KR20180011698A - Cosmetic composition for improving skin - Google Patents

Abstract

The present invention relates to a cosmetic composition for improving skin conditions. The cosmetic composition comprises: one or more first silicates selected from a sodium silicate and a sodium metasilicate; a second silicate selected from polyvalent silicates; a stabilizer; a plasticizer; and a pH controller, wherein the pH of the composition is 9 or less. According to the present invention, skin wrinkle alleviation performance is excellent and whitening effects are prevented.

Description

COSMETIC COMPOSITION FOR IMPROVING SKIN [0002]

The present invention relates to a cosmetic composition for skin improvement, and more particularly, to a cosmetic composition for skin improvement which is excellent in at least the ability to improve skin wrinkles, including silicate, and which prevents white turbidity.

There are various causes of skin wrinkles and aging, but it is known that the increase of lipid peroxidation which is harmful to the skin and pigmentation are the main causes. In addition, when the blood circulation of the skin is poor, when the nutrition is insufficient, when the elastic fibers in the dermis are degenerated and contracted, when free radicals are generated by active oxygen, when collagen is insufficient, It is known that the elasticity of the skin and the shrinkability of the pores are weakened due to various causes such as increased activity of inulinase and wrinkles and aging of the skin.

With increasing interest in the beauty and health of the skin, functional materials for skin improvement and cosmetic compositions (such as cosmetics) containing them are being developed. For example, retinol (vitamin A), a-hydroxy acid (AHA), and adenosine increase the synthesis of collagen and normalize the epidermal keratinization process, thereby contributing to skin regeneration. The substance is contained.

However, conventionally used functional materials are mostly synthetic materials, which are difficult to be uniformly dispersed in cosmetic formulations and, in some cases, have side effects such as irritation to eyes, restriction of use of pregnant women, swelling and itching Are reported to occur. Recently, consumers have preferred natural materials rather than synthetic materials. In addition, the natural materials are mainly extracted from natural herbal medicine (plant).

For example, Korean Patent Registration No. 10-1270736 discloses a cosmetic composition containing as an active ingredient an extract of Gingko, Seokchonpo, Hwangbaek, Gosam, Seokbyeo, Myopia, , Korean Patent Registration No. 10-1456059 discloses a cosmetic composition containing a licorice extract. Korean Patent Laid-Open Publication No. 10-2008-0036302 discloses a cosmetic composition for prevention of skin aging and skin wrinkles containing extract of Shiru, as an active ingredient. In Korean Patent Publication No. 10-2015-0102834, A cosmetic composition for skin whitening containing microcapsules is proposed.

However, natural herbal extracts may be harmless to the human body, but they fail to exhibit sufficient effects on skin wrinkles and aging due to their poor ability to absorb the skin, or they are inferior in efficacy to their use.

Further, a technique using silicate as an effective ingredient for improving skin wrinkles has been proposed. For example, Korean Patent Laid-Open Publication No. 10-2012-0003749 discloses a cosmetic composition containing silicate. Silicates have antioxidant power as well as improvement of skin wrinkles, which can be effective in preventing skin aging.

However, the silicate may undergo phase separation (layer separation) in some cases, for example, when the dispersion stability and the like in the water phase deteriorate, and this causes a clouding phenomenon (phenomenon that the skin remains white after application and drying). Accordingly, conventional cosmetic compositions containing silicates have poor formulation stability due to phase separation, and, among other things, they cause white turbidity after application of the skin, resulting in formation of white spots or film on the skin.

Korean Patent Registration No. 10-1270736 Korean Patent Registration No. 10-1456059 Korean Patent Publication No. 10-2008-0036302 Korean Patent Publication No. 10-2015-0102834 Korean Patent Publication No. 10-2012-0003749

Accordingly, it is an object of the present invention to provide an improved cosmetic composition. Specifically, the object of the present invention is to provide a cosmetic composition for improving skin comprising at least silicate, which is excellent in at least the ability to improve skin wrinkles and which prevents white turbidity which may be generated by the silicate.

According to an aspect of the present invention,

At least one primary silicate selected from sodium silicate and sodium metasilicate;

A secondary silicate selected from polyvalent silicates;

stabilizator;

Plasticizers; And

a pH adjusting agent,

A cosmetic composition having a pH of 9 or less is provided.

The cosmetic composition according to the present invention is applied to, for example, facial skin. According to a preferred embodiment, the weight ratio of the second silicate to the first silicate is 0.12 or less.

The cosmetic composition according to the present invention comprises, in accordance with an exemplary embodiment, from 0.2% to 12% by weight of at least one primary silicate selected from sodium silicate and sodium metasilicate; 0.001 wt.% To 1.2 wt.% Of a second silicate selected from polyvalent silicates; 0.05% to 6.0% by weight of stabilizer; From 0.5% to 20.0% by weight of a plasticizer; And 0.01% to 8.0% by weight of a pH adjusting agent.

In addition, the cosmetic composition according to the present invention further comprises a cloudiness improving agent according to a preferred embodiment, and the cloudiness improving agent includes ethylenediamine tetraacetate (EDTA salt). The ethylenediamine tetraacetate (EDTA salt) includes at least one selected from, for example, disodium ethylenediamine tetraacetic acid (EDTA-2Na) and tetrasodium ethylenediamine tetraacetic acid (EDTA-4Na).

The present invention has the effect of providing an improved cosmetic composition. Specifically, the present invention has an effect of improving at least the skin wrinkle-improving ability, including a silicate. Further, according to the present invention, it is possible to prevent the whitening phenomenon which may be generated by the silicate.

Figs. 1 to 8 are images showing the appearance of the cosmetic composition according to each of the examples and the comparative examples of the present invention after being applied to the face of the subject and dried.
9 and 10 are images showing the results of solubility test for sodium silicate and sodium metasilicate.
11 is an image before and after use of the cosmetic composition according to an embodiment of the present invention.

The present invention provides a cosmetic composition having skin-improving ability. The type and formulation of the cosmetic composition according to the present invention are not limited as long as they are applied to human skin. The cosmetic composition according to the present invention can be selected, for example, from cosmetics for aesthetic beauty or skin protection. The cosmetic composition according to the present invention may have, for example, liquid form, gel form or cream form, but is not limited thereto.

The cosmetic composition according to the present invention comprises at least one first silicate selected from sodium silicate and sodium meta silicate; A secondary silicate selected from polyvalent silicates; stabilizator; Plasticizers; And pH adjusting agents. In addition, the cosmetic composition according to the present invention includes a solvent such as water and has a pH of Potential of Hydrogen of 9 or less.

Hereinafter, embodiments of the present invention will be described.

First, the term "and / or" used in the present invention is used to mean at least one of the constituents listed before and after. The term "one or more" as used in the present invention means one or more than two. In the present invention, terms such as " first "and" second "are used to distinguish one element from another, and the elements are not limited thereto.

The term " skin improving function (skin improving ability) "used in the present invention means a function of improving skin wrinkles (wrinkle relief), preventing aging of skin, improving skin elasticity, alleviating skin diseases, skin whitening, skin trouble, Means at least one selected function. Specifically, in the present invention, "excellent skin improving function (improved)" means "skin wrinkle reducing function (wrinkle reducing function), skin aging prevention function, skin elasticity improving function, skin disease mitigation function, skin whitening At least one selected from a function, a skin trouble-preventing function and a sebum secretion-preventing function is excellent (improved). " In addition, the term "silicate" as used below may refer to both the first silicate and the second silicate as the case may be.

[1] Primary silicate

The first silicate is selected from sodium silicate and / or sodium meta silicate, which is included as an active ingredient of the skin improving function. The first silicate has at least the function of improving the wrinkles of the skin (wrinkle relieving) as mentioned above. The primary silicate, for example, imparts elasticity to the skin or swells the skin instantaneously. Also, the primary silicate forms a thin film film on the surface of the skin, or smoothes the skin by filling the grooves existing on the surface of the skin. The first silicate has at least the above functions and acts as an active ingredient for skin wrinkle improvement (relaxation). In addition to these functions, the primary silicate also has antioxidant activity and / or antimicrobial activity and also acts as an active ingredient for preventing skin aging.

In the present invention, the first silicate includes sodium silicate, sodium metasilicate and / or a hydrate thereof. The hydrate may be selected from, for example, sodium metasilicate pentahydrate and / or sodium metasilicate tetrahydrate (9 hydrate). In addition, the first silicate may be dispersed (dissolved) in the cosmetic composition, for example, in water, and then mixed with the cosmetic composition.

According to a preferred embodiment of the present invention, the first silicate is preferably selected from sodium silicate and sodium metasilicate (and / or its hydrate). According to an experimental study of the present invention, it has been found that both sodium silicate and sodium metasilicate have a tendency of lowering the solubility and vitrification as the pH is lowered. At this time, when the solubility is poor, crystals are formed, and when it is vitrified, the whitening phenomenon occurs severely. According to the present invention, sodium methacylate has a higher solubility in water than sodium silicate, and is less likely to be vitrified even at a low pH, indicating that the whitening phenomenon is minimized or minimized. Therefore, it is preferable to use sodium metasilicate rather than sodium silicate for the reasons mentioned above, and this can be confirmed also by the following examples.

The first silicate may be used in an appropriate amount depending on the type and / or formulation of the cosmetic composition. The first silicate is not particularly limited, but may be contained in an amount of, for example, 0.2 wt% to 12 wt% based on the total weight of the cosmetic composition. At this time, if the content of the first silicate is less than 0.2% by weight, the effect of improving the skin wrinkles due to use thereof may be insignificant. If the content of the first silicate is more than 12% by weight, the synergistic effect of the excessive use may not be sufficient and the whitening phenomenon may occur. In view of this, the primary silicate may be included in an amount of 1.0 wt% to 8.0 wt% based on the total weight of the cosmetic composition.

[2] Second silicate

The second silicate is selected from a polyvalent silicate, which is used for stabilization of the first silicate. As used herein, the term "stable" means that there is no chemical reaction and that it is physically uniformly dispersed (uniformity). The second silicate acts as a stabilizer for the first silicate, so that at least uniform dispersion stability (prevention of phase separation etc.) of the first silicate in the composition is promoted. Thus, the primary silicate is stabilized by the secondary silicate (polyvalent silicate) and is homogenized in the composition. In addition, the second silicate also acts as a thickener to improve skin-tanning properties.

The polysilicate as the second silicate is selected from a silicate comprising at least one polyvalent metal element. The polyvalent metal element may be selected from metal elements belonging to groups 2 to 5 of the periodic table. More specifically, the polyvalent metal element may be selected from Mg, Al, Ca, and / or Ba etc. Can be selected.

In the present invention, the second silicate includes a hydrate of a polyvalent silicate and / or a polyvalent silicate. In addition, the second silicate may be dispersed (dissolved) in the cosmetic composition, for example, in water, and then mixed with the cosmetic composition. The second silicate may be selected from, for example, magnesium aluminum silicate, magnesium calcium silicate, aluminum calcium silicate, magnesium aluminum calcium silicate, hydrates thereof and / or dispersions thereof (e.g., 2-50 wt% . The second silicate preferably comprises magnesium aluminum silicate.

The second silicate may, for example, be a magnesium aluminum silicate dispersion, having a viscosity of about 200 to 450 cps. At this time, if the viscosity is too low, the stabilization of the first silicate and / or the skin-spreading property may be insignificant. If the viscosity is too high, it may become like jelly or cloudiness may occur. As the magnesium aluminum are commercially available products with a silicate dispersion, such as Veegum ^® series such as (US, RTVandevilt社, Ltd.) and the like, specific example Veegum-Ultra, Veegum-HV and / or Veegum-HS Can be used. Of these, Veegum-Ultra products having a viscosity of preferably about 225 to 425 cps can be usefully used.

According to a preferred embodiment of the present invention, the weight ratio of the second silicate to the first silicate is preferably 0.12 or less. Specifically, it is preferable that R according to the following formula is 0.12 or less. In the following equation, R is the weight ratio, S1 is the content (weight) of the first silicate contained in the composition, and S2 is the content (weight) of the second silicate contained in the composition.

[Mathematical Expression]

R = S2 / S1

According to the present invention, when the weight ratio (R) of the second silicate to the first silicate is 0.12 or less, the whitening phenomenon can be remarkably prevented at a low pH. That is, the cosmetic composition according to the present invention has a pH of 9 or less. When the weight ratio (R) exceeds 0.12 at such a low pH, whitening may occur, but the weight ratio (R) The whitening phenomenon can be remarkably prevented.

As mentioned above, the silicate causes a whitening phenomenon which forms a white speck or film on the skin after drying, and this whitening phenomenon becomes worse with lower pH. The whitening is caused not only by the first silicate but also by the second silicate. When the second silicate is used in a large amount, the stability of the first silicate and the viscosity of the composition are increased, which is advantageous for improving the wrinkles of the skin. However, according to a preferred embodiment of the present invention, when the weight ratio (R) of the second silicate to the first silicate is specified to be 0.12 or less, the stability of the first silicate and the viscosity of the composition are ensured, Cloudiness is prevented.

The weight ratio (R) of the second silicate to the first silicate may be, for example, 0.005 to 0.12. At this time, when the weight ratio (R) is less than 0.005 and the amount of the second silicate is too low, the effect of the stability of the first silicate and / or the viscosity of the composition may be insignificant. Considering this point, the weight ratio (R) is more preferably 0.01 to 0.1.

The second silicate may be used in an appropriate amount depending on the type and / or formulation of the cosmetic composition. The weight ratio (R) of the second silicate is 0.12 or less, preferably 0.01 to 0.1, and may be used in an amount of, for example, 0.001 to 1.2% by weight based on the total weight of the cosmetic composition. If the content of the second silicate is less than 0.001 wt%, the effect of the stability of the first silicate and / or the viscosity of the composition may be insignificant. When the content of the second silicate is more than 1.2% by weight, the synergistic effect of the second silicate is not so high and the whitening may occur due to the second silicate. In view of this, the second silicate may be included in an amount of 0.05 to 1.0% by weight based on the total weight of the cosmetic composition.

[3] stabilizers

The stabilizer is used for the stabilization of the silicate. The stabilizer may be any one capable of stabilizing at least the first silicate. The stabilizer may be, for example, xanthan gum, dihydroxanthan gum and / or hydroxyethyl cellulose, but is not limited thereto. At this time, the first silicate is stabilized by the second silicate, and is stabilized (homogenized, etc.) additionally by the stabilizer. Accordingly, the primary silicate is present in a very stable state in the composition by the secondary silicate (primary stabilizer) and the stabilizer (secondary stabilizer). In addition, the stabilizer stabilizes the first silicate as well as the second silicate, which also acts as a thickener of the composition and improves skin texture.

The stabilizer may be used at a weight ratio of 0.01 to 0.5 (i.e., a weight ratio of the first silicate: stabilizer = 1: 0.1 to 2.0) to the first silicate. In addition, the stabilizer may be contained in an amount of, for example, 0.05 wt% to 6.0 wt% based on the total weight of the cosmetic composition. At this time, when the amount (content) of the stabilizer used is too low, the degree of stabilization of the silicate may be insignificant. When the amount (content) of the stabilizer used is too large, the synergistic effect with excess use is not so high, and the viscosity of the composition may become too high. All.

[4] plasticizers

The plasticizer is used for plasticizing the silicate. The plasticizer may be any plasticizer capable of plasticizing at least the first silicate. The cosmetic composition according to the present invention can form a thin film film with sodium metasilicate and / or sodium metasilicate as a primary silicate after skin application. At this time, the film may be hardened by the first silicate, and the plasticizer prevents this phenomenon. That is, the plasticizer plasticizes the first silicate to impart flexibility to the film. In addition, the plasticizer can plasticize the secondary silicate, as well as the primary silicate.

The plasticizer is not particularly limited so long as it can plasticize the silicate to impart flexibility to the film. The plasticizer may be selected from, for example, glycols, glycerin and / or glycerides, and specific examples thereof include propylene glycol, butyleneglycol and / or glycereth-26 Lt; / RTI >

The plasticizer may be used at a weight ratio of 0.2 to 5.0 (i.e., a weight ratio of the first silicate: plasticizer = 1: 0.5 to 5.0) to the first silicate. Further, the plasticizer may be contained in an amount of, for example, 0.5 to 20.0% by weight based on the total weight of the cosmetic composition. In this case, if the amount of plasticizer used (content) is less than 0.5% by weight, the degree of plasticization (imparting flexibility) of the silicate may be insignificant depending on the use thereof. If the plasticizer is used in excess of 20.0% by weight, The synergistic effect is not much. Taking this into consideration, the plasticizer may be included in an amount of from 8.0% by weight to 15.0% by weight.

[5] pH adjusting agents

The pH adjusting agent is used for lowering the pH of the cosmetic composition. The cosmetic composition may have a strong alkalinity such as, for example, a pH of 10 or more and a pH of 11.5 or more by the above-mentioned first silicate and second silicate. At this time, when the pH of the cosmetic composition is 10 or more and has a high pH, skin irritation may occur at least. In addition, in Korea, the liquidity of cosmetics is defined as pH 9 or less, specifically, pH 3 to 9.

Accordingly, the pH of the present invention is set to 9 or less in consideration of skin irritation and / or legal regulations, and a pH adjuster is included for this purpose. The cosmetic composition according to the present invention may specifically have a pH in the range of pH 7 to 9. At this time, when the pH exceeds 9, skin irritation may occur as described above, and the regulation can not be satisfied. In addition, if the pH is less than 7 and too low, the stability of the silicate may be lowered and the whitening phenomenon may occur. Taking this into consideration, it is preferable that the cosmetic composition according to the present invention has a liquidity in the range of pH 8 to 9.

The pH adjusting agent is not particularly limited as long as it can adjust the pH of the cosmetic composition to 9 or less. The pH adjusting agent may be selected from, for example, organic acids, inorganic acids and / or salts thereof (derivatives), and specific examples thereof include citric acid, glycyrrhizic acid, citric acid, ascorbic acid, salicylic acid, stearic acid, , Malic acid, sorbic acid, stearic acid, aspartic acid, erysorbic acid, oleic acid, maleic acid, maleic acid, fumaric acid, maleic acid, fumaric acid, , Tartaric acid, sorbic acid, alginic acid, and / or salts thereof (derivatives).

In addition, the amount (content) of the pH adjusting agent may be adjusted to a pH of 9 or less. The pH adjusting agent may be contained in an amount of, for example, 0.01 wt% to 8.0 wt% based on the total weight of the cosmetic composition, but is limited to the above range. However, if the amount (content) of the pH adjusting agent is too low to less than 0.01% by weight, the degree of pH drop due to use thereof may be insignificant. If the amount (content) of the pH adjusting agent is more than 8.0% by weight, the pH may be too low to be irritating to the skin, and the stability of the silicate of the silicate may be deteriorated and / or clouding phenomenon may occur.

[6] Solvent

In addition, the cosmetic composition according to the present invention further includes a solvent in addition to the above components. The solvent may be any one capable of dispersing (diluting) at least a silicate, and may be selected from, for example, water, alcohols and a mixture thereof. In one example, the solvent may comprise at least water. Water may be selected from purified water and distilled water. The content of the solvent may correspond to the remaining amount of the cosmetic composition. The solvent may be, for example, from 45.0% by weight to 99.0% by weight, or from 55.0% by weight to 95.0% by weight, based on the total weight of the cosmetic composition.

[7] cloudiness improving agent

According to a preferred embodiment, the cosmetic composition according to the present invention may further comprise a cloudiness improving agent for preventing (improving) cloudiness caused by the silicate. According to the present invention, the turbidity improving agent includes ethylene diamine tetraacetic acid (EDTA) salt (hereinafter abbreviated as "EDTA salt"). According to the present invention, it has been found that the EDTA salt is effective for preventing (improving) the whitening phenomenon, which can also be confirmed by the following examples.

The EDTA salt is a metal salt in which at least one metal element is bonded to ethylenediaminetetraacetic acid (EDTA), for example, sodium ethylenediaminetetraacetic acid (EDTA-Na), potassium ethylenediaminetetraacetic acid (EDTA-K) Or calcium ethylenediamine tetraacetic acid (EDTA-Ca). The EDTA salt may preferably be selected from sodium ethylenediamine tetraacetic acid (sodium EDTA). The EDTA salt may be selected from more specific examples such as disodium ethylenediamine tetraacetic acid (Disodium EDTA, EDTA-2Na) and / or tetrasodium ethylenediamine tetraacetic acid (Tetrasodium EDTA, EDTA-4Na) (Improvement) of the present invention.

The EDTA salt as a cloudiness improving agent may be contained in an amount of, for example, 0.001% by weight to 20.0% by weight based on the total weight of the cosmetic composition. At this time, when the amount (content) of the EDTA salt is too low, less than 0.001 wt%, the anti-whitening effect due to use thereof may be insignificant. If the amount (content) of the EDTA salt is more than 20.0% by weight, it may irritate the skin. Taking this into consideration, the EDTA salt may be contained in an amount of 0.05 to 10.0% by weight based on the total weight of the cosmetic composition.

[8] Other ingredients

In addition, the cosmetic composition according to the present invention may further comprise an additional component such as a film-forming agent, an anti-wrinkle agent and / or a plant extract (medicinal plant extract) in addition to the above components. The additional ingredients may be selected from those conventionally used in the art, for example, in the range of 0.001 wt% to 10.0 wt% based on the total weight of the cosmetic composition.

The film-forming agent may be selected from a polymer, for example, polyvinyl pyrrolidone (PVP) or the like. As the anti-wrinkle agent, for example, acetyl hexapeptide can be usefully used.

In addition, the above-mentioned plant extracts can be classified into various kinds of plant extracts such as red ginseng, red ginseng, gigobipi, ginseng, woosung, yugi, , Ginseng, pine needles, pine needles, pine needles, pine needles, white pine, white pine, bamboo, casualties, For example, one or more extracts selected from the group consisting of black beans, black sesame seeds, mulberry leaves, porcupineous seeds, rhododendrons and roots, and the like.

In the present invention, the plant extract may be obtained by extracting leaves, stems, roots and / or fruits of each plant with a solvent extract using water and / or an organic solvent; Squeezed extract using squeezing; And / or a concentrated solution obtained by concentrating the extract obtained by extracting the solvent with distillation under reduced pressure and the like. Further, in the case of solvent extraction, one or two or more mixed extraction solvents selected from water, anhydrous or hydrated lower alcohol having 1 to 4 carbon atoms (methanol, ethanol, propanol, butanol, etc.)

According to an embodiment of the present invention, the plant extract preferably contains at least one selected from the group consisting of Portulaca oleracea extract and Aloe Barbadeensis leaf extract, and they are effective for improving skin.

It is known that the marjoram is effective for the treatment of various boils and skin diseases. The mashin extract is contained in the cosmetic composition according to the present invention, and at least a skin anti-inflammatory effect can be achieved. In addition, it is known that the aloe vera leaves have effects such as regeneration and moisturization of cell tissue. The aloe vera leaf extract is contained in the cosmetic composition according to the present invention, and at least effects such as improvement in skin elasticity, alleviation of fine lines, moisturization, and / or inflammation can be achieved.

The cosmetic composition according to the present invention may contain cosmetic bases according to the kind and formulation of the ingredients described above. The cosmetic base is not particularly limited. The cosmetic base may be variously prepared depending on the kind of the product and the formulation. The cosmetic base may vary depending on the product, but may be, for example, a surfactant (anionic, cationic, nonionic, amphoteric), an emulsifier, an emulsifier, a glycol, an alcohol, a moisturizer, a conditioning agent, Chelating agents, sunscreens, perfumes, and the like. Since each component constituting such a cosmetic base can be prepared as usual, a detailed description thereof will be omitted.

In addition, the cosmetic composition according to the present invention may have, for example, formulations such as liquid, gel, cream, paste and foam. In addition, the cosmetic composition according to the present invention can be used for cosmetics such as softening lotion, convergent lotion, nutritional lotion, gel, nutritional cream, massage cream, eye cream, eye essence, essence, cleansing cream, cleansing lotion, cleansing foam, But are not limited to, a pack, a body lotion, a body cream, a body essence, a patch, a face mask, a spray, and / or a skin adhesive type.

According to the present invention described above, the ability to improve at least the skin wrinkles is improved by including the first silicate selected from sodium silicate and sodium metasilicate. Further, according to the present invention, the whitening phenomenon which can be generated by the first silicate and / or the second silicate at a low pH (below pH 9) is prevented. The whitening phenomenon is prevented by the specific weight ratio (R) of the second silicate to the first silicate, and / or the stabilizer and the like as described above. In particular, according to a preferred embodiment, the presence of an EDTA salt as a clouding improver is significantly prevented (improved).

Hereinafter, examples and comparative examples of the present invention will be exemplified. The following examples are provided to illustrate the present invention in order to facilitate understanding of the present invention, and thus the technical scope of the present invention is not limited thereto. Further, the following comparative examples are not meant to be a description of the prior art, but are provided for comparison with the embodiments only. And some of the following comparative examples may be included in the scope of the present invention.

[Example 1]

Ingredients shown in Table 1 below were added to water (purified water) at about 25 ° C, and the mixture was sufficiently mixed and stirred through a stirrer to prepare a gel composition. The specific components and contents of the cosmetic composition according to the present embodiment are as shown in Table 1 below. In the following [Table 1], the content of each component is the weight percentage of each component based on the whole cosmetic composition.

[Comparative Example 1]

The procedure of Example 1 was repeated, except that the content of the polyvalent silicate (magnesium aluminum silicate) as the second silicate was different as compared with that of Example 1. The specific components and contents of the cosmetic composition according to this Comparative Example are as shown in Table 1 below.

[Examples 2 to 4]

Compared with Example 1, except for using sodium methacylate (9 hydrate) instead of sodium silicate (Example 2) as a primary silicate or by using different amounts of sodium silicate (Example 3 and Example 4) Was carried out in the same manner as in Example 1. The specific components and contents of the cosmetic composition according to each of Examples (2 to 4) are as shown in Table 1 below.

[Comparative Example 2]

The procedure of Example 4 was repeated, except that the amount of xanthan gum as a stabilizer and the content of propylene glycol as a plasticizer were different as compared with Example 4. The specific components and contents of the cosmetic composition according to this Comparative Example are as shown in Table 1 below.

The pH and the weight ratio (R) of the second silicate to the first silicate were evaluated for the cosmetic composition according to each of the Examples and Comparative Examples, and the results are shown in Table 1 below.

The whitening phenomenon was evaluated for the cosmetic composition according to each of the Examples and Comparative Examples. The whitening phenomenon was evaluated by applying the cosmetic composition according to each of the examples and the comparative examples to the face of an adult male and female subject and then visually observing it after drying. At this time, the whitening phenomenon was evaluated based on the following criteria and shown in Table 1 below. In addition, FIGS. 1 to 4 are images showing the appearance of the cosmetic composition according to each of the examples and the comparative examples after coating and drying on the face of the subject.

<Criteria for evaluation of cloudiness phenomenon>

- None: No white spots or no coating

- Slight occurrence: white specks or slight coatings are observed.

- Occurrence: White stain or coating is clearly observed.

 &Lt; Composition of cosmetic composition and evaluation result of cloudiness phenomenon, unit: wt% ingredient Example 1 Comparative Example 1 Example 2 Example 3 Example 4 Comparative Example 2 Primary silicate S1-1 4 4 - 4 4 4 S1-2 - - 4 - - - Second silicate
(Polyvalent silicate) S2 0.25 3 0.45 0.45 0.5 0.5 stabilizator X 0.45 0.45 0.45 0.45 0.45 0.15 Plasticizer PG 6 6 9.87 9.87 9.87 6 pH adjusting agent Citric acid 1.72 1.72 1.72 1.72 1.70 1.70 water Purified water Balance Balance Balance Balance Balance Balance Sum 100 100 100 100 100 100 pH 8.70 8.74 8.71 8.74 8.82 8.82 R 0.0625 0.75 0.1125 0.1125 0.125 0.125 Cloudiness none Occur none Slight occurrence Slight occurrence Occur S1-1: sodium silicate
S1-2: sodium meta silicate (9 water)
S2: Magnesium aluminum silicate (5% by weight aqueous dispersion, viscosity about 250 cps at 20 캜)
X: xanthan gum
PG: Propylene glycol
R: weight ratio of the second silicate (polyvalent silicate) to the first silicate (R = S2 / S1)

As shown in Table 1 and Figures 1 to 4, the cosmetic composition (pH 9 or less) according to the Examples had a whitish appearance compared to the cosmetic composition (pH 9 or less) according to the Comparative Examples Or almost not. In addition, it can be seen that the whitening phenomenon differs depending on the type of silicate and the content of polyvalent silicate.

First, comparing Example 1 with Comparative Example 1, it can be seen that when the content of polyvalent silicate (magnesium aluminum silicate) is high at pH 9 or lower (Comparative Example 1), the whitening phenomenon occurs severely (see FIG. 1).

In contrast, in Examples 2 to 4 and Comparative Example 2, the whitening phenomenon was improved in the case of using sodium metasilicate (Example 2) than in the case of using sodium silicate (Example 3 and Comparative Example 2) (See FIGS. 2 and 3). That is, when the weight ratio R (= S2 / S1) is low, the whitish phenomenon is not seen.

Comparing Example 4 and Comparative Example 2, the whitening phenomenon is less than that in the case where the content of the stabilizer (xanthan gum) and the plasticizer (propylene glycol) is high (Example 4) (See Fig. 4)

[Example 5]

Compared with Example 4, the procedure of Example 4 was repeated, except that sodium methasilicate (9 hydrate) was used instead of sodium silicate as the primary silicate and the content of the pH adjuster was varied. The specific components and contents of the cosmetic composition according to this embodiment are as shown in Table 2 below. In the following [Table 2], the content of each component is the weight percentage of each component based on the whole cosmetic composition.

[Example 6]

The procedure of Example 4 was repeated, except that EDTA salt was further added as a clouding improver in comparison with Example 4. The specific components and contents of the cosmetic composition according to this embodiment are as shown in Table 2 below.

[Comparative Example 3]

The procedure of Example 6 was repeated, except that EDTA salt was not added as a cloudiness improving agent and the content of polyvalent silicate (magnesium aluminum silicate) was changed as compared with Example 6. [ The specific components and contents of the cosmetic composition according to this Comparative Example are as shown in Table 2 below.

[Comparative Example 4]

Comparative Example 3 was carried out in the same manner as in Comparative Example 3, except that no pH adjusting agent (citric acid) was added. The specific components and contents of the cosmetic composition according to this Comparative Example are as shown in Table 2 below.

[Example 7]

Compared with Example 6, except that sodium methasilicate (9 hydrate) was used instead of sodium silicate as the primary silicate and the content of sodium metasilicate (9 hydrate) and polyvalent silicate (magnesium aluminum silicate) was varied The procedure of Example 6 was repeated. The specific components and contents of the cosmetic composition according to this embodiment are as shown in Table 2 below.

[Comparative Example 5]

The procedure of Example 7 was repeated, except that EDTA salt was not added as a clouding improver and the content of polyvalent silicate (magnesium aluminum silicate) was changed as compared with Example 7. [ The specific components and contents of the cosmetic composition according to this Comparative Example are as shown in Table 2 below.

The pH and weight ratio (R) of each of the cosmetic compositions according to Examples 5 to 7 and Comparative Examples 3 to 5 were evaluated. The white turbidity phenomenon was evaluated in the same manner as described above, and the results are also shown in Table 2 below. 5 to 8 are images showing the appearance of the cosmetic composition according to each of the examples and the comparative examples after being applied to the face of the subject and dried.

  &Lt; Composition of cosmetic composition and evaluation result of cloudiness phenomenon, unit: wt% ingredient Example 4 Example 5 Example 6 Comparative Example 3 Comparative Example 4 Example 7 Comparative Example 5 Primary silicate S1-1 4 - 4 4 4 - - S1-2 - 4 - - - 3.5 3.5 Second silicate
(Polyvalent silicate) S2 0.5 0.5 0.5 1.5 1.5 0.75 0.5 stabilizator X 0.45 0.45 0.45 0.45 0.45 0.45 0.45 Plasticizer PG 9.87 9.87 9.87 9.87 9.87 9.87 9.87 Cloudiness improving agent
(EDTA salt) EDTA-2Na - - 0.12 - - 0.12 - EDTA-4Na - - 0.50 - - 0.50 - pH adjusting agent Citric acid 1.70 1.72 1.72 1.72 - 1.72 1.72 water Purified water Balance Balance Balance Balance Balance Balance Balance Sum 100 100 100 100 100 100 100 pH 8.82 8.71 8.71 8.74 11.26 8.71 8.72 R 0.125 0.125 0.125 0.375 0.375 0.214 0.143 Cloudiness slightly
Occur none none Occur slightly
Occur none Occur S1-1: sodium silicate
S1-2: sodium meta silicate (9 water)
S2: Magnesium aluminum silicate (5% by weight aqueous dispersion, viscosity about 250 cps at 20 캜)
X: xanthan gum
PG: Propylene glycol
EDTA-2Na: Disodium EDTA
EDTA-4Na: Tetrasodium EDTA
R: weight ratio of the second silicate (polyvalent silicate) to the first silicate (R = S2 / S1)

First, comparing Example 4 with Example 5, it can be seen that the case of using sodium metasilicate (Example 5) is improved more than that of the case of using sodium silicate (Example 4).

 Further, comparing Example 4 with Example 6, and Comparative Example 3 with Example 6, it was found that the case where the EDTA salt was used as the clouding improver (Example 6) was not used (Example 4 and Comparative Example 3) The whitening phenomenon is remarkably improved (see FIG. 5).

In addition, it can be seen that, in comparison with Example 5 and Example 6, the degree of whitening is low in Example 6 though it is a slight difference (see FIG. 6).

On the other hand, when the pH is higher than 9 (Comparative Example 4, pH 11.26), the whitening phenomenon is low in Comparative Example 3 and Comparative Example 4 (see FIG. 7).

Comparing Example 7 and Comparative Example 5, it was found that the whitening phenomenon was hardly caused by the opacifying agent (EDTA salt) even though the content of polyvalent silicate (magnesium aluminum silicate) was higher than that of Comparative Example 5 (See FIG. 8).

[Example 8] < Solubility Experiment 1 >

The solubilities of sodium silicate and sodium meta silicate in water were evaluated as follows.

As shown in the following Table 3, 3.5 g of sodium silicate (sample 1) and 3.5 g of sodium metasilicate (sample 2) were added to 96.5 g of distilled water at 25 ° C., and the mixture was stirred at the same stirring rate for 30 minutes Sufficiently dissolved. Each sample was then placed in a clear container to compare its solubility. 9 is a photograph of Sample 1 and Sample 2.

[Example 9] < Solubility Experiment 2 >

In addition, the solubility of sodium silicate and sodium meta silicate in water was evaluated as follows in the range of pH 8.5 to 9.0.

As shown in the following Table 4, 3.5 g of sodium silicate (Sample 3) and 3.5 g of sodium metasilicate (Sample 4) were added to 95 g of distilled water at 25 ° C., and the mixture was stirred at the same stirring rate for 30 minutes . Thereafter, 1.5 g of citric acid was added to each sample, and the solution was further stirred and dissolved for 20 minutes, and then each sample was placed in a transparent container to compare its solubility. 10 is a photograph of Sample 3 and Sample 4.

      &Lt; Composition of sample for solubility comparison, unit: wt% > ingredient Sample 1 Sample 2 Remarks Sodium silicate 3.5 -
at 25 ℃ Sodium metasilicate (9 water) - 3.5 Distilled water 96.5 96.5 Sum 100 100

       &Lt; Composition of sample for solubility comparison, unit: wt% > ingredient Sample 3 Sample 4 Remarks Sodium silicate 3.5 -
at 25 ℃
pH: 8.5 to 9.0 Sodium metasilicate (9 water) - 3.5 Citric acid 1.5 1.5 Distilled water 95.0 95.0 Sum 100 100 pH 8.90 8.79

As shown in FIGS. 9 and 10, sodium methacylate is more soluble than sodium silicate, especially when sodium methasilicate is dissolved in distilled water, it is more soluble than sodium silicate at lower pH Higher results were obtained. This suggests that the soluble sodium methasilicate is less precipitated after drying than sodium silicate, resulting in reduced whitening on the skin.

[Example 10]

A cream form cosmetic composition was prepared with the ingredients and contents as shown in Table 5 below.

First, the composition (A) of the following [Table 5] was put into a vessel equipped with a stirrer, and the composition (F) was added thereto while stirring was continued, followed by stirring and mixing. . At this time, solvent extracts using ethanol were used for each of the plant extracts in (D) composition and (E) composition. In the following [Table 5], the content of each component is the weight percentage of each component based on the whole cosmetic composition.

            &Lt; Component and content of cosmetic composition, unit: wt% > ingredient content main function (A) Composition Purified water 63.27 menstruum S1-2 3.5 Wrinkle improvement, etc. S2 0.25 Stabilization / thickening Xanthan gum 0.45 Stabilization / thickening Propylene glycol 9.87 Plasticization (B) Composition EDTA-2Na 0.12 Cloudiness improvement
(EDTA salt) EDTA-4Na 0.5 Citric acid 1.56 pH control (C) Composition PVP 0.28 Film formation Purified water 0.42 menstruum (D) Composition Marchia extract 2.526 Skin improvement etc. Glycerin 0.3 Skin Conditioning Propanediol 0.15 Preservation Phenoxyethanol 0.024 Preservation (E) Composition Aloe vera leaf extract 0.942 Skin improvement etc. Butylene glycol 0.05 Skin Conditioning Phenoxyethanol 0.008 Preservation (F) Composition Acetyl hexapeptide-8 0.004 Wrinkle improvement, etc. Butylene glycol 0.05 Skin Conditioning Phenoxyethanol 0.0032 Preservation (G) Composition Adenosine 0.04 Wrinkle improvement, etc. Allantoin 0.1 Skin Conditioning Dipotassium glycyrrhizate
(Dipotassium glycyrrhizate) 0.1 Skin Conditioning 1,2-Hexanediol 0.1 Preservation Etylhexanediol 0.56 Preservation Purified water Remaining amount (To 100) menstruum S1-2: sodium meta silicate (9 water)
S2: Magnesium aluminum silicate (5% by weight aqueous dispersion, viscosity about 250 cps at 20 캜)
EDTA-2Na: Disodium EDTA
EDTA-4Na: Tetrasodium EDTA
PVP: polyvinylpyrrolidone

The cosmetic composition (cream formulation) according to Example 10 was applied (applied) to the face of female subjects in their 50s and 60s. Fig. 11 is an image of Before and After images of the tester showing the best results, and the image after use in Fig. 11 is the image after about 8 minutes of application.

Claims (10)

At least one primary silicate selected from sodium silicate and sodium metasilicate;
A secondary silicate selected from polyvalent silicates;
stabilizator;
Plasticizers; And
a pH adjusting agent,
wherein the pH is 9 or less.
The method according to claim 1,
Wherein the weight ratio of the second silicate to the first silicate is 0.12 or less.
3. The method of claim 2,
The pH is 7 to 9,
Wherein the weight ratio of the second silicate to the first silicate is from 0.01 to 0.1.
4. The method according to any one of claims 1 to 3,
In the cosmetic composition,
From 0.2% to 12% by weight of at least one primary silicate selected from sodium silicate and sodium metasilicate;
0.001 wt.% To 1.2 wt.% Of a second silicate selected from polyvalent silicates;
0.05% to 6.0% by weight of stabilizer;
From 0.5% to 20.0% by weight of a plasticizer; And
and 0.01 to 8.0% by weight of a pH adjusting agent.
4. The method according to any one of claims 1 to 3,
Wherein the cosmetic composition further comprises a cloudiness improving agent,
Wherein the opacity improver comprises ethylenediaminetetraacetic acid salt.
6. The method of claim 5,
Wherein the ethylenediaminetetraacetic acid salt comprises at least one selected from disodium ethylenediaminetetraacetic acid (EDTA-2Na) and tetrasodium ethylenediaminetetraacetic acid (EDTA-4Na).
5. The method of claim 4,
Wherein the stabilizer is contained in a weight ratio of 0.01 to 0.5 based on the first silicate.
4. The method according to any one of claims 1 to 3,
Wherein the cosmetic composition further comprises one or more plant extracts selected from a marigold extract and an aloe vera leaf extract.
From 0.2 wt% to 12 wt% of the first silicate;
0.001 wt.% To 1.2 wt.% Of a second silicate selected from polyvalent silicates;
0.05% to 6.0% by weight of stabilizer;
From 0.5% to 20.0% by weight of a plasticizer; And
0.01 to 8.0% by weight of a pH adjusting agent,
the pH is 9 or less,
Wherein the first silicate is sodium metasilicate,
Wherein the weight ratio of the second silicate to the first silicate is 0.12 or less.
10. The method of claim 9,
In the cosmetic composition,
Further comprising a clouding improver,
The clouding improver is ethylenediamine tetraacetate,
Wherein the ethylenediaminetetraacetic acid salt is contained in an amount of 0.05 to 10.0% by weight.

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