 3 of the same composition. That is, it can be seen that a cosmetic composition having a higher UV protection effect can be provided by manufacturing a general emulsion composition of the same composition into a nanoemulsion and including it in a cosmetic composition.

<Preparation of water-in-oil type UV protection nanoemulsion composition 2>

Water-in-oil type nanoemulsion compositions with different contents of organic UV blocking agent were prepared according to the composition (weight %) in Table 6.

Ingredients (weight%) Example 4 Example 5 Example 6 Comparative Example 4 Comparative Example 5 Comparative Example 6 Paid part PEG-10 DIAMEICON 10.0 10.0 10.0 10.0 10.0 10.0 Dimethicone 25 25 25 25 25 25 Powder Titanium Dioxide 10 10 10 10 10 10 Yellow iron oxide 1.5 1.5 1.5 1.5 1.5 1.5 red iron oxide 0.5 0.5 0.5 0.5 0.5 0.5 black iron oxide 0.5 0.5 0.5 0.5 0.5 0.5 Nylon powder 1.0 1.0 1.0 1.0 1.0 1.0 Awards Purified water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Propanediol 10.0 10.0 10.0 10.0 10.0 10.0 Phenylbenzimidazole sulfonic acid 5 10 20 5 10 20 Other additives 0.5 0.5 0.5 0.5 0.5 0.5 Total 100.0 100.0 100.0 100.0 100.0 100.0

Specifically, after weighing according to the composition of Table 6 above, PEG-10 dimethicone and dimethicone were dissolved by heating at 30°C, and powder containing UV blocking agent was added to prepare an oil phase. Propanediol, phenylbenzimidazole sulfonic acid, purified water, and other additives were dissolved by heating at 40°C to prepare an aqueous phase. The oil phase was mixed with a homogenizer at 30°C, and the aqueous phase was slowly added and stirred at 3000 rpm for 10 minutes to prepare a general emulsion. The general emulsion was subjected to a high-pressure emulsification process three times at a temperature of 60°C and a pressure of 1000 bar using a microfluidizer to prepare a nanoemulsion cosmetic composition. In the case of the comparative example, it was prepared in the same way as the general emulsion manufacturing process before the high-pressure emulsification process by the microfluidizer in the example. UV protection factor measurement test

IN VITRO SPF was measured for the cosmetic compositions of examples and comparative examples.

SPF was measured using a UV-2000 Ultraviolet Transmittance Analyzer, and the sample was prepared by uniformly applying a certain amount of the composition to a PMMA plate. The measured results are shown in Table 7 and Fig. 1.

item Example 4 Example 5 Example 6 Comparative Example 4 Comparative Example 5 Comparative Example 6 SPF 39.11 43.13 54.58 13.2 16.73 28.08

As shown in Table 7, it was confirmed that Examples 4, 5, and 6 had improved SPF compared to Comparative Examples 4, 5, and 6 of the same composition. That is, it can be seen that a cosmetic composition having a higher UV protection effect can be provided by manufacturing a general emulsion composition of the same composition into a nanoemulsion and including it in a cosmetic composition.

<Preparation of water-in-oil type UV-blocking nanoemulsion composition 3>

Water-in-oil type nanoemulsion compositions with different contents of organic UV blocking agent were prepared according to the composition (weight %) in Table 8.

Ingredients (weight%) Example 7 Example 8 Example 9 Comparative Example 7 Comparative Example 8 Comparative Example 9 Paid part PEG-10 DIAMEICON 10.0 10.0 10.0 10.0 10.0 10.0 Ethylhexyl methoxycinnamate 5 10 20 5 10 20 Dimethicone 25 25 25 25 25 25 Powder Titanium Dioxide 10 10 10 10 10 10 Yellow iron oxide 1.5 1.5 1.5 1.5 1.5 1.5 red iron oxide 0.5 0.5 0.5 0.5 0.5 0.5 black iron oxide 0.5 0.5 0.5 0.5 0.5 0.5 Nylon powder 1.0 1.0 1.0 1.0 1.0 1.0 Awards Purified water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Propanediol 10.0 10.0 10.0 10.0 10.0 10.0 Other additives 0.5 0.5 0.5 0.5 0.5 0.5 Total 100.0 100.0 100.0 100.0 100.0 100.0

Specifically, after weighing according to the composition of Table 8 above, PEG-10 dimethicone, ethylhexyl methoxycinnamate, and dimethicone were dissolved by heating at 30°C, and a powder containing a UV blocker was added to prepare an oil phase. Propanediol, purified water, and other additives were dissolved by heating at 40°C to prepare an aqueous phase. The oil phase was mixed with a homogenizer at 30°C, the aqueous phase was slowly added, and stirred at 3000 rpm for 10 minutes to prepare a general emulsion. The general emulsion was subjected to a high-pressure emulsification process three times at a temperature of 60°C and a pressure of 1000 bar using a microfluidizer to prepare a water-in-oil type UV blocking nanoemulsion cosmetic composition. In the case of a comparative example, it was prepared in the same way as the general emulsion manufacturing process before the high-pressure emulsification process by the microfluidizer in the example.

UV protection factor measurement test

IN VITRO SPF was measured for the cosmetic compositions of examples and comparative examples.

SPF was measured using a UV-2000 Ultraviolet Transmittance Analyzer, and the sample was prepared by uniformly applying a certain amount of the composition to a PMMA plate. The measurement results are shown in Table 9.

item Example 7 Example 8 Example 9 Comparative Example 7 Comparative Example 8 Comparative Example 9 SPF 43 47 56 30 31 33

As shown in Table 9, it was confirmed that Examples 7, 8, and 9 had improved SPF compared to Comparative Examples 7, 8, and 9 of the same composition. That is, it can be seen that a cosmetic composition having a higher UV protection effect can be provided by manufacturing a general emulsion composition of the same composition as a nanoemulsion and including it in a cosmetic composition.

<Manufacture of water-in-oil type UV-blocking nanoemulsion composition 4

Water-in-oil type nanoemulsion compositions with different contents of organic UV blocking agent were prepared according to the composition (weight %) in Table 10.

Ingredients (weight%) Example 10 Example 11 Example 12 Comparative Example 10 Comparative Example 11 Comparative Example 12 Paid part PEG-10 DIAMEICON 10.0 10.0 10.0 10.0 10.0 10.0 Ethylhexyl methoxycinnamate 5 10 20 5 10 20 Dimethicone 25 25 25 25 25 25 Powder Titanium Dioxide 10 10 10 10 10 10 Yellow iron oxide 1.5 1.5 1.5 1.5 1.5 1.5 red iron oxide 0.5 0.5 0.5 0.5 0.5 0.5 black iron oxide 0.5 0.5 0.5 0.5 0.5 0.5 Nylon powder 1.0 1.0 1.0 1.0 1.0 1.0 Awards Purified water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Propanediol 10.0 10.0 10.0 10.0 10.0 10.0 Phenylbenzimidazole sulfonic acid 2 5 10 2 5 10 Other additives 0.5 0.5 0.5 0.5 0.5 0.5 Total 100.0 100.0 100.0 100.0 100.0 100.0

Specifically, after weighing according to the composition of Table 10 above, PEG-10 dimethicone, ethylhexyl methoxycinnamate, and dimethicone were dissolved by heating at 30°C, and a powder containing a UV blocker was added to prepare an oil phase. Propanediol, phenylbenzimidazole sulfonic acid, purified water, and other additives were dissolved by heating at 40°C to prepare an aqueous phase. The oil phase was mixed with a homogenizer at 30°C, the aqueous phase was slowly added, and stirred at 3000 rpm for 10 minutes to prepare a general emulsion. The general emulsion was subjected to a high-pressure emulsification process three times at a temperature of 60°C and a pressure of 1000 bar using a microfluidizer to prepare a nanoemulsion cosmetic composition. In the case of a comparative example, it was prepared in the same way as the general emulsion manufacturing process before the high-pressure emulsification process by the microfluidizer in the example.

UV protection factor measurement test

IN VITRO SPF was measured for the cosmetic compositions of examples and comparative examples.

SPF was measured using a UV-2000 Ultraviolet Transmittance Analyzer, and the samples were prepared by uniformly applying a certain amount of the composition onto a PMMA plate. The measured results are shown in Table 11.

item Example 10 Example 11 Example 12 Comparative Example 10 Comparative Example 11 Comparative Example 12 SPF 44 52 60 30 32 37

As shown in Table 11, it was confirmed that Examples 10, 11, and 12 had improved SPF compared to Comparative Examples 10, 11, and 12 of the same composition. That is, it can be seen that a cosmetic composition having a higher UV protection effect can be provided by manufacturing a general emulsion composition of the same composition as a nanoemulsion and including it in a cosmetic composition.

Claims (24)

A water-in-oil nanoemulsion composition comprising a surfactant, a skin conditioning agent and a polyol; and
Containing powder;
The above powder is a water-in-oil type UV-blocking nanoemulsion cosmetic composition containing a UV-blocking agent. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the UV-blocking agent comprises at least one selected from the group consisting of titanium dioxide, particulate titanium dioxide, zinc oxide, ethylhexyl methoxycinnamate, octyl salicylate, octocrylene, butyl methoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranilate, 3,4-methylbenzylidene camphor, bis-ethylhexyloxyphenol methoxyphenyl triazine, phenylbenzimidazole sulfonic acid, isoamyl p-methoxycinnamate, diethylaminohydroxybenzoylhexyl benzoate, and mixtures thereof. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the water-in-oil type nanoemulsion composition is contained in an amount of 1 to 99 wt% based on the total weight of the cosmetic composition. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the water-in-oil type nanoemulsion composition is prepared by emulsifying a mixture of an oil phase containing a surfactant and a skin conditioning agent; and an aqueous phase containing a polyol using a microfluidizer. In claim 1,
The above surfactants are PEG-10 dimethicone, cetyl PEG/PPG-10/1 dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-10 tris(trimethylsiloxy)silylethyl dimethicone, PEG-9 polydimethylsiloxyethyl dimethicone, bis-PEG/PPG-14/14 dimethicone, bis-PEG/PPG-20/20 dimethicone, PEG/PPG-18/18 dimethicone, PEG/PPG-19/19 dimethicone, PEG/PPG-20/20 dimethicone, PEG-8 dimethicone, bis-PEG-12 dimethicone, lauryl PEG-8 dimethicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Lauryl Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Dimethicone/PEG-10/15 Crosspolymer, Dimethicone/Polyglycerin-3 Crosspolymer, Lauryl Dimethicone/Polyglycerin-3 Crosspolymer, Sorbitan Stearate, Sorbitan Oleate, Sorbitan Isostearate, Sorbitan Sesquioleate, PEG-30 Dipolyhydroxystearate, Polyglyceryl-2 Isostearate, Polyglyceryl-2 Diisostearate, Polyglyceryl-2 Tetraisostearate, Polyglyceryl-2 Oleate, Polyglyceryl-2 Dipolyhydroxystearate, Polyglyceryl-3 Distearate, Polyglyceryl-3 Diisostearate, Polyglyceryl-3 polyricinoleate, polyglyceryl-4 isostearate, polyglyceryl-4 oleate, polyglyceryl-4 tristearate, polyglyceryl-4 pentastearate, polyglyceryl-4 pentaoleate, polyglyceryl-4 polyricinoleate, polyglyceryl-4 diisostearate/polyhydroxystearate/sebacate, polyhydroxystearic acid, polyglyceryl-6 pentastearate, polyglyceryl-6 pentaoleate, polyglyceryl-6 polyricinoleate, polyglyceryl-10 decaethylhexanoate, polyglyceryl-10 decastearate, polyglyceryl-10 decaisostearate, polyglyceryl-10 pentaisostearate, polyglyceryl-10 decaoleate, A water-in-oil type UV-blocking nanoemulsion cosmetic composition comprising at least one selected from the group consisting of polyglyceryl-10 decaoleate and polyglyceryl-10 dodecabehenate. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the surfactant is contained in an amount of 10 to 20 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the skin conditioning agent comprises at least one selected from the group consisting of hydrocarbon oil, ester oil, silicone oil, polyester, fatty acid and/or fatty alcohol, animal oil, vegetable oil, mineral oil, and mixtures thereof. In claim 1,
The above skin conditioning agents are disiloxane, trisiloxane, dimethicone, methyl trimethicone, cyclopentasiloxane, cyclohexasiloxane, caprylyl methicone, cetyl dimethicone, phenyl trimethicone, diphenylsiloxyphenyl trimethicone, diphenyl dimethicone, trimethylsiloxyphenyl dimethicone, trimethylsiloxysilicate, phenylpropyldimethylsiloxysilicate, acrylates/dimethicone copolymer, acrylates/polytrimethylsiloxymethacrylate copolymer, acrylates/stearyl acrylate/dimethicone methacrylate copolymer, polypropylsilsesquioxane, polymethylsilsesquioxane, polyphenylsilsesquioxane, vinyl dimethicone/methicone silsesquioxane crosspolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethicone Crosspolymer, Dimethicone/PEG-10/15 Crosspolymer, Dimethicone/Polyglycerin-3 Crosspolymer, Lauryl Dimethicone/Polyglycerin-3 Crosspolymer, Dilinoleic Acid/Butanediol Copolymer, Castor Oil/IPDI Copolymer, Coco-Caprylate/Caprate, Triheptanoin, Dipropylene Glycol Dibenzoate, Octyldodecanol, Tridecyl Trimellitate, Caprylic/Capric Triglyceride, Decyl Cocoate, C12-15 Alkyl Benzoate, Isononyl Isononanoate, Cetyl Ethylhexanoate, Butylene Glycol Dicaprylate/Dicaprate, Isododecane, A water-in-oil type UV-blocking nanoemulsion cosmetic composition comprising at least one selected from the group consisting of C15-19 alkane, C9-12 alkane, squalane, and hydrogenated coconut oil. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the skin conditioning agent is contained in an amount of 20 to 50 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the sum of the weights of the surfactant and the skin conditioning agent is comprised of 30 to 70 weight% based on the total weight of the water-in-oil type nanoemulsion composition. A water-in-oil type UV-blocking nanoemulsion cosmetic composition according to claim 1, wherein the weight ratio of the surfactant and the skin conditioning agent is 1:1 to 1:5. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the polyol comprises at least one selected from the group consisting of propanediol, propylene glycol, methylpropanediol, dipropylene glycol, butylene glycol, diglycerin, glycerin, pentylene glycol, and 1,2-hexanediol. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the polyol is contained in an amount of 0.1 to 50 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the powder comprises at least one selected from the group consisting of silica, mica, barium sulfate, alumina, titanium dioxide, particulate titanium dioxide, zinc oxide, yellow iron oxide, red iron oxide, black iron oxide, ultramarine, and chromium oxide green. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the powder is contained in an amount of 0.1 to 50 wt% based on the total weight of the cosmetic composition. In claim 1,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the water-in-oil type nanoemulsion composition further comprises an additional UV-blocking agent. In claim 16,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the additional UV-blocking agent comprises at least one selected from the group consisting of titanium dioxide, particulate titanium dioxide, zinc oxide, ethylhexyl methoxycinnamate, octyl salicylate, octocrylene, butyl methoxydibenzoylmethane, oxybenzone, octyltriazone, menthyl anthranilate, 3,4-methylbenzylidene kemperer, bis-ethylhexyloxyphenol methoxyphenyl triazine, phenylbenzimidazole sulfonic acid, isoamyl p-methoxycinnamate, and diethylaminohydroxybenzoylhexyl benzoate, and mixtures thereof. In claim 16,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the additional UV-blocking agent is included in the oil phase, the water phase, or both of the oil-in-oil type nanoemulsion composition. In claim 1,
A water-in-oil type nanoemulsion composition for UV protection, which further comprises an effective ingredient. In claim 19,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the above-mentioned effective ingredient comprises at least one selected from the group consisting of niacinamide, adenosine, panthenol, centella asiatica extract, hyaluronic acid, ceramide NP, caffeine, madecassoside, madecassic acid, arbutin, cholesterol, amino acids, vitamins, collagen, and proteins. In claim 19,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the above-mentioned effective ingredient is contained in an amount of 0.001 to 20 wt% based on the total weight of the water-in-oil type nanoemulsion composition. In claim 4,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the water-in-oil type nanoemulsion composition is prepared using a microfluidizer under a pressure of 100 to 1500 bar. In claim 4,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition, wherein the water-in-oil type nanoemulsion composition is prepared using a microfluidizer at a temperature of 0 to 70°C. In claim 1,
Contains 0.1 to 50 wt% of a sunscreen relative to the total weight of the cosmetic composition,
A water-in-oil type UV-blocking nanoemulsion cosmetic composition having an SPF of 10 to 60.