KR100787784B1 - Cosmetic composition for protecting lip comprising granules - Google Patents

Abstract

A cosmetic composition for protecting lip is provided to moisturize the lip, improve wrinkles of the lip and improve the external appearance by comprising granules prepared by dispersing ascorbic acid with excellent wrinkle improving effect in jojoba ester with excellent skin wall effect. A cosmetic composition for protecting lip comprises 0.001-10.0 wt.% of spherical granules including a lip protecting active ingredient which is selected from the group consisting of jojoba ester, ascorbic acid, tocopheryl acetate, ascorbyl palmitate, retinyl palmitate, beta-carotene, coenzyme Q-10, ceramide and cholesterol and is stabilized by cyclodextrin, wherein the granule has a melting point of 40-60 deg.C and an average particle diameter of 300-1,700 micrometers.

Description

Cosmetic composition for lip protection containing granules {Cosmetic Composition for Protecting lip Comprising Granules}

The present invention relates to a cosmetic composition for protecting the lips containing the granules.

Lip cosmetics are used for the purpose of protecting the lips by giving a color effect to the lips and at the same time can be divided into formulations, such as lipstick, lip gloss, lip balm, lip cream, lip treatment.

Prerequisites for such lip cosmetics include: 1) no irritation and harmlessness to the lips, 2) no unpleasant taste or smell, 3) smooth burying, no seepage, and 4) maintenance of necessary time Keep stick shape without being cut, deformed or softened during storage or use. Fifth, there should be no change over time such as sweating, sweating, etc. Sixth, maintain attractive appearance and no color change.

In addition, various studies have been conducted to improve the quality of cosmetics for lips. First, this study is to research the pigment dispersion base and to express the lips beautifully using highly purified pigments to express the beautiful lips by expressing the colors. Second, research is being conducted to protect the lips from external environmental influences. Third, research is being conducted on various substrates to make the lip line look beautiful without smearing or clumping.

If you describe the characteristics of the general cosmetic formulations for the lips can be divided into several as follows.

First, there is a wax of a solid component that maintains the appearance form by increasing the hardness. Commonly used waxes include candelillanab, ceresin, carnauba wax, paraffin, wax, braze, beeswax, and microcrystalline lead, and the higher the content of these solids, the higher the hardness of the stick, the harder the feeling of use. The heavier the applicability, the lower the amount, the better the applicability, but the stability of the high temperature and less easily crushed, the amount of lipstick is smeared more than evenly applied to the lips lip smear phenomenon occurs.

Second, there is a liquid oily component having the largest proportion of the cosmetic composition for lips. These oils include castor oil, jojoba oil, squalane, lanolin, lanolin derivatives, oils derived from animals and plants, synthetic ester oils, silicone oils, and the like. It acts as an influential factor. For example, lanolin has excellent moisturizing properties and adhesion, which is commonly used in lipsticks, but lanolin itself is easily oxidized, which may cause discoloration and discoloration, burden on the lips, and allergy to lanolin has recently been reported. have.

Third, there is a pigment component that determines the color. These pigments are largely divided into organic pigments and inorganic pigments, and organic pigments generally have solubility. These dyes are rarely used because they may stain on the lips, but the color of organic pigments is diverse and Therefore, the dye etc. which made these dyes into the insoluble lake are used. In addition, inorganic pigments such as iron oxide are being used, depending on the type and content of these pigments brings a lot of physical properties.

Fourth, it is made of various additives such as antioxidants, preservatives, fragrances, influence ingredients. In addition, a sunscreen and a special influence ingredient may be blended in order to protect the lips from ultraviolet rays and to prevent roughening.

In the case of lips applied with lip cosmetics, the lips are continuously contracted and expanded, and the most moving parts of the body are also exposed to the outside and are always exposed to environmental factors such as ultraviolet rays and pollutants in the air and dry climate. It is easily stimulated. Unlike the general skin structure, the skin structure of the lips has no sebaceous membrane and the stratum corneum is formed very thin, so the natural moisturizing factor and the amount of water are absolutely insufficient and the rate of water evaporation is extremely fast. Due to these characteristics, the lips are very weak in their defense against external stimuli and are severely damaged. Accordingly, it can be seen that the cosmetic for lips should have a more thorough protection and moisturizing effect unlike other cosmetics.

Until now, the following methods have been used to moisturize the lips. The first is water or hydrophilic components. In particular, water should be particularly careful in the process of volatilization during the process, and if water is simply mixed for the moisturizing effect, water may be volatilized to promote dryness of the lips or shrinkage of the contents. .

Second, lanolin, lanolin derivatives, cholesterol derivatives, fatty acid and ester-based compositions including alcohol groups are used for lip protection and moisturizing purposes. However, as mentioned above, allergies have been reported in lanolin and lanolin derivatives, and are currently in limited use. In addition, in the case of cholesterol derivatives in consideration of the moisturizing effect 5% or more has a disadvantage in that the feeling of use is sticky and heavy.

As with the skin, wrinkles develop on the lips with age. This is due to structural changes deep within the skin that cause dermal degradation, ie loss of activity, within the skin. Therefore, not only wrinkles, but also lose their original firmness and gradually loosen the lips swelling occurs. Therefore, the general consumer wants to add the protection and moisturizing function for the lips and the function to improve the wrinkles on the commercially available lipstick.

Accordingly, the present inventors have diligently researched to develop a material capable of protecting the lips by maintaining the moisture of the lips and improving wrinkles. As a result, the inventors disperse ascorbic acid having excellent wrinkle improvement effect in jojoba ester having excellent skin barrier effect. The present invention was completed by confirming that the granules were prepared and included in the lip cosmetics to enhance the appearance value of the product together with the lip moisturizing and wrinkle improving effects.

Accordingly, it is an object of the present invention to provide a cosmetic composition for protecting lips comprising spherical granules comprising a jojoba ester and an active ingredient.

Other objects and advantages of the present invention will become apparent from the following detailed description and claims.

According to an aspect of the present invention, the present invention provides a cosmetic composition for protecting a lip containing spherical granules comprising a jojoba ester and an active ingredient.

The inventors of the present invention while conducting research to impart a moisturizing and anti-wrinkle effect on the cosmetic composition for protecting the lips, using a granule containing ascorbic acid having an anti-wrinkle effect in the jojoba ester excellent in skin barrier protection effect It was confirmed that a clear lip moisturizing and lip wrinkle improvement effect was produced when preparing the.

The present invention relates to a cosmetic composition for lip protection containing spherical granules. More specifically, the cosmetic composition for protecting the lips of the present invention contains spherical granules prepared by including jojoba ester, cyclodextrin and ascorbic acid, which gives the lips an excellent moisturizing effect and wrinkle improvement effect, and the unique granule color and It is a spherical shape that reminds you of certain fruits (kiwi, strawberries, etc.) or food appearance (ice cream, yoghurt, etc.) to increase the value of the product. Effects of the present invention can be applied to all of the lip gloss, lip balm, lip cream and the like applied to the lips.

Hereinafter, the spherical granules contained in the cosmetic composition for lip protection of the present invention will be described in more detail.

Spherical granules are a kind of scrubs that are generally used for exfoliation. Soft granules are used for the purpose of improving the feeling of use and stabilizing the active ingredients in essences and emulsion formulations of hard and basic types used in face washes and body cleansers. It is largely divided. Melting points of 80 ° C or more are common in the hard type, and 30-60 ° C in the soft type.

In addition, depending on the source of the granule material, it may be divided into synthetic and natural, and depending on the degree of solubility of the final granules, it is divided into water solubility and usefulness or poorly soluble.

Granules can be divided into large, medium and small sizes. The size is generally 1300-1700 m, the middle 800-1200 m, and the small 300-700 m. If the granules are too small, they may enter into deep skin wrinkles or irritate the eyes, and at sizes above 1300-1700 μm, the granules may not break evenly when applied to the lips, and the granules may remain dirty on the lips. There are disadvantages.

The granules selected from the cosmetic composition of the present invention are natural based on natural jojoba esters in order to minimize the burden on the lips and to enhance the moisturizing effect, and have been selected to be useful due to the characteristics of the cosmetics for the lips. In particular, jojoba ester is similar to skin sebum and has high skin absorption ability, less stickiness and good feeling, and it is excellent in softening the skin with a large amount of moisturizing ingredient along with hydrating action.

The granules of the present invention preferably have a melting point in the soft type of 40-60 ° C. and an average particle size of 300-1700 μm for good application on the lips and excellent carrier role and stabilization of the active ingredient.

The granules included in the cosmetic composition for lip protection of the present invention include an active ingredient that can impart a useful effect on the lips, for example, a moisturizing effect or an antiwrinkle effect. The active ingredient includes ascorbic acid, tocopheryl acetate, ascorbyl palmitate, retinyl palmitate, beta-carotene, coenzyme Q-10, ceramide, cholesterol and various vegetable extracts, specific flavors, and the like. Ascorbic acid can be used.

Among the oil-soluble active substances contained in the granules, ascorbic acid is mixed with cyclodextrin, lyophilized, and then dispersed in jojoba ester to prepare granules by dry spraying.

However, in the case of using tocopherol, tocopheryl acetate, ceramide, cholesterol and specific fragrance as the active substance, granules can be prepared by dry spray method by directly dispersing with jojoba ester, without mixing with cyclodextrin. The process can be simplified.

According to a preferred embodiment of the present invention, the granules of the present invention are prepared in a form of a predetermined size by preparing cyclodextrin and ascorbic acid in a stable powder state by lyophilization technique, and then dispersed in jojoba ester. The technique of lyophilization is a method of obtaining a stable active substance by removing water by sublimating ice by freezing the active substance in an aqueous solution and then depressurizing it. In particular, the freeze drying method is very useful as a drying method such as ascorbic acid, which is weak to heat because of low temperature operation. First, cyclodextrin, ascorbic acid and water are mixed uniformly, and then water is completely removed by freeze-drying to obtain a mixture consisting of cyclodextrin and ascorbic acid only. Long-term storage at is also possible.

The granules thus prepared are weak in heat or sunlight when injecting ascorbic acid alone, thereby improving the disadvantage of easily losing activity in the formulation, and improving the quality of the product with stability and rapid absorption in the formulation by jojoba ester.

The content of the active substance, preferably ascorbic acid, incorporated into the granules is 1-20% by weight, preferably 5-10% by weight, based on the total weight of the granules.

In addition, the granules containing the active ingredient is preferably included in 0.001-10.0% by weight, more preferably 0.5-2.0% by weight relative to the total weight of the cosmetic composition for lips. When the amount of granules contained in the cosmetic for lips exceeds 10.0% by weight, the feeling of use decreases and the appearance value of the product decreases, and when the content of the granules is less than 0.001% by weight, the effects such as moisturizing effect and wrinkle improvement are weak. Do.

The granules containing ascorbic acid among the active ingredients used in the cosmetic composition of the present invention will be described in more detail through the structure and components of the skin.

The skin consists of the epidermis, the dermis and the subcutaneous fat, and the epidermis is composed of the stratum corneum, granule layer, pore layer and basal layer. The function of the stratum corneum, the uppermost layer of the skin barrier that acts as a protective barrier for the human body, (1) acts as a barrier that inhibits the loss of moisture and electrolytes out of the skin, preventing the epidermis from drying, and (2) the epidermis is normal biochemical metabolism. It provides an environment to protect the human body from (3) external physical damage and chemicals, and (4) prevents the invasion of bacteria, fungi and viruses into the skin.

The stratum corneum consists of keratinocytes and keratinocyte layers, and the keratinocyte lipids that play a crucial role in the role of the skin barrier are ceramide (45%), cholesterol (25%) and fatty acids (15%). It consists of.

 The dermis is a connective tissue under the epidermis. The dermis is not as tightly packed with cells as the epidermis, but rather has a lot of extracellular space, part of which is filled by the network of macromolecules called extracellular matrix. In the dermis, there are histamine that causes an immediate allergic reaction, mast cells that produce serotonin (mast cells), and fibroblasts that synthesize and secrete an extracellular matrix. The components that make up the extracellular matrix are glycosaminoglycans or acidic mucopolysaccharides and fibrous proteins. There are several kinds of glycosaminoglycans, which differ in the type and number of sugar groups constituting the sugar, and the position and number of sulfate groups, and the skin contains a large amount of hyaluronic acid and dermatansulfate. These glycosaminoglycans are usually present in the form of proteoglycans in combination with proteins, and have a gel-like structure that retains a large amount of water, and has a structure filled with fibrous proteins therein. Water in the gel acts to expand nutrients, metabolites and hormones from blood vessels to cells in tissues. Fibrous proteins include fibronectin and laminin, which are involved in adhesion with collagen, elastin, and the like in terms of structure. Collagen is the main protein of the extracellular matrix and works to maintain the shape of the tissue. Elastin is believed to contribute to the elasticity of the tissue by forming crosslinks with each other. Due to this structure, the dermis greatly affects the elasticity and tension of the skin. The dermis contains blood vessels, nerves, hair, hair roots (brain muscles), sweat glands, and sebaceous glands.

In particular, collagen and glycosaminoglycans are substances contained in the dermal components of the skin and have a high binding force with moisture. Children's skin collagen has a strong binding force with moisture, so healthy skin naturally has a lot of moisture, and there is no tension and wrinkles.

Over time, the part of the cell that is conjugated to the extracellular matrix becomes weaker and the density of its structure decreases with the total number of cells interacting. The three-dimensional structure of the tissue is also gradually degraded and the ability of the fibroblasts to synthesize and secrete extracellular matrix is also reduced. In other words, the skin loses its elasticity.

The most representative role of ascorbic acid used in the present invention is to be importantly involved in the biosynthesis of collagen to promote the elasticity and swelling of the dermis.

Therefore, the moisturizing effect on the lips by using granules containing ascorbic acid, which stimulates the synthesis of collagen involved in the elasticity of the dermis in the skin, in the skin barrier of the outermost layer of the skin, the stratum corneum and the jojoba ester, which is effective in maintaining moisture. It has been invented a cosmetic composition for protecting the lips effective in improving lip wrinkles by providing a gradual enhancement of elasticity.

In addition, the present inventors have studied that ascorbic acid is mixed with cyclodextrin rather than alone to prepare a stable freeze-dried mixture, and then mixed with easy jojoba esters having good absorption in the skin, It was found that it is more effective for moisturizing the lips and improving wrinkles by rapid absorption without reducing the active force of corvinic acid.

In addition, the cosmetic composition for protecting the lip of the present invention may be reminiscent of the appearance of certain fruits (kiwi, strawberries, etc.) or foods (ice cream, yoghurt, etc.) in the shape and color of spherical granules, thereby increasing the value of the product. For example, for the kiwi shape, black granules are used for the green-colored base, and for the strawberry shape, black or brown granules are used for the red-colored base. In addition, various color combinations can be reminiscent of fruits and foods.

Lip cosmetic composition of the present invention exhibits the use of lip protection through lip moisturizing enhancement and wrinkle improvement. Throughout the present specification, the term 'lip protection' means to protect the lips by improving the moisturizing of the lips and improving the condition of the lips through suppression of wrinkle formation of the lips and improvement of the generated wrinkles.

According to a preferred embodiment of the present invention, the lip protection cosmetics containing granules prepared by dispersing and drying ascorbic acid and cyclodextrin in jojoba esters are excellent in improving the lip moisturizing, improving lip roughness and improving lip wrinkle ( Reference: Experimental Example 1 and Table 4, Experimental Example 2 and Table 5), and also excellent response to the use of the product (Reference: Experimental Example 3 and Table 6).

Ingredients included in the cosmetic composition for lip protection of the present invention as an active ingredient include ingredients commonly used in cosmetic compositions in addition to the active ingredients, for example, conventional auxiliary agents such as antioxidants, stabilizers, solubilizers, vitamins, pigments and flavorings. And carriers.

Lip cosmetic composition of the present invention may be prepared in any formulation commonly prepared in the art, for example, it may be formulated in lip gloss, lip balm, lip cream, lip treatment and lipstick, etc., but is not limited thereto. It is not.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are only for illustrating the present invention in more detail, it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples in accordance with the gist of the present invention. .

Preparation Example 1 Preparation of Granules Containing Cyclodextrin, Ascorbic Acid and Jojoba Ester

To prepare granules, cyclodextrin / ascorbic acid powder was prepared by a method of freeze drying in which a uniform cyclodextrin and ascorbic acid mixture was dried at a low temperature of −10 ° C. to −30 ° C. in a composition of Table 1 below.

The cyclodextrin / ascorbic acid powder obtained in the composition of Table 1 was then uniformly dispersed by heating to 50 ° C. to 70 ° C. with jojoba ester, as shown in Table 2. Depending on the purpose of the formulation, the combination of pigments may be necessary. This mixture was placed in a dry sprayer to obtain granules having a particle size of 300 to 1700 μm.

ingredient Content (% by weight) Cyclodextrin 10 Ascorbic acid 15 Purified water to 100

ingredient Content (% by weight) Jojoba ester to 100 Cyclodextrin / ascorbic acid powder of Table 1 10 Pigment a very small amount

Preparation Example 2 Preparation of Lip Cosmetics Containing Granules

Lip cosmetics containing the spherical granules of the present invention (Examples) and obtained cosmetics without the spherical granules (comparative examples) were prepared in the compositions shown in Table 3 below.

Prize Ingredient Name Example Content (% by weight) Comparative example content (% by weight) A Hydrogenated Polyisobutene to 100.0 to 100.0 Dextrin palmitate 2.0 2.0 Microcrystalline Lead 1.0 1.0 Candelilla lead 2.0 2.0 Petrolatum 10.0 10.0 Octyldodecanol 10.0 10.0 Phenyltrimethicone 3.0 3.0 Diisostearyl maleate 10.0 10.0 Polyglyceryl-2 Triisostearate 20.0 20.0 antiseptic a very small amount a very small amount B Pigment a very small amount a very small amount C Granules (Manufacturing Example 1) 1.0 - Jojoba ester - 1.0 D incense a very small amount a very small amount

* Manufacturing process: A phase is weighed and mixed uniformly at 85 ℃. After adding B phase and disperse | distributing uniformly, it cools to 50 degreeC and introduces and mixes C phase. Add phase D, mix for a short time, and fill the lip gloss container.

Experimental Example 1 Comparison of Use Effect

Forty females in their 20s and 40s were asked to use the lip gloss prepared by two prescriptions each day for 4 weeks every day for 20 weeks, and carefully observed the lips before and after use. It evaluated on the basis.

Clinical trial results Evaluation item Example Comparative example Moisturizing effect 4.2 3.3 Lip wrinkle improvement 4.0 2.8 Lip Roughness Improvement 3.8 3.1 No lip skin irritation 3.7 3.5 Application 3.9 3.3 Average 3.92 3.20

Evaluation criteria: Very good-5, Good-4, Moderate-3, Somewhat dissatisfied-2, Very dissatisfied-1

Looking at the results of the clinical experiment of Table 4, it can be seen that the satisfaction of the subjects with respect to the lip cosmetics of the Example was very high as compared to the comparative example as a whole. In particular, the cosmetic composition of the Example had a large score difference in moisturizing effect, lip wrinkle improvement, lip roughness improvement.

Experimental Example 2 Moisture Effect Measurement (Corneometer)

In order to confirm the effect objectively with the subjective evaluation in the clinical experiment of Experimental Example 1 Corneometer CM820PC (Courage + Khazaka, Germany) and Tewameter TM 210 (Courage + Khazaka, Germany) was used to measure the moisturizing effect of the lips .

The corneometer was used to quantify the moisture content of the skin from 0 to 150 with the change of electrical conductivity according to the epidermal moisture content, and the Tewameter was used to measure the transdermal loss amount (TEWL), that is, the epidermal water loss.

Before applying the test substance, the electrical conductivity of the lips was measured, and the lip cosmetics of Examples, Comparative Examples 1 and 2 were applied twice a day for 4 weeks to measure the electrical conductivity and TEWL of the lips after 2 and 4 weeks. It was.

division Example Comparative example Electrical conductivity Before the test 25.66 25.80 after 2 weeks 37.75 26.94 4 weeks later 44.32 28.39 Water loss (g / ㎡ / h) Before the test 82.18 80.06 after 2 weeks 79.14 81.37 4 weeks later 75.25 81.26

Looking at the test results of Table 5, as in the subjective clinical test results of Experimental Example 1, it was confirmed by the objective data that the cosmetics containing the granules of the jojoba ester base granules were superior to the comparative cosmetics.

Experimental Example 3 investigation of the response of the product

The subjects who participated in the comparative experiments on the use effect, namely Experimental Examples 1 and 2, examined the response to the appearance of the formulation and the subjective opinion on the product.

Item Example Comparative example Responsiveness Very high usually

Looking at the results of Table 6, it can be seen that the response to the cosmetic formulation containing granules is formed very high. Most of the subjects found that the lip gloss containing granules were easily associated with fruits and foods, which resulted in a higher value of the granule-containing products than the conventional granules.

As described in detail above, the present invention provides a cosmetic composition for lip protection containing spherical granules made of jojoba ester and ascorbic acid. The cosmetic composition for lip protection of the present invention imparts a moisturizing effect and an improvement of lip wrinkles, and is reminiscent of a specific fruit (kiwi, strawberry) or the appearance of food (ice cream, yogurt, etc.) due to the unique granule color and spherical shape. Increase the value of

Having described the specific part of the present invention in detail, it is apparent to those skilled in the art that the specific technology is merely a preferred embodiment, and the scope of the present invention is not limited thereto. Thus, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.

Claims (6)

Jojoba esters and ascorbic acid, tocopheryl acetate, ascorbyl palmitate, retinyl palmitate, beta-carotene, coenzyme Q-10, ceramide and cholesterol, characterized in that it is stabilized by cyclodextrin A cosmetic composition for protecting lips comprising spherical granules comprising a lip protective active ingredient. delete The cosmetic composition of claim 1, wherein the cosmetic composition improves moisturization and wrinkles of the lips, and has an appearance reminiscent of fruits and foods. The method of claim 1, wherein the content of the granules is a cosmetic composition for protecting the lips, characterized in that 0.001 to 10.0% by weight based on the total weight of the cosmetic composition. The cosmetic composition of claim 1, wherein the granules have a melting point of 40-60 ° C. and an average particle diameter of 300-1700 μm. The cosmetic composition of claim 1, wherein the cosmetic composition has a formulation selected from the group consisting of lip gloss, lip balm, lip cream, lip treatment, and lipstick.