KR20200002660A - Cosmetic composition - Google Patents

Abstract

The present invention relates to a method for preventing discoloration of a mixture, which is accelerated during storage or by light exposure, depending on the type of surfactant, in a mixture comprising piroctone olamine (PO), and a cosmetic composition of the present invention contains PO and an antioxidant as an active ingredient. The discoloration prevention method using the antioxidant improves the storage stability of the mixture containing PO, thereby preventing discoloration of the mixture, which can be accelerated during storage or by light exposure, and can prevent the deterioration of organoleptic quality, thereby being particularly suitable for preparing transparent shampoos.

Description

Cosmetic composition {COSMETIC COMPOSITION}

The present invention relates to a cosmetic composition that can prevent discoloration of the mixture accelerated during the storage period or by photoexposure, depending on the type of surfactant, in a cosmetic composition comprising pyroctone olamine (PO).

Pyroctonolamine used for antidandruff purposes exhibits an excellent dandruff inhibitory effect, and is particularly suitable for the preparation of transparent shampoos because of its excellent solubility in shampoo formulations containing excessive amounts of surfactants.

However, these mixtures cause discoloration (yellowing) of the mixture during storage, depending on the type of surfactant used, which is accelerated by photoexposure, leading to degradation of the organoleptic quality in transparent sapphires containing pyrotonolamine. Let's do it.

Therefore, in the preparation of a transparent shampoo using pyrotonolamine, it is generally used to reduce the content of pyrotonolamine or use a translucent container.

An object of the present invention to prevent discoloration of the composition generated during the storage period in the cosmetic composition containing pyrotonolamine, to provide the optimum stability conditions by grasping the anti-discoloration stability, in detail an antioxidant that can prevent discoloration It is to provide a cosmetic composition for preventing discoloration comprising as an active ingredient.

According to one embodiment of the present invention, it provides a cosmetic composition comprising a pyroctone olamine (PO), and an antioxidant as an active ingredient.

The antioxidant is metabisulfite salt, niacinamide, butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), ascorbyl palmitate, tocopheryl acetate ( tocopheryl acetate), ascorbic acid, N-acetylcysteine and mixtures thereof.

The antioxidant may be included in an amount of 0.01% by weight to 1% by weight based on the entire composition.

The composition is butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), nicotinamide (Niacinamide), ascorbyl palmitate, tocopheryl acetate (other than the antioxidant), It may further comprise any one antioxidant selected from the group consisting of ascorbic acid, N-acetyl-cysteine, sodium metabisulfite and mixtures thereof.

The antioxidant may be included in an amount of 0.01% to 2% by weight based on the entire composition.

The discoloration preventing cosmetic composition according to the present invention improves the storage stability of a composition containing pyrotonolamine, prevents discoloration of the composition that can be accelerated during storage or by light exposure, and can prevent deterioration of sensory quality, thereby making it transparent. It is particularly suitable for the manufacture of shampoos.

1 is a photograph showing the results of preparing a transparent shampoo composition in Comparative Example 25, Comparative Example 26 and Example 14.

Hereinafter, the present invention will be described in more detail.

In order to achieve the above object, the present invention is to determine the anti-discoloration stability of the cosmetic composition containing pyrotonolamine, to provide the optimum stability conditions, and more particularly to include an antioxidant that can prevent discoloration as an active ingredient It is to provide a cosmetic composition for preventing discoloration.

The antioxidant is metabisulfite salt, niacinamide, butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), ascorbyl palmitate, tocopheryl acetate ( tocopheryl acetate), ascorbic acid, N-acetylcysteine, and mixtures thereof. The metabisulfite may be represented by the following formula (1).

[Formula 1]

In Chemical Formula 1, A is potassium or sodium, and accordingly, the metabisulfite may be sodium metabisulfite (SMBS) or potassium metabisulfite specifically represented by the following Chemical Formula 2.

[Formula 2]

For the purpose of preventing discoloration, the antioxidant may be included in an amount of 0.01 wt% to 1 wt%, and more preferably 0.01 wt% to 0.2 wt%, based on the total weight of the cosmetic composition. If the content of the antioxidant is less than 0.01% by weight, the effect may be insignificant, and when the content of the antioxidant exceeds 1% by weight, it may cause a problem in formulation stability.

The pyrotonolamine may be included in an amount of 0.01 wt% to 2 wt% based on the total weight of the cosmetic composition. When the content of the pyrotonolamine is greater than 2% by weight may inhibit the formulation stability, when less than 0.01% by weight, its efficacy and effect may be weak.

On the other hand, the cosmetic composition is also used in the treatment of dandruff, seborrheic dermatitis and psoriasis, selected from salicylic acid, coal tar, and derivatives thereof such as anthraline, selenide sulfide, cyclopyroxolamine, and other known anti-dandruff agents or mixtures thereof. It may optionally further comprise a therapeutic ingredient effective to achieve the therapeutic result. The content of the therapeutic ingredient may be used in an amount of 0.5 wt% to 3 wt%, specifically 1 wt% to 2 wt%, based on the total weight of the cosmetic composition.

The cosmetic composition can be conveniently formulated using known shampoo bases, for example the shampoo component yields a final formulation having one or more surfactants, blowing agents, viscosity of 4,000 mPa.s to 9,000 mPa.s at room temperature. Sufficient thickeners, preservative systems, antioxidant systems, and sufficient acids or bases or buffers to obtain shampoos ranging from pH 3 to pH 8 may be included. At this time, a single component may have two or more functions such as a surfactant and a blowing agent.

Surfactants suitable for use in the shampoo include commercially available nonionic surfactants, amphoteric surfactants, anionic surfactants or mixtures thereof.

One class of nonionic surfactants includes polyoxyethylene derivatives of polyol esters, wherein the polyoxyethylene derivatives of polyol esters comprise (1) (a) about 8 to about 22, specifically about 10 to Fatty acids containing about 14 carbon atoms and (b) sorbitol, sorbitan, glucose, α-methyl glucoside, polyglucose having about 1 to about 3 glucose residues per molecule, glycerin, pentaerythritol and mixtures thereof Derived from a polyol selected from; (2) containing on average about 10 to about 120, specifically about 20 to about 80, oxyethylene units, and (3) on average about 1 to about 3 fatty acid residues per mole of polyoxyethylene derivative of the polyol ester It can have

Another class of nonionic surfactants include (a) condensation products of long chain alcohols containing from about 6 to about 22, preferably from about 8 to about 14 carbon atoms, and (b) glucose or glucose-containing polymers. Phosphorus long chain alkyl glucosides or polyglucosides.

The amphoteric surfactants may include ampocarboxylates, alkyl betaines, amidoalkyl betaines, amidoalkyl sultaines, amphophosphates, phosphobetaines, pyrophosphobetaines, carboxyalkyl alkyl polyamines and mixtures thereof However, the present invention is not limited thereto.

The anionic surfactants include alkyl sulfates, alkyl ether sulfates, alkyl monoglyceryl ether sulfates, alkyl monoglyceride sulfates, alkyl monoglyceride sulfonates, alkyl sulfonates, alkyl aryl sulfonates, alkyl sulfosuccinates, alkyl ethers. Sulfosuccinates, alkyl sulfosuccinates, alkyl amidosulfosuccinates, alkyl carboxylates, alkyl amidoethercarboxylates, alkyl succinates, fatty acyl sarcosinates, fatty acyl amino acids, fatty acyl taurates, fatty alkyls Sulfoacetates, alkyl phosphates, and mixtures thereof.

Preferred surfactants include sodium olefin sulfonates with olefins having from about 14 to about 16 carbon atoms, sodium lauryl sulfate, TEA lauryl sulfate, sodium laureth sulfate, coamidopropylamine oxide, lauryl amine oxide, la Uramido DEA, coamidopropyl betaine, lauryl dimethyl betaine, cocodimethyl sulfo-propyl betaine, sodium cocoyl sarcosinate, disodium oleamido MIPA sulfosuccinate, disodium cochamido MIPA Sulfosuccinates, disodium laureth sulfosuccinates, cocoampocarboxy-glycinates, disodium oleamido MEA sulfosuccinates, amine glycinates, amine propionates and aminesultaines, and mixtures thereof And sodium olefin sulfonate may be most preferred.

As an example of the shampoo, a mixture of two or more different surfactants, more particularly a mixture of anionic and amphoteric surfactants, in particular sodium laureth sulfonate and sodium cocoyl sarcosinate, or sodium lauryl sulfo Nate, nitrile laureth sulfonate, TEA lauryl sulfonate, cocoamidopropylamine oxide, and coamidopropyl betaine can be used.

In the cosmetic composition, the total amount of the surfactant may range from 30 wt% to 60 wt%, specifically 40 wt% to 50 wt%, based on the total weight of the cosmetic composition. Specifically, the cosmetic composition is 15% to 30% by weight, specifically 20% to 25% by weight of anionic surfactant, 5% to 20% by weight, 10% to 15% by weight based on the total weight Of nonionic surfactants and 10% to 30% by weight, specifically 20% to 25% by weight of amphoteric surfactant.

The weight of the amphoteric surfactant is preferably less than 15% by weight of the total weight of the surfactant. More specifically, the cosmetic composition may comprise 20% to 25% by weight of anionic surfactant, such as 20% to 25% by weight of sodium olefin sulfonate and 20% to 25% by weight of amphoteric surfactant, based on the total weight of the composition. Wherein the amphoteric surfactant comprises 1.0% to 5.0% by weight of cokeamidopropylamine oxide and 20% to 25% by weight of cokeamidopropyl betaine based on the total weight of the amphoteric surfactant can do.

The blowing agent (foaming agent booster and stabilizer) may include fatty acid mono and di-alkanolamides and mixtures thereof, but the present invention is not limited thereto.

Examples of such amides may be cokeamide MEA, cokeamide DEA, oleamide MEA, oleamide DEA and mixtures thereof. The blowing agent is 0% (w / w) to 10% (w / w), specifically 2% (w / w) to 6% (w / w), in particular 4% (w / w) to 5% (w / w). Such ingredients typically also have a thickening effect on the formulation.

The preservatives are dermatologically acceptable preservatives such as sodium EDTA, methylparaben, propylparaben, butylparaben, ethylparaben, imidazolidinyl urea, diazolidinyl urea, phenoxyethanol, quartium 15, citric acid, specifically It may include a combination of each other. Sodium EDTA and citric acid can also act as chelating agents. The preservative is used in an amount effective to retard degradation of the final composition in order to have a suitable shelf life.

The cosmetic composition may further include an additional antioxidant together with the antioxidant.

The antioxidant is butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), nicotinamide (Niacinamide), ascorbyl palmitate, tocopheryl acetate, ascorbic acid, An antioxidant selected from the group consisting of N-acetyl-cysteine, sodium metabisulfite, and mixtures thereof, effectively stabilizes the decomposition of the active ingredients present in the cosmetic composition during the accelerated aging period at 50 ° C. for 13 weeks. You can. The ratio of BHT or BHA may be 0.01% (w / w) to 1% (w / w). The antioxidant may be included in an amount of 0.01% to 2% by weight based on the entire composition.

Because shampoo users expect the shampoo to be slightly viscous, one or more thickeners may be included in the formulation such that the viscosity at room temperature is between 4,000 mPa · s and 9,000 mPa · s. Suitable thickeners are polycarboxylic acids such as Carbomer or Carbopol ™ 1342, which are thickened by addition of sodium hydroxide or sodium chloride at the end of the preparation.

Other suitable thickeners may include xanthan gum, nongum, and the blowing agents described above, specifically cokeamide MEA.

The amount of thickener used depends on the desired viscosity, but typically the amount of thickener used may range from 0% to 2% by weight, specifically from 0.2% to 1.3% by weight, based on the total weight of the cosmetic composition.

The pH adjusting or buffering agent may include sodium citrate, citric acid and mixtures thereof, but the present invention is not limited thereto. The pH of the cosmetic composition can be conveniently set using dermatologically acceptable acids, bases and buffers. The pH can range from 3.0 to 8.0, specifically from 3.5 to 5.0, in particular from 3.7 to 4.2.

The solubilizer may include, but is not limited to, hexylene glycol, propylene glycol, butylene glycol and mixtures thereof. These solubilizers can be used in an amount effective to dissolve almost all solids in a given solution.

The cosmetic composition may optionally further include a conditioner of 0% to 5% by weight, specifically 1% to 3% by weight, based on the total weight. Suitable conditioners include cationic cellulose derivatives; Cationic guar derivatives; Silicon materials such as cyclomethicone, dimethicone, and glyceryl derivatives such as linoleamidopropyl polyglycol dimonium chloride and mixtures thereof; Or mixtures thereof, but the present invention is not limited thereto.

The amount of each conditioner component may range from 0.01 wt% to 1.0 wt%, specifically 0.01 wt% to 0.5 wt%, more specifically 0.01 wt% to 0.2 wt%, based on the total weight of the composition.

Specifically, cationic cellulose derivatives include polymeric quaternary ammonium salts such as polyquatium-7, polyquatium-22, polyquatium-10 and mixtures thereof, with polyquatium-22 being preferred.

Cationic guar derivatives are preferably guar hydroxypropyltrimonium chloride, marketed under the trade name "Jaguar C-17" by Rhone-Poulenc Inc., Cranberry, NJ. Do.

Still other preferred cationic polymers include compounds derived from acrylamidopropyl trimonium chloride, more specifically copolymers of these monomers with acrylamides, the latter of which is called Alid Colloids (Souppol, Va.). Allied Colloids is sold under the trade name "Salcare SC60".

Other cationic conditioning polymers are those derived from monomeric diallyldimethylammonium chloride. Homopolymers of these monomers are polyquatium-6, sold under the name "Salcare SC30" by Ali Colloids of Souppolk, Va., USA. The copolymer of diallyldimethylammonium chloride and acrylamide is known as polyquatium-7 and is also marketed under the trade name "Salcare SC10" by Ali Colloid.

The cosmetic composition may optionally include 0% by weight to 3% by weight, specifically 1% by weight to 1.5% by weight, based on the total weight of the cosmetic composition. Suitable pearlizing agents may include, but are not limited to, ethylene glycol distearate, ethylene glycol monostearate, and mixtures thereof.

Optionally, the cosmetic composition may further comprise one or more fragrances and / or colorants.

The cosmetic composition should be applied in an amount effective to alleviate symptoms associated with dandruff, seborrheic dermatitis, psoriasis and / or acne. The term "effective amount" means an amount sufficient to cover the area of the skin surface where the symptoms occur and to alleviate the symptoms associated with each disease.

The cosmetic composition may be topically applied to the affected body parts at regular intervals, specifically once to seven times a week. More specifically, the cosmetic composition is applied more frequently during the initial stages of treatment, for example four to seven times a week until the desired effect is achieved, and less often if preservation is intended, eg For example, it can be applied once or twice a week.

The cosmetic composition may be applied to a desired site so as not to be erased in a short time by remaining in the skin in the form of lotion, cream, gel and the like. In addition, the cosmetic composition is applied to the desired area in the form of a lotion, cream, gel, soap, shampoo and the like designed to be cleaned within a predetermined time after application.

In a preferred embodiment in which the cosmetic composition is incorporated into the shampoo, after applying the shampoo to wet hair, the hair is washed in a known practice. More specifically, the cosmetic composition may remain for about 0 minutes to about 10 minutes or more, preferably about 4 minutes to about 7 minutes, prior to cleaning.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

Preparation Example 1: Preparation of PO Mixture According to Surfactant Type

According to the composition shown in Table 1 to Table 4, sodium laureth sulfate as anionic surfactant, cocamidopropyl PG-dimonium chloride as cationic surfactant, amphoteric Cosorbidopropyl betaine as a surfactant and polysorbate 80 as a nonionic surfactant were added and completely dissolved. Thereafter, PO was added to each mixture, and the mixture was warmed up to 60 ° C., dissolved uniformly, and cooled to 40 ° C. SMBS and nicotinamide, which are easy to dissolve in the water phase, were directly added to the prepared mixture, and low solubility in butylated hydroxytoluene (BHT), ascorbyl palmitate and tocopheryl acetate acetate) was added to the prepared mixture after mixing on a separate solubilization phase.

Raw material Content (% by weight) Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Sodium laureth sulfate 5 5 5 5 5 5 5 5 5 PO - One One One One One One One One SMBS - - 0.2 0.1 0.05 - - - - Niacinamide - - - - - 0.2 - - - BHT - - - - - - 0.2 - - Ascorbyl palmitate - - - - - - - 0.2 - Tocopheryl acetate - - - - - - - - 0.2 Ethanol One One One One One One One One One PEG-40 Hydrogenated castoroil 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Water To 100%

Raw material Content (% by weight) Comparative Example 7 Comparative Example 8 Example 4 Example 5 Example 6 Comparative Example 9 Comparative Example 10 Comparative Example 11 Comparative Example 12 Cocamidopropyl PG-dimonium chloride 5 5 5 5 5 5 5 5 5 PO - One One One One One One One One SMBS - - 0.2 0.1 0.05 - - - - Niacinamide - - - - - 0.2 - - - BHT - - - - - - 0.2 - - Ascorbyl palmitate - - - - - - - 0.2 - Tocopheryl acetate - - - - - - - - 0.2 Ethanol One One One One One One One One One PEG-40 Hydrogenated castoroil 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Water To 100%

Raw material Content (% by weight) Comparative Example 13 Comparative Example 14 Example 7 Example 8 Example 9 Comparative Example 15 Comparative Example 16 Comparative Example 17 Comparative Example 18 Cocamidopropyl betaine 5 5 5 5 5 5 5 5 5 PO - One One One One One One One One SMBS - - 0.2 0.1 0.05 - - - - Niacinamide - - - - - 0.2 - - - BHT - - - - - - 0.2 - - Ascorbyl palmitate - - - - - - - 0.2 - Tocopheryl acetate - - - - - - - - 0.2 Ethanol One One One One One One One One One PEG-40 Hydrogenated castoroil 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Water To 100%

Raw material Content (% by weight) Comparative Example 19 Comparative Example 20 Example 10 Example 11 Example 12 Comparative Example 21 Comparative Example 22 Comparative Example 23 Comparative Example 24 Polysorbate 80 10 10 10 10 10 10 10 10 10 PO - One One One One One One One One SMBS - - 0.2 0.1 0.05 - - - - Niacinamide - - - - - 0.2 - - - BHT - - - - - - 0.2 - - Ascorbyl palmitate - - - - - - - 0.2 - Tocopheryl acetate - - - - - - - - 0.2 Ethanol One One One One One One One One One PEG-40 Hydrogenated castoroil 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Citric acid Quantity Water To 100%

Preparation Example 2: Preparation of Transparent Shampoo

According to the composition described in Table 5 below, a hair and scalp application composition in the form of a transparent shampoo was prepared. First, Sodium laureth sulfate, Cocamidopropyl Betaine, and Polysorbate 80 were sequentially added to the aqueous phase, and the mixture was warmed up to 60 ° C for complete dissolution. After the addition of PO was dissolved uniformly and cooled to 40 ℃. SMBS and Niacinamide, which are easy to dissolve in the water phase, were directly added to the prepared mixture, and BHT, Ascorbyl palmitate and Tocopheryl acetate having low solubility in the aqueous phase were added to the prepared mixture after mixing on a solubilized phase to prepare a transparent shampoo.

Raw material Content (% by weight) Comparative Example 25 Comparative Example 26 Example 13 Example 14 Example 15 Comparative Example 27 Comparative Example 28 Comparative Example 29 Comparative Example 30 Sodium laureth sulfate 5 5 5 5 5 5 5 5 5 Cocamidopropyl betaine 3 3 3 3 3 3 3 3 3 Polysorbate 80 2 2 2 2 2 2 2 2 2 PO - One One One One One One One One SMBS - - 0.2 0.1 0.05 - - - - Niacinamide - - - - - 0.2 - - - BHT - - - - - - 0.2 - - Ascorbyl palmitate - - - - - - - 0.2 - Tocopheryl acetate - - - - - - - - 0.2 Ethanol One One One One One One One One One PEG-40 Hydrogenated castoroil 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Citric acid Quantity Water To 100%

1 is a photograph showing the results of preparing a transparent shampoo composition in Comparative Example 25, Comparative Example 26 and Example 14.

Experimental Example 1: Evaluation of Stability

In order to evaluate the discoloration stability of the compositions prepared in Examples and Comparative Examples, each composition was placed in a transparent glass bottle and irradiated with a halogen lamp and visually observed for 3 months. Light irradiation through the halogen lamp was uniformly irradiated to each composition for 8 hours per day, and all the experimental conditions were the same.

The discoloration stability result of the composition prepared by the composition of Table 1-Table 5 is shown in following Tables 6-10.

term Comparative Example 1 Comparative Example 2 Example 1 Example 2 Example 3 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 day transparent Off White Off White Off White Off White Off White Off White Off White Off White 1 week transparent Light yellow Off White Off White Off White Off White Off White Light yellow Off White 1 month transparent yellow Off White Off White Light yellow Light yellow Light yellow yellow Light yellow 3 months transparent yellow Off White Off White Light yellow Light yellow Light yellow Dark yellow Light yellow

As a result of Table 6, under the conditions of using sodium laureth sulfate as an anionic surfactant, the results of visual observation on the day of manufacture in Comparative Examples 2 to 6 and Examples 1 to 3 including PO except for Comparative Example 1 not containing PO Indicated.

In Comparative Example 2, the yellow color became stronger as time passed. In particular, when Ascorbyl palmitate was included as shown in Comparative Example 5, it was found that the dark yellow color appeared after 3 months.

After 3 months, the compositions having the highest discoloration stability were Examples 1 to 3 including SMBS, and the discoloration stability was excellent in the order of Comparative Examples 3, 4 and 6 except for Comparative Example 5.

term Comparative Example 7 Comparative Example 8 Example 4 Example 5 Example 6 Comparative Example 9 Comparative Example 10 Comparative Example 11 Comparative Example 12 day transparent transparent transparent transparent transparent transparent transparent transparent transparent 1 week transparent Off White Off White Off White Off White Off White Off White Off White Off White 1 month transparent Light yellow Off White Off White Off White Light yellow Off White Light yellow Off White 3 months transparent Light yellow Off White Off White Off White Light yellow Off White Light yellow Off White

As shown in Table 7 above, under the conditions of using Cocamidopropyl PG-dimonium chloride as a cationic surfactant, Comparative Example 8, Comparative Examples 8 and 6, including PO, which were not prepared in PO, were prepared It was colorless and transparent as a result of visual observation on the day.

Comparative Example 8, Examples 4 to 6 and Comparative Examples 9 to 12 containing PO all became off-white with time, but after 3 months, Comparative Example 8, Comparative Example 9 and Comparative Example 11 showed pale yellow color.

In addition, in Examples 4 to 6, Comparative Example 10 and Comparative Example 12 it can be seen that no further discoloration.

term Comparative Example 13 Comparative Example 14 Example 7 Example 8 Example 9 Comparative Example 15 Comparative Example 16 Comparative Example 17 Comparative Example 18 day transparent transparent transparent transparent transparent transparent transparent transparent transparent 1 week transparent Off White Off White Off White Off White Off White Off White Off White Off White 1 month transparent Light yellow Off White Off White Off White Light yellow Light yellow Light yellow Light yellow 3 months transparent Light yellow Off White Off White Off White yellow yellow Light yellow yellow

As shown in Table 8 above, under the conditions of using Cocamidopropyl betaine as an amphoteric surfactant, Comparative Examples 14, Examples 7 to 9 and Comparative Examples 15 to 18, which did not contain PO, were visually observed on the day of preparation. Observation results were colorless and transparent.

Comparative Examples 14, Examples 7 to 9 and Comparative Examples 15 to 18 containing PO all became off-white as time passed, and after 3 months, Comparative Example 14 was pale yellow, in particular, Comparative Examples 15 to 16 and In Comparative Example 18, the color was darker than that of Comparative Example 14.

In addition, in Examples 7 to 9, no further discoloration was observed, showing the best discoloration stability, and then stable in the order of Comparative Example 17.

term Comparative Example 19 Comparative Example 20 Example 10 Example 11 Example 12 Comparative Example 21 Comparative Example 22 Comparative Example 23 Comparative Example 24 day transparent Off White Off White Off White Off White Off White Off White Off White Off White 1 week transparent Light yellow Off White Off White Off White Light yellow Off White Light yellow Light yellow 1 month transparent yellow Off White Off White Light yellow Light yellow Off White Light yellow yellow 3 months transparent yellow Off White Off White Light yellow Light yellow Off White Light yellow yellow

Visual observation results on the day of preparation in Comparative Examples 20, Examples 10 to 12 and Comparative Examples 21 to 24 except for Comparative Example 19, which did not include PO, under the conditions of using Polysorbate 80 as a nonionic surfactant as shown in Table 9 above. Off-white.

In Comparative Example 20, the pale yellow color became yellow after 1 month, and the most excellent compositions of discoloration stability after 3 months were Examples 10 to 12 and Comparative Example 22 including SMBS. Example 21 and Comparative Examples 23-24 did not show the discoloration prevention effect.

In particular, it can be seen that Comparative Example 24 is darker than Comparative Example 20 and is not suitable as a discoloration preventing agent.

term Comparative Example 25 Comparative Example 26 Example 13 Example 14 Example 15 Comparative Example 27 Comparative Example 28 Comparative Example 29 Comparative Example 30 day transparent Off White Off White Off White Off White Off White Off White Off White Off White 1 week transparent Light yellow Off White Off White Off White Light yellow Off White Light yellow Light yellow 1 month transparent yellow Off White Off White Light yellow Light yellow Light yellow yellow yellow 3 months transparent yellow Off White Off White Light yellow Light yellow Light yellow yellow yellow

As a result of confirming discoloration stability in the transparent shampoo composition as shown in Table 10, the visual observation result on the day of manufacture in Comparative Examples 26, Examples 13 to 15 and Comparative Examples 27 to 30 except for Comparative Example 25 that does not contain PO Indicated. After 3 months, the compositions having the highest discoloration stability were Examples 13 to 14, and it was found that the discoloration preventing effect was obtained in the order of Example 15 and Comparative Examples 27 to 30.

In particular, it was found that Ascorbyl palmitate and Tocopherol acetate used in Comparative Examples 29 and 30 are not suitable as discoloration inhibitors.

In summary, although the degree of discoloration may vary depending on the type of surfactant in the composition containing PO, discoloration may occur under all conditions. In particular, all of the compositions including SMBS as antioxidants are excellent. It was confirmed that discoloration prevention effect appeared.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims (5)

Pyroctone olamine (PO), and
Cosmetic composition comprising an antioxidant as an active ingredient. The method of claim 1,
The antioxidant is metabisulfite salt, niacinamide, butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), ascorbyl palmitate, tocopheryl acetate ( tocopheryl acetate), ascorbic acid, N-acetylcysteine, and a mixture thereof. The method of claim 1,
Wherein the antioxidant is a cosmetic composition comprising 0.01% by weight to 1% by weight based on the total composition. The method of claim 1,
The cosmetic composition is butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), nicotinamide (Niacinamide), ascorbyl palmitate, tocopheryl acetate (ascorbic acid), ascorbic acid, N A cosmetic composition further comprising any one of antioxidants selected from the group consisting of -acetyl-cysteine, sodium metabisulfite and mixtures thereof. The method of claim 4, wherein
Wherein the antioxidant is a cosmetic composition comprising 0.01% by weight to 2% by weight based on the entire composition.

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