KR102695072B1 - A skin or hair cleansing and moisting composition, and a multifunctional all-in-one cosmetic comprising the same - Google Patents

Abstract

The present invention provides a skin or hair cleansing and moisturizing composition capable of alleviating skin or hair irritation through increasing skin moisturizing power, promoting skin vitality, and having an antioxidant effect by containing natural substances and functional ingredients, and a multifunctional all-in-one cosmetic comprising the same.

Description

{A skin or hair cleansing and moistening composition, and a multifunctional all-in-one cosmetic comprising the same}

The present invention relates to a skin or hair cleansing and moisturizing composition, and a multifunctional all-in-one cosmetic comprising the same.

Skin or hair cleansers are essential products used in daily life, and are used to remove contaminants such as dust, waste, oil, and sweat attached to the skin or hair, and to maintain the health and beauty of the skin or hair. These skin or hair cleansers generally contain surfactants as their main ingredients, and exert cleansing power by emulsifying or dissolving contaminants. However, the surfactants contained in these cleansers can break the natural moisture and oil balance of the skin or hair, damage the protective film of the skin or hair, and cause dry and vulnerable skin or hair, and this irritation can cause allergies or inflammation, which can have a negative effect on skin health in the long term.

Meanwhile, among skin lipids, lipids that are responsible for the skin barrier function are mainly composed of cholesterol, ceramides, and free fatty acids. Since the components that make up the skin barrier are composed of lipids, and the skin surface is covered with a sebum film, it has lipophilic properties and forms a strong skin lipid barrier, so it is known that it is very difficult for water-soluble active ingredients to penetrate the skin. Existing cleansers have tried to maintain moisture in the skin by applying moisturizing factors or physiologically active substances to the skin, but since the particles of the cosmetic composition that serve as a delivery medium for moisture or active substances have a structure that is vulnerable to external environmental changes, there is a limit to efficiently absorbing useful moisture and active substances into the skin, so it is not an easy task to maximize high moisturizing power and cleansing power while having low irritation.

Accordingly, there was a need for the development of an improved cleansing composition that could have low irritation, high moisturizing power, and high cleansing power, including a component that uses a liposome structure that has excellent affinity with skin tissue and can protect moisture, etc. and also release it in a sustained manner.

Republic of Korea Patent Registration No. 10-1168434 B1

The present invention provides a skin or hair cleansing and moisturizing composition capable of alleviating skin or hair irritation through increasing skin moisturizing power, promoting skin vitality, and having an antioxidant effect by containing natural substances and functional ingredients, and a multifunctional all-in-one cosmetic comprising the same.

According to one aspect of the present invention, a skin or hair cleansing and moisturizing composition comprising a surfactant, birch sap, French maritime pine bark extract, and ceramide NP liposome is provided.

The above ceramide NP liposome is manufactured by a method including a step of pressurizing ceramide NP at a pressure of 900 to 1200 bar, and may have an average particle size of 30 to 200 nm.

The surfactant may include sodium cocoyl isethionate, lauryl hydroxysultaine, and sodium lauroyl glutamate.

The sodium cocoyl isethionate may be included in an amount of 9 to 11% (w/w), the lauryl hydroxy sulphate may be included in an amount of 5 to 7.5% (w/w), and the sodium lauroyl glutamate may be included in an amount of 4.5 to 6% (w/w).

The birch sap may be included at 0.1 to 0.3% (w/w), the French maritime pine bark extract may be included at 0.005 to 0.015% (w/w), and the ceramide NP liposome may be included at 0.005 to 0.015% (w/w).

The above skin or hair cleansing and moisturizing composition may further include polyglyceryl-4 caprate, sodium chloride, glycerin, butylene glycol, centella asiatica extract, green tea seed oil, jojoba seed oil, and citric acid.

The polyglyceryl-4 caprate may be included at 2.6 to 3.3% (w/w), the sodium chloride may be included at 1.5 to 2.5% (w/w), the glycerin may be included at 1.8 to 2.5% (w/w), the butylene glycol may be included at 1 to 2% (w/w), the centella asiatica extract may be included at 0.05 to 0.15% (w/w), the green tea seed oil may be included at 0.005 to 0.015% (w/w), the jojoba seed oil may be included at 0.005 to 0.015% (w/w), and the citric acid may be included at 0.05 to 0.15% (w/w).

The above ceramide NP liposome can increase the skin's moisturizing power and reduce the rate of moisture loss after washing.

The above birch sap has a skin vitality enhancing effect due to the ionized minerals it contains, and the above French maritime pine bark extract can have an antioxidant effect.

According to another aspect of the present invention, an all-in-one cosmetic comprising the cleansing composition is provided.

The skin or hair cleansing and moisturizing composition according to the present invention not only has a high cleansing power for skin or hair and excellent foam durability, but also contains natural substances and functional ingredients such as birch sap, French maritime pine bark extract, and ceramide NP liposome, thereby increasing skin moisturizing power, promoting skin vitality, and providing a hypoallergenic all-in-one cleansing cosmetic by relieving skin or hair irritation through antioxidant action.

Hereinafter, a skin or hair cleansing and moisturizing composition according to a specific embodiment of the invention will be described in more detail.

Existing skin or hair cleansers can disrupt the natural moisture and oil balance of the skin or hair, damage the protective film of the skin or hair, and cause allergies or inflammation due to such irritation. In addition, the particles in the cleanser composition, which serve as a delivery medium for moisture or active substances, have a structure that is vulnerable to external environmental changes, so there is a limit to the efficient absorption of moisture and active substances useful to the skin.

Accordingly, the inventors of the present invention confirmed through experiments that an improved cleansing composition having low irritation, high moisturizing power, and high cleansing power can be manufactured using natural substances such as birch sap and French maritime pine bark extract and ceramide NP liposomes, and completed the invention.

According to one aspect of the present invention, a skin or hair cleansing and moisturizing composition comprising a surfactant, birch sap, French maritime pine bark extract, and ceramide NP liposome is provided.

The surfactant is not particularly limited, but may preferably include sodium cocoyl isethionate, lauryl hydroxysultaine, and sodium lauroyl glutamate.

The above sodium cocoyl isethionate is a surfactant extracted from coconut fatty acids. It is made by mixing a natural acid called isethionic acid and a fatty acid naturally occurring in coconut oil, and is a soft, skin-irritating surfactant that can remove excess oil without drying with stable, rich, and soft foam. It dissolves well at high temperatures of about 80 degrees and can form stable, soft foam when mixed with various raw materials, and is an EWG Grade 1 raw material.

The above Lauryl Hydroxysultaine is an amphoteric surfactant sold under the trade name Superfoam LH 45, and has the characteristics of creating soft foam and increasing the amount of foam. It is an EWG Grade 1 raw material that does not change activity depending on the pH value, improves the fluidity of the formulation, and can improve stability.

The above sodium lauroyl glutamate is the sodium salt of lauric acidamide of glutamic acid, a plant-based anionic surfactant. Since it is an amino acid with good skin affinity, it has the characteristics of being soft to use and less irritating, and it is used in weakly acidic cleansers as a cleansing ingredient that shows the same weak acidity as the pH of the skin, and it is an environmentally friendly surfactant with excellent moisturizing power and biodegradability.

The sodium cocoyl isethionate may be included in an amount of 9 to 11% (w/w) based on the total weight of the detergent composition, the lauryl hydroxy sulphate may be included in an amount of 5 to 7.5% (w/w), and the sodium lauroyl glutamate may be included in an amount of 4.5 to 6% (w/w).

The above ceramide NP liposome can increase the skin's moisturizing power and reduce the rate of moisture loss after washing.

Ceramide NP is a type of ceramide found in the keratin layer of skin or hair, and can play a role in maintaining moisture in the skin or hair, strengthening the protective barrier of the skin or hair, and soothing irritation of the skin or hair.

Meanwhile, most existing cleansers tried to maintain moisture in the skin by applying moisturizing factors to the skin, but since the particles in the cosmetic composition, which serve as delivery media for effective substances, have a structure that is vulnerable to external environmental changes, there were limitations in maintaining useful moisture and active substances in the skin for a long time.

Accordingly, in the present invention, the ceramide NP liposome structure has excellent affinity with skin tissue, and can protect moisture and effective ingredients and also release them in a sustained manner. Therefore, the liposome structure, which is the most suitable structure for effectively permeating moisture and effective physiologically active ingredients into the skin in a cosmetic composition, was introduced.

The above ceramide NP liposome is manufactured by a method including a step of pressurizing ceramide NP at a pressure of 900 to 1200 bar, and may have an average particle size of 30 to 200 nm.

The above ceramide NP liposome is ceramide NP treated as liposome, and liposome is a particle with a biocompatible structure, and can play a role in increasing the absorption of ceramide NP, increasing the moisture retention capacity of skin or hair, and slowing down the moisture loss rate of skin or hair. The above ceramide NP liposome has a particle size of 30 to 200 nm, can penetrate well into the stratum corneum of the skin, and has high compatibility with the skin due to the amphoteric structure of the liposome. In addition, the above ceramide NP liposome is stably maintained even under external environmental changes such as pH, temperature, and electrolyte, and does not cause irritation or allergic reaction to the skin.

The method for manufacturing ceramide NP into ceramide NP liposome is as follows.

After preparing ceramide NP and a liposome forming agent necessary for liposome formation, these components are dissolved in an appropriate solvent to make a uniform solution. The solution is placed in a feed tank of an ultra-high pressure emulsifier, pressurized to a high pressure of 900 to 1,200 bar, and injected into a slot. The solution passing through the slot has particles deagglomerated by the shear force and impact cavitation generated in the chamber, forming ceramide NP liposomes. After the emulsification process is completed, the solution is centrifuged to recover the liposomes. The liposome forming agent may be one of lecithin, phospholipid, cholesterol, stearyl alcohol, and polyoxyethylene sorbitan monostearate.

The above ceramide NP liposome may be included in an amount of 0.005 to 0.015% (w/w) based on the total weight of the cleansing composition, but is not limited thereto.

The above birch sap has a skin vitality enhancing effect due to the ionized minerals it contains, and the above French maritime pine bark extract can have an antioxidant effect.

Birch sap is a natural sap collected from birch tree trunks in the spring, and is rich in nutrients such as vitamins, minerals, amino acids, and polyphenols. In particular, birch sap contains a large amount of ionized minerals such as calcium, potassium, and manganese, and these abundant minerals can promote skin vitality.

French maritime pine bark extract is a natural extract extracted from the bark of maritime pine trees growing along the French coast, and contains a large amount of antioxidant ingredients such as polyphenols, proanthocyanidins, catechins, and epicatechins. In particular, French maritime pine bark extract contains a powerful antioxidant called OPC (Oligomeric Proanthocyanidins), which has an antioxidant power 20 times that of vitamin C and 50 times that of vitamin E, and protects collagen and elastin in the skin or hair, protects the skin or hair from UV rays, promotes blood circulation in the skin or hair, and plays a role in increasing the elasticity and shine of the skin or hair.

The birch sap may be included in an amount of 0.1 to 0.3% (w/w) based on the total weight of the detergent composition, but is not limited thereto.

The above French maritime pine bark extract may be included in an amount of 0.005 to 0.015% (w/w) based on the total weight of the detergent composition, but is not limited thereto.

The above skin or hair cleansing and moisturizing composition may further contain, in addition to the above-described surfactant, birch sap, French maritime pine bark extract, and ceramide NP liposome, polyglyceryl-4 caprate, sodium chloride, glycerin, butylene glycol, centella asiatica extract, green tea extract, green tea seed oil, jojoba seed oil, hydrolyzed silk, lauryllactate, hydrogenated lecithin, guar hydroxypropyltrimonium chloride, propanediol, caprylhydroxamic acid, hydroxyacetophenone, 1,2-hexanediol, ethylhexylglycerin, and citric acid.

The above guar hydroxypropyl trimonium chloride is a plant-derived cleansing ingredient that has rich foam and strong cleansing power, is less irritating to the skin, is highly biodegradable, and can play a role in making hair soft and preventing static electricity, thereby keeping hair flexible.

The above sodium chloride can play a role in increasing the viscosity of the detergent and increasing the stability of the foam.

The above citric acid is extracted from fruits and used as a pH regulator, and plays a role in maintaining stability by controlling the acidity level of the product.

Among the above ingredients, those that function as moisturizers include polyglyceryl-4 caprate, glycerin, butylene glycol, centella asiatica extract, green tea extract, green tea seed oil, jojoba seed oil, hydrolyzed silk, lauryllactate, hydrogenated lecithin, and propanediol.

The above polyglyceryl-4 caprate is a plant-derived moisturizer that can provide moisture to the skin, maintain oil-water balance, and give the skin a soft and moist feeling.

The above glycerin is a plant-derived moisturizer that can provide moisture to the skin and maintain oil-water balance.

The above butylene glycol is a petroleum-derived moisturizer that can provide moisture to the skin, maintain oil-water balance, and give the skin a moist and smooth feeling.

The above purslane extract is a natural moisturizer extracted from purslane. It provides moisture to the skin and has skin-soothing and anti-inflammatory effects, so it can soothe the skin and help with sensitive skin.

The above green tea extract and green tea seed oil are natural moisturizers extracted from green tea and can provide moisture to the skin and provide antioxidant effects.

The above jojoba seed oil is a natural moisturizer extracted from jojoba seeds. It provides moisture to the skin, maintains oil-water balance, and has high skin similarity, making it suitable for sensitive skin.

The above hydrolyzed silk is a natural moisturizer extracted from silk, which can provide moisture to the skin, increase flexibility, and give the skin a moist and soft feeling.

The above lauryllactate is a plant-derived moisturizer that can be used to provide moisture to the skin, maintain oil-water balance, improve fragrance, and provide a soft skin feel.

The above hydrogenated lecithin and propanediol provide moisture to the skin and help maintain oil-water balance.

The polyglyceryl-4-caprate may be included in an amount of 2.6 to 3.3% (w/w) based on the total weight of the detergent composition, the sodium chloride may be included in an amount of 1.5 to 2.5% (w/w), the glycerin may be included in an amount of 1.8 to 2.5% (w/w), the butylene glycol may be included in an amount of 1 to 2% (w/w), the centella asiatica extract may be included in an amount of 0.05 to 0.15% (w/w), the green tea seed oil may be included in an amount of 0.005 to 0.015% (w/w), the jojoba seed oil may be included in an amount of 0.005 to 0.015% (w/w), and the citric acid may be included in an amount of 0.05 to 0.15% (w/w).

The skin or hair cleansing and moisturizing composition of the present invention may appropriately contain additional moisturizers, cationic polymers, polysaccharides, polypeptides, pearlizing agents, solvents, liquid crystal forming agents, pigments, fragrances, propellants, chelating agents such as edetate or citrate, pH adjusters, preservatives, antidandruff agents, etc. Examples of the cationic polymer include cationized cellulose, Japanese cationic polymer, etc., and examples of the antidandruff agent include zinc pyrithione, pyroctone olamine, etc.

The formulation of the skin or hair cleansing and moisturizing composition of the present invention is not particularly limited, and may be any formulation such as liquid, foam, paste, cream, solid, or powder. It is preferably liquid, paste, or cream, and more preferably liquid. In the case of liquid, it is preferable to use purified water as a liquid base, and the content of purified water is preferably 60 to 70% (w/w) of the total composition.

It is preferable to adjust the pH of the skin or hair cleansing and moisturizing composition of the present invention to 4 to 10 at 25°C.

The skin or hair cleansing and moisturizing composition of the present invention can be prepared according to a conventional method and can be used as a body cleanser such as a hair cleanser, a body cleanser, a facial cleanser, or a hand cleanser.

According to another aspect of the present invention, an all-in-one cleansing cosmetic comprising the cleansing composition is provided.

The skin or hair cleansing and moisturizing composition according to the present invention not only has high cleansing power and excellent foaming properties for the skin or hair, but also contains natural substances and functional ingredients such as birch sap, French maritime pine bark extract, and ceramide NP liposome, thereby increasing skin moisturizing power, promoting skin vitality, and having an antioxidant effect, thereby alleviating skin or hair irritation.

Hereinafter, preferred embodiments of the present invention will be described in detail. However, these embodiments are only intended to illustrate the present invention, and the scope of the present invention is not to be construed as being limited by these embodiments.

Example 1

Ceramide NP and cholesterol, a liposome forming agent, were placed in a reaction vessel and mixed, and ethanol was added as a solvent to the mixture to promote dissolution and mixing of the raw materials, thereby preparing a solution. The solution was placed in the feed tank of an ultra-high pressure emulsifier, pressurized to a high pressure of 1000 bar, and injected into a slot of 100 μm or less. The solution passing through the slot deagglomerated particles by the shear force and impact cavitation generated in the chamber, forming ceramide NP liposomes of 100 nm or less. Thereafter, the solution was placed in a centrifuge, centrifuged at 10,000 rpm for 10 minutes, and ceramide NP liposomes were separated and purified from the solution to confirm the final material, stored in an appropriate container, and a stabilizer was added to stabilize the ceramide NP liposomes.

The raw material ingredients including the ceramide NP liposome manufactured above were mixed as shown in Table 1 and a detergent composition was manufactured according to a general liquid detergent manufacturing method.

ingredient % (w/w) Purified water 66.6790 Sodium cocoyl isethionate 10.0000 Lauryl hydroxysultaine 6.0000 Sodium lauroyl glutamate 5.0000 Polyglyceryl-4-caprate 3.0000 Sodium chloride 2.0000 glycerin 2.0000 Butylene glycol 1.5000 Birch sap 0.2000 Centella asiatica extract 0.1000 French maritime pine bark extract 0.0100 Green tea extract 0.0005 Green tea seed oil 0.0100 Jojoba seed oil 0.0100 Ceramide NP liposome 0.0100 Hydrolyzed Silk 0.0005 Lauryl lactate 0.0100 Hydrogenated Lecithin 0.0100 Guarhydroxypropyltrimonium chloride 0.1000 Propanediol 0.5700 Caprylhydroxamic acid 0.0300 Hydroxyacetophenone 0.4500 1,2-Hexanediol 0.1000 Ethylhexylglycerin 0.0100 Citric acid 0.1000 spices 0.1000

Comparative Example 1

A detergent composition was prepared by mixing the raw materials as shown in Table 2 and using a general liquid detergent preparation method.

ingredient % (w/w) Purified water 66.8990 Sodium lauryl sulfate 10.0000 Cocoamidopropyl Betaine 6.0000 Sodium lauroyl glutamate 5.0000 Polyglyceryl-4-caprate 3.0000 Sodium chloride 2.0000 glycerin 2.0000 Butylene glycol 1.5000 Centella asiatica extract 0.1000 Green tea extract 0.0005 Green tea seed oil 0.0100 Jojoba seed oil 0.0100 Hydrolyzed Silk 0.0005 Lauryl lactate 0.0100 Hydrogenated Lecithin 0.0100 Guarhydroxypropyltrimonium chloride 0.1000 Propanediol 0.5700 Caprylhydroxamic acid 0.0300 Hydroxyacetophenone 0.4500 1,2-Hexanediol 0.1000 Ethylhexylglycerin 0.0100 Citric acid 0.1000 spices 0.1000

Test Example 1: Moisturizing power and moisture retention test

The moisturizing power and moisture retention capacity of the detergent composition manufactured in Example 1 (hereinafter, “Example detergent”) and the detergent composition manufactured in Comparative Example 1 (hereinafter, “Comparative detergent”) were measured as follows.

The example cleanser and the comparative example cleanser were each applied to 10 subjects with dry skin (randomly recruited women aged 27 to 45, blinded). A total of 20 subjects used the cleanser every morning and evening for 4 weeks.

The skin moisture content before and after application was measured using a Corneometer CM 825 from Courage + Khazaka electronic GmbH, Germany, and the difference in skin moisture content before and after application was compared. The results are shown in Table 3.

Skin moisture before application Skin moisture after application Skin moisture content increase rate (%) Example Detergent 25.6 ± 3.2 38.4 ± 4.1 49.8 ± 6.5 Comparative example detergent 26.2 ± 2.9 31.8 ± 3.7 21.4 ± 5.3

As can be seen in Table 3, the example cleanser according to the present invention had a higher rate of increase in skin moisture content than the comparative example cleanser, which shows that the cleanser according to the present invention has an excellent ability to replenish and maintain moisture in the skin.

Test Example 2: Hypoallergenicity Test

The skin irritation of the above example cleansers and comparative example cleansers was evaluated through usage tests.

The example cleanser according to the present invention and the comparative example cleanser were applied to 20 subjects with sensitive skin (randomly recruited women aged 20 to 45, blinded measurement). A total of 40 subjects used the cleanser every morning and evening for 6 weeks. The skin irritation before and after application was measured with Erythema Meter MX 18. The difference in skin irritation before and after application was compared. The results were as shown in Table 4.

Skin irritation before application Skin irritation after application Skin irritation rate increase (%) Example Detergent 0.8 ± 0.1 1.2 ± 0.2 50.0 ± 12.5 Comparative example detergent 0.9 ± 0.1 2.7 ± 0.3 200.0 ± 25.0

As can be seen in Table 4, the example cleanser according to the present invention showed a lower rate of increase in skin irritation compared to the comparative example cleanser. This indicates that the example cleanser according to the present invention minimizes skin irritation.

Test Example 3: Skin Vitality Enhancement Effect Test

The example cleanser according to the present invention and the comparative example cleanser were applied to 10 subjects with skin aging symptoms (randomly recruited women aged 27 to 45, blinded measurement). A total of 20 subjects used the cleanser every morning and evening for 6 weeks.

Skin vitality before and after application was measured using Skin Power Meter SPM 100, and the difference in skin vitality before and after application was compared and shown in Table 5.

Skin vitality before application Skin vitality after application Increase in skin vitality (%) Example Detergent 12.6 ± 1.8 18.4 ± 2.1 46.0 ± 5.6 Comparative example detergent 13.2 ± 1.7 15.8 ± 1.9 19.7 ± 4.2

As can be seen in Table 5, the example cleanser according to the present invention showed a higher rate of increase in skin vitality than the comparative example cleanser. This shows that the cleanser according to the present invention promotes energy production in the skin and improves skin vitality.

As shown in the results of the above experimental examples, it can be seen that the skin or hair cleansing and moisturizing composition according to the present invention contains natural substances and functional ingredients such as birch sap, French maritime pine bark extract, and ceramide NP liposome, and thus can provide a hypoallergenic all-in-one cleansing cosmetic by alleviating irritation of the skin or hair through increasing skin moisturizing power, promoting skin vitality, and having an antioxidant effect.

While the specific parts of the present invention have been described in detail above, it will be apparent to those skilled in the art that such specific descriptions are merely preferred embodiments and that the scope of the present invention is not limited thereby. Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

Claims (6)

A surfactant, birch sap, French maritime pine bark extract and ceramide NP liposome, wherein the ceramide NP liposome is prepared by a method including a step of pressurizing ceramide NP at a pressure of 900 to 1200 bar, and has an average particle size of 30 nm.
The birch sap is contained at 0.1 to 0.3% (w/w), the French maritime pine bark extract is contained at 0.005 to 0.015% (w/w), and the ceramide NP liposome is contained at 0.005 to 0.015% (w/w).
The surfactant comprises sodium cocoyl isethionate, lauryl hydroxy sultaine, and sodium lauroyl glutamate, wherein the sodium cocoyl isethionate is contained in an amount of 9 to 11% (w/w), the lauryl hydroxy sultaine is contained in an amount of 5 to 7.5% (w/w), and the sodium lauroyl glutamate is contained in an amount of 4.5 to 6% (w/w).
Further comprising polyglyceryl-4 caprate, sodium chloride, glycerin, butylene glycol, centella asiatica extract, green tea seed oil, jojoba seed oil, and citric acid, wherein
The polyglyceryl-4 caprate is contained at 2.6 to 3.3% (w/w), the sodium chloride is contained at 1.5 to 2.5% (w/w), the glycerin is contained at 1.8 to 2.5% (w/w), the butylene glycol is contained at 1 to 2% (w/w), the centella asiatica extract is contained at 0.05 to 0.15% (w/w), the green tea seed oil is contained at 0.005 to 0.015% (w/w), the jojoba seed oil is contained at 0.005 to 0.015% (w/w), and the citric acid is contained at 0.05 to 0.15% (w/w), and
A skin or hair cleansing and moisturizing composition further comprising hydrolyzed silk, lauryllactate, hydrogenated lecithin, guar hydroxypropyltrimonium chloride and propanediol.
delete delete delete In the first paragraph,
A skin or hair cleansing and moisturizing composition, wherein the ceramide NP liposome increases the skin's moisturizing power and slows down the rate of moisture loss after cleansing, the birch sap promotes skin vitality through the ionized minerals contained therein, and the French maritime pine bark extract has an antioxidant effect.
An all-in-one cosmetic comprising a composition according to any one of claims 1 and 5.