KR20210045003A - Cosmetic composition for skin cleansing with selective exfoliation - Google Patents

Abstract

The present invention relates to a cosmetic composition for skin cleansing capable of selectively exfoliating, and more specifically, to a cosmetic composition for skin cleansing which is an anhydrous cosmetic composition containing oil, cellulose and a surfactant as main components, is capable of removing makeup and skin waste with excellent cleansing power, and allows a user to select an exfoliation step according to the user's choice.

Description

Cosmetic composition for cleansing that can selectively remove dead skin cells{COSMETIC COMPOSITION FOR SKIN CLEANSING WITH SELECTIVE EXFOLIATION}

The present invention relates to a cosmetic composition for cleansing that can selectively remove dead skin cells. In more detail, as anhydrous cosmetic composition containing oil, cellulose and surfactant as main components, it is possible to remove makeup and skin wastes with excellent cleansing power, and a cleansing cosmetic that can select an exfoliating step according to the user's choice. It relates to the composition.

In the skin, the stratum corneum is located at the outermost part of the skin and plays an important role in protecting the skin from various irritants and contaminants in contact with the skin and preventing moisture loss.

In general, the keratin naturally peels after a certain period of time, and a new stratum corneum is formed.However, if the keratin is not properly exfoliated due to external factors such as hormonal abnormalities due to stress or aging, ultraviolet rays or temperature changes, the skin becomes dull. Not only does the skin tone become uneven, it can cause various skin problems such as acne.

In order to solve this problem, various exfoliating cosmetics that can artificially remove the stratum corneum have been developed, and can be largely divided into two types: a chemical type and a physical type.

First, the chemical exfoliating cosmetic is a formulation that chemically dissolves and removes dead skin cells using AHA (Alpha Hydroxy Acid), BHA (Beta-Hydroxy Acid), salicylic acid, and plant extracts containing the same.

In Korean Patent Application Publication No. 2013-0056592, a cosmetic composition is proposed that contains an extract of a blueberry as an active ingredient to reduce dead skin cells, thereby improving skin texture. Since most of these chemical exfoliating cosmetics use chemically active substances having a very low pH, there is a disadvantage of causing skin irritation and various skin side effects.

In contrast, there is a type of formulation characterized by physically peeling off dead skin cells using wax, scrub, and gomage as a cosmetic for physical exfoliating.

Korean Patent Application Laid-Open No. 2010-0064435 proposes a cosmetic composition for removing dead skin cells that removes dead skin cells and impurities using sodium chloride particles and a surfactant as a scrub formulation. However, such a physical exfoliating cosmetic composition has no chemical side effects on the skin, but has a disadvantage in that it may physically injure or irritate the skin.

Korean Patent Laid-Open Publication No. 2014-0055689 proposes a cosmetic composition for exfoliating skin cells of a Gomage type that includes a resin for forming an acrylic copolymer film and an organic acid while reducing skin irritation having a foam shape. At this time, the gommage-type cosmetic composition for exfoliating exfoliates must go through the process of removing dead skin cells by cleansing the makeup and removing moisture, applying the formulation and rolling it over a certain number of times to create gommage, and then washing the face again. Therefore, there is a disadvantage in that it is cumbersome and inconvenient to use.

In order to improve this, a multifunctional cleansing cosmetic composition capable of cleansing and exfoliating at the same time is proposed in Korean Patent Application Publication No. 2015-0082791.

However, in the above-mentioned formulation, the principle of formation of Gomage is the same as that of the existing Gomage type of exfoliating cosmetic composition, so in order for Gomage to occur, it must be rolled a certain number of times. Therefore, before cleansing is sufficiently performed, There is a disadvantage in that the cleansing and exfoliating steps cannot be adjusted as desired by the user, such as the formation of Gomage, which may irritate the skin, or the cleansing is sufficiently performed, but the exfoliation is not sufficiently performed because Gomage is not formed.

In addition, Korean Registered Patent No. 1984165 proposes a cleansing and exfoliating cosmetic composition capable of cleansing when water does not come into contact and exfoliating after contact with water. The above-mentioned formulation has the advantage that the user can adjust the desired time in each step of cleansing and exfoliation, but ultimately, since an exfoliating step is involved every time a cleansing is performed, physical irritation caused skin damage when used every day. There is a disadvantage in that it can cause deterioration of skin moisture due to excessive exfoliation.

Accordingly, the present invention aims to provide a cosmetic composition capable of minimizing skin damage by selectively performing a skin exfoliation step while reducing the inconvenience of use because both cleansing and exfoliating are possible.

The above object is achieved by a cosmetic composition for cleansing comprising 40% to 80% by weight of oil, 5% to 20% by weight of cellulose, and 10% to 30% by weight of a surfactant based on the total weight of the cosmetic composition.

Preferably, the cosmetic composition can control whether to remove dead skin cells in the step of rinsing with water.

Also preferably, the oil is one selected from the group consisting of caprylic/capric triglyceride, dicaprylyl carbonate, ethylhexyl palmitate, hydrogenated polydecene, triethylhexanoine, and combinations thereof It may include more than one.

Also preferably, the surfactant is Solves-30 tetraoleate, sucrose laurate, polyglyceryl-10 oleate, polyglyceryl-10 dioleate, polyglyceryl-2 sesquicaprylate, and their It may be one or more selected from the group consisting of mixtures.

The cosmetic composition of the present invention has excellent cleansing power and can control whether or not to remove dead skin cells according to the user's choice.

In the case of a conventional formulation capable of both cleansing and exfoliating, when used daily, the skin's ability to retain moisture due to physical stress and excessive removal of dead skin decreases, whereas the cosmetic composition of the present invention only removes dead skin when necessary. Through this, it suppresses skin keratinization and resolves imbalance and roughness of skin tone, enabling clear skin.

1 is a photograph showing the cleansing power after applying and rolling the cosmetic composition of the present invention to various makeup and waste-stained hands.
Figure 2a is a photograph showing a time when the cosmetic composition of the present invention is applied and rinsed without the exfoliating step (rolling), and Figure 2b is a photo of cellulose agglomerated in the exfoliating step (rolling) using the cosmetic composition of the present invention, resulting in Gomage. It's a picture.
3 is a graph showing the degree of skin damage after using the cosmetic composition according to the present invention for 4 weeks.

All technical terms used in the present invention, unless otherwise defined, have the following definitions and correspond to the meaning as commonly understood by those of ordinary skill in the relevant fields of the present invention. In addition, although preferred methods or samples are described in the present specification, those similar or equivalent are included in the scope of the present invention.

The term “about” refers to 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, or 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, or relative to a reference amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length. It means an amount, level, value, number, frequency, percentage, dimension, size, amount, weight or length varying by 4, 3, 2 or 1%.

Throughout this specification, unless otherwise required by the context, the terms "comprise" and "comprising" include the steps or components presented, or groups of steps or components, but any other step or component, or It is to be understood that it implies that a step or group of components is not excluded.

The term'gommage' as used in the present invention is an eraser powder-like form that is produced by reacting the dead skin cells and the composition when a cleaning composition is applied to the skin and then massaged at a constant speed and pressure using a finger, etc. Refers to a substance.

The present invention relates to a cosmetic composition for cleansing capable of cleansing makeup and skin wastes and determining whether to remove dead skin cells according to a user's selection. The cosmetic composition of the present invention minimizes skin damage caused by excessive removal of dead skin cells or physical irritation that may occur during daily use because the user can control whether or not to remove dead skin cells while simultaneously performing cleansing and exfoliating skin with one product. It has the feature of being able to do it.

To this end, the cosmetic composition for cleansing of the present invention includes oil, cellulose, and surfactant.

In the conventional skin exfoliating cosmetic composition, cellulose plays a role of removing impurities and dead skin cells by generating gommage. The principle that gommage is generated by cellulose is that fine-sized cellulose is evenly dispersed in water in the formulation, and then when it is applied to the skin and rolled, moisture evaporates and aggregates with each other.

However, the cosmetic composition of the present invention is an anhydrous formulation, and since cellulose is dispersed in oil, moisture evaporation by rolling does not occur, so that gommage does not occur. In the process of rinsing with water afterwards, when rinsing without physical friction, cellulose is washed down with water, so that the exfoliating step can be omitted and cleansing can be finished. On the other hand, in the same process, if appropriate water is placed on the face and physical friction is applied through rolling, the cellulose aggregates with each other to generate gommage, thereby removing dead skin cells and waste products.

Therefore, the cosmetic composition of the present invention has no problems such as skin damage or excessive removal of dead skin cells that may occur in conventional formulations capable of removing dead skin cells and cleansing at the same time since the user can selectively determine whether to remove dead skin cells.

The oil is preferably at least one selected from the group consisting of caprylic/capric triglyceride, dicaprylyl carbonate, ethylhexyl palmitate, hydrogenated polydecene, triethylhexanoine, and combinations thereof Can be used. However, among the oils not presented above, conventional oils that have a similar effect can be used. The content of oil in the cosmetic composition is preferably 40% by weight to 80% by weight based on the total weight of the cosmetic composition. If the content of oil is less than 40% by weight, the cleansing power is lowered and it may be difficult to remove makeup and waste. On the contrary, if it exceeds 80% by weight, there is a problem that it is impossible to exfoliate even when desired because gommage cannot be generated. .

The cellulose is a major composition that forms gommage by aggregation and removes dead skin cells and waste products, and the present invention includes conventional cellulose. The content of cellulose is preferably 5% to 20% by weight based on the total weight of the composition. If the content of cellulose is less than 5% by weight, there is a problem that the exfoliating step cannot be used even when desired because Gomage does not occur.On the contrary, if it exceeds 20% by weight, the stability of the formulation decreases and rolling is reduced in the cleansing step. There is a problem of lowering the cleansing power.

The surfactant included in the present invention is a composition that improves cleansing and determines rinseability with water, and includes sorbes-30 tetraoleate, sucrose laurate, polyglyceryl-10 oleate, polyglyceryl-10 diole It may be one or more selected from the group consisting of eight, polyglyceryl-2 sesquicaprylate, and mixtures thereof. The surfactant may include 10% to 30% by weight based on the total weight of the cosmetic composition. When the content of the surfactant is less than 10% by weight, cleansing power is insufficient and the rinsing property by water is poor, and when it exceeds 30% by weight, there is a problem that Gomage is not properly formed.

The cosmetic composition may contain preservatives, fragrances, alcohols, and conventional additives in addition to oils, celluloses and surfactants, which are the main compositions presented above, to satisfy 100% by weight of the total weight.

The cosmetic composition of the present invention is prepared by a method comprising the following steps:

(1) a first mixing step of preparing a mixed solution by mixing a surfactant with oil;

(2) a second mixing step of adding and mixing cellulose to the mixed solution prepared in the first mixing step; And

(3) adding conventional additives such as alcohol and flavor to the mixture obtained in the second mixing step.

Each step of the manufacturing process is preferably performed at 20°C or more and less than 40°C. When mixed at a temperature higher or lower than the above range, cellulose may aggregate to form crystals.

In addition, in the second mixing step, cellulose is slowly added over 10 minutes, and after completion of the addition, it is important to completely disperse by mixing aji or homo mixture for 5 to 15 minutes.

In the step of adding the additive of (3), the additive is added over 5 minutes and mixed until completely dispersed.

Hereinafter, a preferred embodiment is presented to aid the understanding of the present invention. However, the following examples are only provided to more easily understand the present invention, and the contents of the present invention are not limited by the examples.

Example 1, 2 and Comparative example 1 to 3

The cosmetic compositions of Examples 1 and 2 and Comparative Examples 1 to 3 were prepared through the following manufacturing method with the composition shown in Table 1.

1) Oils (1 and 2) were added to a beaker at room temperature, and surfactants (4 and 5) were slowly added over 5 minutes while mixing aji or homo mixture, followed by mixing for 10 minutes after completion of the addition to completely disperse and homogenize.

2) At room temperature, cellulose (3) was slowly added over 10 minutes while mixing aji or homo-mixing with the ingredients of step 1), and completely dispersed and homogenized for 10 minutes.

3) Additives (6), such as fragrance, were added to the ingredients in step 2) over 5 minutes at room temperature, mixed, and completely dispersed and homogenized.

division Raw material (% by weight) Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 One Caprylic/Capric Triglyceride
(oil) to 100 to 100 to 100 to 100 to 100 2 Dicaprylyl carbonate
(oil) 20.0 60.0 20.0 20.0 20.0 3 cellulose 10.0 10.0 3.0 25.0 10.0 4 Solves-30 Tetraoleate
(Surfactants) 16.0 16.0 16.0 16.0 5.0 5 Sucrose laurate
(Surfactants) 1.4 1.4 1.4 1.4 - 6 Spices Appropriate amount Appropriate amount Appropriate amount Appropriate amount Appropriate amount Total 100.0 100.0 100.0 100.0 100.0

Examples 1 and 2 and Comparative Examples 1 to 3 thus prepared are creamy cosmetic compositions having an off-white viscosity.

Comparative example 4 to 6

Comparative Examples 4 to 6 were prepared through the following manufacturing method with the composition shown in Table 2.

1) Polyol (1) was added to a beaker at room temperature, mixed with aji or homo-mixed, and an acrylate-based copolymer thickener (3) was slowly added over 5 minutes, followed by mixing for 10 minutes after completion of the addition to completely disperse and homogenize.

2) Surfactant (2) was added to the ingredients of step 1) at room temperature while mixing azimuth or homogenization and completely dispersed and homogenized for 5 minutes.

3) At room temperature, alcohol (4) and fragrance (5) were added to the components of step 2) over 5 minutes and mixed to completely disperse and homogenize.

division Raw material Comparative Example 4 Comparative Example 5 Comparative Example 6 One 1.3-butylene glycol
(Polyol) to 100 to 100 to 100 2 Surfactants 5.0 5.0 3.0 3 Acrylate
/C10-30 alkyl acrylate copolymer
(Thickener) 15.0 20.0 10.0 4 Alcohol 2.0 - 2.0 5 Spices Appropriate amount Appropriate amount Appropriate amount Total 100.0 100.0 100.0

Experimental Example 1 : Whether or not to selectively remove dead skin cells and evaluation of user satisfaction accordingly

For Examples 1 and 2 and Comparative Examples 1 to 6, an experiment was conducted to confirm whether the exfoliation can be selectively controlled. The test was conducted on 10 males and 10 females, a total of 20 subjects.Examples 1 and 2 and Comparative Examples 1 to 6 were each applied to the back of the hand by applying 2.0 g to the back of the hand and rolled 30 times at the same speed and pressure, It was checked whether or not mage occurred, and then, in the step of rinsing with water, it was checked whether it was possible to control the occurrence of gomage and exfoliation. In addition, user satisfaction for this was compared and the results are shown in Table 3.

Item Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Dry-handed
Whether Gomage Occurs X X X X X X X O Whether it is possible to control the occurrence of gommage during the rinsing phase O O X X X X X X Whether it is possible to adjust the exfoliation stage by the user O O X X X X X X User satisfaction satisfied satisfied dissatisfaction dissatisfaction dissatisfaction dissatisfaction dissatisfaction dissatisfaction

Referring to Table 3, in Examples 1 to 2, since gommage does not occur due to rolling on dry hands, and the user can control the occurrence of gommage in the subsequent rinsing step with water, the exfoliating step is controlled by the user. It was possible and the user satisfaction was excellent accordingly. On the other hand, in Comparative Examples 1 to 3, even when rolling in the rinsing step, gommage did not occur, and in Comparative Examples 4 to 6, even if gommage did not occur due to rolling in dry hands, gommage was necessarily generated in the step of rinsing with water. Therefore, the user could not control the exfoliation step, and accordingly, the user satisfaction was low.

Experimental Example 2 : Cleansing effect comparison experiment

Experiments were conducted to confirm the cleansing effect for Examples 1 and 2 and Comparative Examples 1 to 6.

The test was conducted on 10 men and 10 women, a total of 20 subjects, and after applying various makeup products to the back of the hand in advance, Examples 1 and 2 and Comparative Examples 1 to 6 were each applied to the back of the hand by 2.0 g at the same speed. After rolling 30 times with and pressure, cleansing was checked, and then, after rolling 10 times with water, the moisture was wiped off, and the remaining amount of makeup was evaluated by dividing into 4 steps as follows. The results are shown in Table 4 and FIG. 1.

Very good: Less than 0 ~ 5% of the residual amount of makeup after cleansing

Excellent: Less than 5 ~ 25% of the remaining amount of makeup after cleansing

Poor: Less than 25 ~ 60% of the remaining amount of makeup after cleansing

Very bad: 60 ~ 100% of the remaining amount of makeup after cleansing

Item Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Cleansing power So
Great So
Great So
Great So
Great Bad Bad So
Bad Bad Final cleansing power So
Great So
Great So
Great So
Great So
Great Bad Bad Bad

Referring to Table 4, Examples 1 and 2 and Comparative Examples 1 and 2 exhibited very excellent cleansing power in which the residual amount of makeup did not exceed 5% when rolling with dry hands.

Experimental Example 3 : Confirmation of the degree of irritation and skin exfoliation effect according to long-term use

Examples 1 and 2 and Comparative Examples 1 to 6 were tested to find out the irritation and exfoliation effect on the skin when used for a long time.

The test was conducted on 10 males and 10 females, a total of 20 subjects, and after using Examples 1 and 2 and Comparative Examples 1 to 6 on the face for 4 weeks, the degree of stimulation was checked, and the exfoliating effect was confirmed in Table 5 And the degree of skin damage is shown in FIG. 3. The degree of irritation and the skin exfoliation effect were evaluated by dividing into four stages, respectively, as follows.

* Degree of stimulation

0: no stimulation at all; 1: There is little irritation; 2: there is some irritation; 3: severe irritation

* Skin exfoliation effect

1: Compared to before use, more than 95% of dead skin cells are removed; 2: Compared to before use, more than 60% and less than 80% of dead skin cells are removed; 3: Compared to before use, 40% or more and less than 60% of skin dead cells are removed; 4: Less than 40% of dead skin cells are removed compared to before use

Item Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 stimulus One One One 2 One 3 3 3 Skin exfoliation effect 2 2 4 2 2 One One One Degree of skin damage So
weakness So
weakness weakness So
weakness So
weakness So
Severe So
Severe So
Severe

Referring to Table 5, when used over a long period of time, it can be confirmed that Examples 1 and 2 and Comparative Examples 1 to 3 had little or no stimulation, whereas Comparative Examples 1 to 3 had severe stimulation.

In addition, in the exfoliating effect of the skin, Examples 1, 2, and Comparative Examples 1 to 3 removed about 60 to 80% of keratin on average compared to before use, whereas Comparative Examples 4 to 6 were It can be seen that more than 95% of this was removed and excessive exfoliation occurred. Accordingly, when checking the degree of skin damage, it was confirmed that the skin damage of Examples 1 and 2 and Comparative Examples 1 to 3 was weak or very weak, whereas the skin damage of Comparative Examples 4 to 6 was very severe.

Claims (4)

A cosmetic composition for cleansing comprising 40% to 80% by weight of oil, 5% to 20% by weight of cellulose, and 10% to 30% by weight of a surfactant based on the total weight of the cosmetic composition. The cosmetic composition for cleansing according to claim 1, wherein the cosmetic composition is capable of controlling whether to remove dead skin cells in the step of rinsing with water. The method of claim 1, wherein the oil is 1 selected from the group consisting of caprylic/capric triglyceride, dicaprylyl carbonate, ethylhexyl palmitate, hydrogenated polydecene, triethylhexanoin, and combinations thereof. A cosmetic composition for cleansing, characterized in that it contains more than one species. The method of claim 1, wherein the surfactant is Solves-30 tetraoleate, sucrose laurate, polyglyceryl-10 oleate, polyglyceryl-10 dioleate, polyglyceryl-2 sesquicaprylate, and these Cosmetic composition for cleansing, characterized in that at least one selected from the group consisting of a mixture of.

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