KR102246863B1 - Skin cleansing cosmetic compositions containing modified starch for low-irritation and skin exfoliation - Google Patents

Abstract

The present invention relates to a hypoallergenic, cleansing cosmetic composition for exfoliating skin, including modified starch, and more particularly, 0.1 to 10% by weight of sodium polyacrylate starch and 0.1 to By including 70% by weight of a surfactant, it is less irritating, has excellent skin exfoliation effect, and has excellent effects in both regeneration of dead skin cells and skin moisturizing power after use. .

Description

Cleansing cosmetic composition for removing dead skin cells, including denatured starch {SKIN CLEANSING COSMETIC COMPOSITIONS CONTAINING MODIFIED STARCH FOR LOW-IRRITATION AND SKIN EXFOLIATION}

The present invention relates to a hypoallergenic, cleansing cosmetic composition for exfoliating skin including modified starch, and more particularly, 0.1 to 10% by weight of sodium polyacrylate starch and glycine group In the group consisting of (-glycine), ammonium sulfate group (-ammonium sulate), amide group (-amide), diethanol amide group (-diethanol amide), stearate group (-stearate), and lauryl group (-laulyl) A cleansing cosmetic composition for removing dead skin cells that contains 0.1 to 70% by weight of a surfactant having one or more functional groups, so that there is little irritation, excellent skin exfoliating effect, and having excellent effects in both regeneration of dead skin cells and skin moisturizing power after use. It is about.

The composition of the stratum corneum of the skin consists of proteins, fats, water-soluble substances and moisture. Skin cells growing in the skin rise to the stratum corneum to form keratinocytes, and repeat generation and dropout. This process is called turn over. Hyperkeratosis occurs when keratin is not turned over and exfoliated in a normal cycle due to aging phenomena and external stimuli such as ultraviolet rays and stress. The stratum corneum in which hyperkeratinization has occurred has an inconsistent skin tone, the skin looks rough and dull, and the makeup is uneven. In order to solve these problems, various cosmetic compositions for exfoliating have been developed.

Existing methods to remove dead skin cells are divided into chemical methods and physical methods. As a chemical method, there is a method of dissolving and removing dead skin cells using organic acid chemicals, and the conventional organic acid chemicals used to remove dead skin cells include alpha hydroxy acid (AHA) or beta hydroxy acid (BHA, Beta). hydroxy acid) and the like. Meanwhile, as a cosmetic composition comprising an alpha-hydroxy acid and an ether-based surfactant in Korean Patent No. 10-1120660, including an alpha-hydroxy acid, an ether-based surfactant, a water-soluble polymer material, and an amino acid-based anionic surfactant. Although a cosmetic composition having excellent exfoliating effect has been disclosed, when such an organic acid or an organic acid derivative is used, it exhibits activity in a low pH state, which may cause skin irritation or chemical skin side effects.

In addition, as a method of physically removing dead skin cells, there is a method of physically peeling off dead skin cells using organic powder or inorganic powder, or using an aqueous gel-forming polymer. However, even in this case, a massage is performed depending on the size of the particles of the organic or inorganic powder, and there is a problem that the physical stimulation is strong and the pores are damaged.

Therefore, in order to solve the above problems, it is intended to provide a cleansing cosmetic composition having less skin irritation, excellent exfoliating effect, and excellent exfoliation regeneration and skin moisturizing power after use.

Korean Patent Registration No. 10-1120660 (filing date: 2005.12.21)

The present application aims to provide a mild, non-irritating, cleansing cosmetic composition for removing dead skin cells, including modified starch, in order to improve the high skin irritation and side effects of the existing cleansing cosmetic compositions for skin dead skin cells. However, the problem to be solved by the present application is not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

One aspect of the present application is a hypoallergenic cleansing for exfoliating skin comprising 0.1 to 10% by weight of sodium polyacrylate starch and 0.1% to 70% by weight of a surfactant based on the total weight of the cosmetic composition It provides a cosmetic composition. The surfactant is preferably used selectively among anionic, cationic, amphoteric and/or nonionic surfactants according to the formulation, feeling and conditions of use.

Another aspect of the present application provides a cosmetic product, including a cleansing cosmetic composition for removing hypoallergenic skin dead skin cells of the present application.

The present invention provides a cosmetic composition that is hypoallergenic and has excellent skin exfoliation effect by using a modified starch with less skin irritation. In addition, when used as a cosmetic composition for exfoliating, it has excellent effects in both regeneration and skin moisturizing power.

Hereinafter, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement. However, the present application may be implemented in various different forms and is not limited to the embodiments described herein.

In the entire specification of the present application, when a certain part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

Hereinafter, embodiments of the present application will be described in detail. However, the present application is not limited to this embodiment.

One aspect of the present application is a hypoallergenic cleansing for exfoliating skin comprising 0.1 to 10% by weight of sodium polyacrylate starch and 0.1% to 70% by weight of a surfactant based on the total weight of the cosmetic composition It provides a cosmetic composition.

In one embodiment of the present application, sodium polyacrylate starch contains 0.1% to 10% by weight based on the total weight of the cosmetic composition. In the case of containing less than 0.1% by weight of sodium polyacrylate starch outside the preferred content range, there is a disadvantage in that the moisturizing power and skin softening effect are insufficient, and when it exceeds 10% by weight, skin irritation may occur.

In addition, the cosmetic composition containing sodium polyacrylate starch, for example, has very good exfoliating effect when used as a skin exfoliating cosmetic, has little irritation, has excellent skin moisturizing power even after use, and has an excellent effect on keratin regeneration. Have. This is because sodium polyacrylate starch helps exfoliate without skin irritation, contributes to improved absorption and stability as a cosmetic composition, and has the characteristics of ensuring viscosity maintenance.

Surfactants may be any of anionic, cationic, amphoteric and/or nonionic surfactants, but preferably glycine, glycol, and ammonium sulfate ( -ammonium sulate), amine group (-amine), amide group (-amide), diethanol amide group (-diethanol amide), stearate group (-stearate), caprylyl group (-caprylyl), lauryl group (- laulyl) may include a surfactant containing one or more functional groups.

In one embodiment of the present application, in more detail, the surfactant is Potassium Cocoyl Glycinate (GCK-12H), PEG-60 Hydrogenated Castor Oil, PEG-60 Hydrogenated Castor Oil. -7 Glyceryl Cocoate (PEG-7 Glyceryl Cocoate, Cetiol HE), Cocamide DEA (Micopol CDE), Cocamidopropyl betaine (Mitain CA), Lauramid DAE Micopol LDE), ammonium lauryl sulfate (ALS (ASCO 25A), A526), ammonium fatty alcohol ethoxysulfate, and PEG-150 pentaerythrityl tetrastearate (PEG-150). Pentaerylthrityl tetrastearate, Crotix ^TM ) may include any one or more selected from the group consisting of, but is not limited thereto.

The content of the surfactant is preferably 0.1% to 70% by weight based on the total weight of the cosmetic composition. If it is less than 0.1% by weight outside the range of the preferred content, it may be disadvantageous to stabilize the formulation, and if it exceeds 70% by weight, there may be disadvantages such as poor feeling of use or change in physical properties.

In one embodiment of the present application, the cosmetic composition is purified water, glycerin (glycerin), diglycerin (diglycerin), propylene glycol (propylene glycol), dipropylene glycol (DPG, dipropylene glycol) and 1,3 as a solvent. -It may include any one or more selected from the group consisting of butylene glycol (1,3-butylene glycol), but is not limited thereto. In addition, the amount of the solvent contained in the cosmetic composition for exfoliating the skin of the present invention is not related to the viscosity or physical properties of the composition and widely used. Preferably, the solvent may be included in the range of 1 to 70% by weight based on the total weight of the cosmetic composition for exfoliating the skin, but is not limited thereto.

In one embodiment of the present application, the cosmetic composition is an additive such as phenoxy ethanol, disodium EDTA, EDTA-2Na, ethylhexyl glycerin, preservatives, fragrances, thickeners, etc. It may further include, but is not limited thereto. Phenoxy ethanol may be used in the cosmetic composition of the present invention for antiseptic effects such as maintaining the state of the cosmetic composition. The additives can be freely adjusted by checking the physical properties of the cosmetic composition, and a preferred embodiment may be included in the range of 0.1% to 10% by weight based on the total weight of the cosmetic composition.

In one embodiment of the present application, the cosmetic composition of the present invention provides a cosmetic composition having an excellent effect of hypoallergenic and exfoliating.

In one embodiment of the present invention, the cosmetic composition of the present invention has a number of dead skin cells regeneration days of 8.3 to 13 days after exfoliation, and includes a skin moisturizing effect having a skin conductivity of 90 to 97 s, but is not limited thereto.

In one embodiment of the present application, the formulation of the cosmetic composition of the present application is not particularly limited, and may be appropriately selected according to the purpose. For example, skin lotion, skin softener, skin toner, lotion, milk lotion, moisture lotion, nutrition lotion, massage cream, nutrition cream, moisture cream, hand cream, foundation, makeup base, primer, essence, nutrition essence, pack, Soap, peeling gel, peeling pack, peeling cream, cleansing foam, cleansing lotion, cleansing cream, cleansing gel, cleansing oil, body lotion, and body cleanser may be prepared in one or more formulations selected from the group consisting of, preferably massage cream , Pack, soap, peeling gel, peeling pack, peeling cream, cleansing foam, cleansing lotion, cleansing cream, cleansing gel, cleansing oil, and body cleanser, but is not limited thereto. In particular, the cosmetic composition of the present application is hypoallergenic and excellent in exfoliating effect when used as a cleansing cosmetic composition for dead skin cells.

Hereinafter, the present application will be described in more detail using experimental examples and examples, but the present application is not limited thereto.

[Composition ratio of Examples 1 to 4 and Comparative Examples 1 and 2]

The cosmetic composition of the present application was prepared with the composition shown in Table 1 below.

Examples 1 to 4 and Comparative Examples 1 and 2 are surfactants such as Cocamidopropyl betaine (Mitain CA), Cocamide DEA (Micopol CDE), and Potassium Cocoyl Glycinate. , GCK-12H), PEG-60 Hydrogenated Castor Oil, and PEG-7 Glyceryl Cocoate (Cetiol HE) were used.

Other additives for preservative purposes, viscosity control, pH control, flavoring, etc. include phenoxy ethanol, disodium EDTA (EDTA-2Na), fragrance, purified water, ethylhexyl glycerin, The experiment was carried out further including dipropylene glycol (DPG) and the like.

The characteristics of the composition of each of Examples 1 to 4 and Comparative Examples 1 and 2 are as follows.

[Examples 1 to 4]

Examples 1 to 4 are characterized by containing 0.1% by weight, 2% by weight, 5% by weight, and 10% by weight, respectively, in order of sodium polyacrylate starch based on the total weight of the cosmetic composition.

[Comparative Example 1]

Comparative Example 1 is characterized in that sodium polyacrylate starch is not included with respect to the total weight of the cosmetic composition.

[Comparative Example 2]

Comparative Example 2 is characterized in that it contains 1.00% by weight of glycolic acid based on the total weight of the cosmetic composition.

Table 1 below is for each component of Examples 1 to 4 and Comparative Examples 1 and 2 of the present invention. The content range of components indicated as appropriate amounts in Table 1 below is a degree that can be appropriately adjusted for appropriate values of physical properties, viscosity, and aesthetics in the entire composition, and more preferably, the appropriate amount of phenoxyethanol is in the range of 0.1 to 0.5% by weight, The appropriate amount of ethylhexyl glycerin is in the range of 0.01 to 0.1% by weight, and the appropriate amount of the fragrance is in the range of 0.001 to 0.1% by weight. After that, the remaining amount was adjusted with purified water.

Raw material name Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Sodium polyacrylate starch 0.1 2 5 10 - - Glycolic Acid - - - - - 1.00 Disodium EDTA 0.03 0.03 0.03 0.03 0.03 0.03 Cocamidopropyl Betaine 5 5 5 5 5 5 Cocamide D.A. 2.5 2.5 2.5 2.5 2.5 2.5 Potassium cocoyl glycinate 30 30 30 30 30 30 PEG-60 Hydrogenated Castor Oil 0.5 0.5 0.5 0.5 0.5 0.5 PEG-7 Glyceryl Cocoate 1.0 1.0 1.0 1.0 1.0 1.0 Phenoxyethanol Appropriate amount Appropriate amount Appropriate amount Appropriate amount Appropriate amount Appropriate amount Ethylhexyl glycerin Appropriate amount Appropriate amount Appropriate amount Appropriate amount Appropriate amount Appropriate amount incense Appropriate amount Appropriate amount Appropriate amount Appropriate amount Appropriate amount Appropriate amount DPG 10 10 10 10 10 10 Purified water To 100 To 100 To 100 To 100 To 100 To 100

* The numerical value of the constituent components represents the weight percent of the total weight.

[Experimental Example] Evaluation of the feeling of use, irritation, and number of dead skin cells regeneration days after use, and skin moisturizing ability of the cosmetic composition of the present application

The cosmetic composition of the present application was evaluated for feeling of use, irritation, and number of days of keratin regeneration after use, and skin moisturizing ability.

[ Experimental example 1] of this application Cosmetic Composition of Feeling of use evaluation

In order to evaluate the feeling of use of the cosmetic composition of the present application, the contents of Examples 1 to 4 and Comparative Examples 1 and 2 were evenly spread by 5 g, and after about 10 minutes, the overall satisfaction was scored according to the feeling of use evaluation criteria.

The number of evaluation personnel was 20, and each evaluation score was averaged by summing the scores of 20 evaluation personnel.

<Usability evaluation criteria>

As a sensory evaluation criterion for the feeling of use, the score of the exfoliation effect was set from 1 to 5, meaning 1= none, 2= slight, 3= average, 4= good, 5= very good.

Table 2 below is a table of results of evaluation scores for the feeling of use of Examples 1 to 4 and Comparative Examples 1 and 2 according to the evaluation criteria of the feeling of use.

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Evaluation score 2 4 5 5 One 2

As can be seen from Table 2, Examples 1 to 4 including sodium polyacrylate starch were excellent in exfoliating effect compared to Comparative Examples 1 and 2 not including sodium polyacrylate starch.

[ Experimental example 2] For exfoliating the skin of this application Cosmetic Composition of Irritation evaluation

In order to evaluate the irritation sensation of the cosmetic composition of the present application, a patch containing 5 g of a solution obtained by dissolving 1% of the contents of Examples 1 to 4 and Comparative Examples 1 and 2 in distilled water (DI-Water) was placed on the back of the tester 48 After the time-closed patch, 30 minutes and 24 hours after the patch was removed, the overall satisfaction was observed according to the following irritation evaluation criteria, and evaluated by evaluation of 20 personnel.

<Irritation evaluation criteria>

As a criterion for evaluating the feeling of irritation, the effect of exfoliating was evaluated by dividing into weak, medium, and lecture stages.

Table 3 below is a table of results of evaluation of the feeling of use of Examples 1 to 4 and Comparative Examples 1 and 2 according to the sensation sensory evaluation criteria.

Evaluation results Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Patch removal 30 minutes about about about about about River Patch removal 24 hours about about about about about medium

As can be seen from Table 3, Examples 1 to 4 including sodium polyacrylate starch were found to have less irritation than Comparative Example 2 including glycolic acid, which is a conventional exfoliating agent component.

[ Experimental example 3] of this application Cosmetic Number of days of regeneration of the stratum corneum after use of the composition

After using the cosmetic composition of the present application for exfoliating the skin, the number of days of regeneration of the stratum corneum was observed. Before applying the cosmetic composition to 20 evaluators, measure the color inside the upper arm of the subject's arm with a Dhroma meter (CR-200, Minolta, Japan), and then measure 5 test areas 2 cm wide and 2 cm long by 10%. It was colored brown for 6 hours with a concentration of dihydroxy acetone. Thereafter, the cosmetic composition was applied to the colored area, rubbed for 2 minutes with the same force, and then the sample was washed with water. After 60 minutes of washing the colored area, the color of the colored area was measured to check the difference in color before and after using the cosmetic composition. Thereafter, the cosmetic composition was rubbed once a day for 2 minutes in the same manner, washed, and then the color was measured, and the degree of decolorization was measured with a color difference meter, and the time it took to return to the original skin color was measured.

Table 4 below is a result table of the number of days of regeneration of the stratum corneum after using the cosmetic compositions of the present application of Examples 1 to 4 and Comparative Examples 1 and 2 according to the above evaluation method.

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Stratum corneum
Number of days to play (day) 13 10.2 9.0 8.3 15.4 11

As can be seen from Table 4, the average number of days of regeneration of the stratum corneum of Examples 1 to 4 including sodium polyacrylate starch is shorter than the average number of days of regeneration of the stratum corneum of Comparative Examples 1 and 2. In addition, when sodium polyacrylate starch contains 2 to 10% by weight based on the total weight of the cosmetic composition for exfoliating skin, Comparative Example 2 including glycolic acid, which is widely used as a cosmetic composition for exfoliating skin. It was confirmed that it has a more excellent effect compared to.

[Experimental Example 4] Evaluation of skin moisturizing power after use of the cosmetic composition of the present application

The skin moisturizing power after use of the cosmetic composition of the present application was evaluated.

For 20 evaluators, each 5g of the cosmetic composition was rubbed on the hand for 30 seconds to generate foam, and the resulting foam was rubbed on the face 30 times for 30 seconds. After that, it was rinsed with running water for 60 seconds, pressed with a towel for 10 seconds, dried, and after 2 minutes, the skin moisturizing power was measured using a skin moisture content measuring device (Skin Surface Hygrometer, Skincon-200, Japan), twice a day, weekly. It proceeded for 4 days.

Skin Surface Hygrometer (Skin Surface Hygrometer, Skincon-200) measures the conductivity of the skin to be measured using a probe through which a single high-frequency current of 3.5 MHz flows. The probe is a gold thin-film electrode in two circles and observes a direct current between the electrode and the skin being measured. At this time, the skin moisture content measuring device is microsienmens (µs), which is a unit of conductivity of the skin.

<Evaluation criteria for skin moisturizing power>

The criteria for evaluating skin moisturizing power are based on the results of the skin moisture content measuring device, and the unit of the value is microsiemens.

Table 5 below is a table of results according to the criteria for evaluating skin moisturizing power of Examples 1 to 4 and Comparative Examples 1,2.

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Moisture moisturizing power
(㎲) 90 92 96 97 81 80

As can be seen from Table 5, the skin moisturizing power of Examples 1 to 4 including sodium polyacrylate starch has a better skin moisturizing effect than Comparative Examples 1 and 2 not including sodium polyacrylate starch. Therefore, when sodium polyacrylate starch is used as a constituent of a cosmetic composition, it has an excellent effect of moisturizing the skin.

The foregoing description of the present application is for illustrative purposes only, and those of ordinary skill in the art to which the present application pertains will be able to understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects.

The scope of the present application is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims, and the concept of equivalents thereof should be interpreted as being included in the scope of the present application. .

Claims (8)

Including 0.1 to 10% by weight of sodium polyacrylate starch and 0.1 to 70% by weight of a surfactant based on the total weight of the cosmetic composition,
Includes dipropylene glycol,
The number of days for keratin regeneration is 8.3 to 13 days after exfoliation,
Skin conductivity of 90 to 97 µs,
Cleansing cosmetic composition for removing dead skin cells.
The method of claim 1,
The surfactant is a cleansing cosmetic composition for removing dead skin cells comprising at least one selected from the group consisting of anionic, cationic, zwitterionic, and nonionic surfactants.
The method of claim 1,
The surfactant is a glycine group (-glycine), a glycol group (-glycol), an ammonium sulfate group (-ammonium sulate), an amine group (-amine), an amide group (-amide), a diethanol amide group (-diethanol amide). ), stearate group (-stearate), caprylyl group (-caprylyl), lauryl group (-laulyl) comprising any one or more functional groups from the group consisting of, a cleansing cosmetic composition for removing dead skin cells.
The method of claim 1,
The surfactants are Potassium Cocoyl Glycinate, PEG-60 Hydrogenated Castor Oil, PEG-7 Glyceryl Cocoate, Cocamide DEA, Cocamidopropyl betaine, Lauramide DEA, Ammonium lauryl sulfate, Ammonium fatty alcohol ethoxysulfate And PEG-150 pentaerythrityl tetrastearate (PEG-150 Pentaerylthrityl tetrastearate) comprising any one or more selected from the group consisting of, a cleansing cosmetic composition for removing dead skin cells.
The method of claim 1,
The cosmetic composition is selected from the group consisting of purified water, glycerin, diglycerin, propylene glycol, and 1,3-butylene glycol as a solvent. Any one or more containing 1 to 70% by weight based on the total weight of the cosmetic composition,
The cosmetic composition is a cleansing cosmetic composition for removing dead skin cells comprising 0.1 to 10% by weight of phenoxyethanol as an additive based on the total weight of the cosmetic composition.
delete Cosmetics comprising the cleansing cosmetic composition for removing dead skin cells of claim 1.
The method of claim 7,
The above cosmetics are skin lotion, skin softener, skin toner, lotion, milk lotion, moisture lotion, nutrition lotion, massage cream, nutrition cream, moisture cream, hand cream, foundation, makeup base, primer, essence, nutrition essence, pack, soap , Peeling gel, peeling pack, peeling cream, cleansing foam, cleansing lotion, cleansing cream, cleansing gel, cleansing oil, body lotion and body cleanser.