Composition as well as preparation method and application thereof

Abstract

The invention discloses a composition as well as a preparation method and application thereof. The composition comprises the following components in percentage by weight: 0.1-1% of an oil-soluble whitening agent, 1-30% of an emollient, 0.01-1% of a fading agent, 0.1-6% of vitamin C or a vitamin C derivative, 1-20% of a humectant, 0.1-11.5% of a preservative, 0.01-1% of a pH regulator, 0.00001-0.1% of a coloring agent and 0.01-1% of a chelating agent. Vitamin C and derivatives thereof are added to a water phase, an oil-soluble whitening agent is added to an oil phase, the composition is prepared into a water-oil phase two-layer product, a thickening agent and an emulsifying agent are not added, the problem that thickening is difficult is solved, a good skin feeling is brought, and the sticky feeling and the thick feeling caused by a large number of thickening agents are avoided; according to the composition disclosed by the invention, the water phase is adjusted into a color which can be changed by using the coloring agent, color change possibly caused by vitamin C and derivatives thereof is avoided, the oil phase is added into the fading agent, the color brought by the oil-soluble whitening agent is deepened, and the problem of color change is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and in particular to a composition and a preparation method and application thereof. Background Art

[0002] With the improvement of living standards, people's demand for appearance, especially facial beauty, is also constantly increasing. A white and shiny face is the pursuit of most Asians, and whitening and freckle removal has become one of the most important sectors in functional skin care products. In order to achieve whitening, according to the mechanism of whitening, there are generally several paths in personal care, namely, scavenging free radicals, inhibiting tyrosinase activity, anti-oxidation, inhibiting melanin transfer, accelerating keratin renewal, etc. Resorcinol derivatives such as 4-butylresorcinol and phenylethylresorcinol are recognized as potent tyrosinase inhibitors. Vitamin C and its derivatives such as ascorbyl glyceryl glucoside are commonly used antioxidants in whitening products, which can scavenge free radicals and inhibit the conversion of tyrosine into dopa. Among them, the use of 7% vitamin C is the whitening and freckle removal efficacy test method specified in the Cosmetic Safety Technical Specifications.

[0003] However, resorcinol derivatives are difficult to pass stability tests in cosmetic formulas due to their large molecular weight and vitamin C and its derivatives are difficult to pass stability tests due to their strong ionicity. After being added to the formula, the system is prone to loss of consistency, stratification and discoloration. There are generally three solutions to this problem: 1. Reduce the content of the above two active ingredients. The disadvantage is that the efficacy is weak and the effect of rapid whitening cannot be achieved. 2. Increase the amount of thickener added. The disadvantage is that the skin feels heavy and easy to be sticky, which affects the user's pleasant experience. 3. Make vitamin C and its derivatives into powder separately, and mix them with lotion and cream when using. The disadvantage is that they need to be made into two dosage forms, which has higher requirements for packaging and mixing tools.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention provides a composition and a preparation method and application thereof, so as to solve the problems that resorcinol derivatives, vitamin C and its derivatives are difficult to thicken, easy to change color and have weak efficacy in whitening and spot-removing products.

[0006] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0007] The first aspect of the present invention provides a composition, which comprises, by weight percentage, 0.1-1% of an oil-soluble whitening agent, 1-30% of an emollient, 0.01-1% of a decolorizing agent, 0.1-6% of vitamin C or a vitamin C derivative, 1-20% of a moisturizer, 0.1-11.5% of a preservative, 0.01-1% of a pH adjuster, 0.00001%-0.1% of a colorant, and 0.01-1% of a chelating agent.

[0008] Preferably, the oil-soluble whitening agent is selected from 4-butylresorcinol and phenethylresorcinol.

[0009] Preferably, the emollient is selected from one or more of pentaerythritol tetra(ethylhexanoate), isononyl isononanoate, caprylic / capric triglyceride, C12-15 alcohol benzoate, hydrogenated polyisobutene, octyldodecanol, and squalane, and the depigmenting agent is selected from one or two of sea buckthorn fruit oil and carrot root extract.

[0010] Preferably, the vitamin C or vitamin C derivative is selected from ascorbic acid, 3-o-ethyl ascorbic acid, and ascorbic acid phosphate.

[0011] Preferably, the moisturizer is selected from two or more of glycerol, butylene glycol, betaine, polyethylene glycol, and glycerol glucose, and the preservative is selected from one or more of o-cymene-5-ol, ethylhexylglycerol, 1,2-hexanediol, phenoxyethanol, p-hydroxyacetophenone, propylene carbonate, and caprylhydroxamic acid.

[0012] Preferably, the pH regulator is selected from one or more of arginine, aminomethyl propanol, tromethamine, and triethanolamine.

[0013] Preferably, the colorant is selected from one or more of CI 42090, CI 19140, CI 16035, and CI 17200, and the chelating agent is disodium ethylenediaminetetraacetic acid.

[0014] The second aspect of the present application provides a method for preparing a composition, the preparation method comprising the following steps:

[0015] Add the oil-soluble whitening agent and depigmenting agent to the emollient, heat until dissolved and transparent, then cool to 45 degrees to form an oil phase;

[0016] Add vitamin C or vitamin C derivatives, moisturizers, preservatives, pH adjusters, colorants and chelating agents into a container, adjust the pH to 4.0-6.0, and form an aqueous phase;

[0017] The oil phase and the water phase are mixed to obtain the composition.

[0018] The third aspect of the present application provides a use of the above-mentioned composition in the preparation of cosmetics.

[0019] In a fourth aspect of the present application, a cosmetic is provided, comprising the above-mentioned composition.

[0020] Beneficial effects:

[0021] Based on the shortcomings of resorcinol derivatives, vitamin C and its derivatives in whitening and spot-lightening products, such as difficulty in thickening, easy discoloration, and weak efficacy, the present invention discloses a composition, a preparation method and application thereof. The composition provided by the present invention adds vitamin C and its derivatives to the water phase, and adds an oil-soluble whitening agent (resorcinol derivative) to the oil phase, and the composition is made into a two-layer product of water and oil phases, without adding thickeners and emulsifiers, which solves the problem of difficult thickening, brings good skin feel, and avoids the stickiness and heaviness caused by a large amount of thickeners; the composition provided by the present invention adjusts the water phase with a colorant to a possible color, avoids the possible discoloration caused by vitamin C and its derivatives, adds a fading agent to the oil phase, offsets the color deepening caused by resorcinol derivatives, and solves the discoloration problem; the composition provided by the present invention also ensures the efficacy of the product, and high content of vitamin C and its derivatives and resorcinol derivatives can be realized in the product. DETAILED DESCRIPTION

[0022] The present invention provides a composition and a preparation method and application thereof. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The embodiment of the present invention provides a composition, which comprises, by weight percentage, 0.1-1% of an oil-soluble whitening agent, 1-30% of an emollient, 0.01-1% of a depigmenting agent, 0.1-6% of vitamin C or a vitamin C derivative, 1-20% of a moisturizing agent, 0.1-11.5% of a preservative, 0.01-1% of a pH regulator, 0.00001%-0.1% of a colorant, and 0.01-1% of a chelating agent. The oil-soluble whitening agent, the emollient, and the depigmenting agent constitute an oil phase, and the vitamin C or a vitamin C derivative, the moisturizing agent, the preservative, the pH regulator, the colorant, and the chelating agent constitute an aqueous phase.

[0024] The composition provided by the embodiment of the present invention adds water-soluble vitamin C and its derivatives to the water phase, and adds oil-soluble oil-soluble whitening agent (resorcinol derivative) to the oil phase, and makes the composition into a two-layer product of water and oil phase without adding thickener and emulsifier, thereby solving the problem of difficult thickening, bringing good skin feel, avoiding the stickiness and heaviness caused by a large amount of thickener, and also reducing the irritation caused by the emulsifier; the composition provided by the embodiment of the present invention adjusts the water phase to a possible color with a colorant to avoid the possible discoloration caused by vitamin C and its derivatives, and adds a fading agent to the oil phase to offset the color deepening caused by the resorcinol derivative, thereby solving the discoloration problem; the composition provided by the present invention also ensures the product efficacy, and a high content of vitamin C derivatives and resorcinol derivatives can be achieved in the product.

[0025] In some embodiments, the oil-soluble whitening agent is selected from one of 4-butylresorcinol and phenethylresorcinol.

[0026] In some embodiments, the emollient is selected from one or more of pentaerythritol tetra(ethylhexanoate), isononyl isononanoate, caprylic / capric triglyceride, C12-15 alcohol benzoate, hydrogenated polyisobutene, octyldodecanol, and squalane, and the depigmenting agent is selected from one or two of sea buckthorn fruit oil and carrot root extract.

[0027] In some embodiments, the vitamin C or vitamin C derivative is selected from ascorbic acid, 3-o-ethyl ascorbic acid, and ascorbic acid phosphate.

[0028] In some embodiments, the moisturizer is selected from two or more of glycerin, butylene glycol, betaine, polyethylene glycol, and glycerol glucose, and the preservative is selected from one or more of o-cymene-5-ol, ethylhexylglycerol, 1,2-hexanediol, phenoxyethanol, p-hydroxyacetophenone, propylene carbonate, and caprylhydroxamic acid.

[0029] In some embodiments, the pH regulator is selected from one or more of arginine, aminomethyl propanol, tromethamine, and triethanolamine.

[0030] In some embodiments, the colorant is selected from one or more of CI 42090 (Brilliant Blue), CI 19140 (Lemon Yellow), CI 16035 (Curry Red), and CI 17200 (Acid Red 33), and the chelating agent is disodium ethylenediaminetetraacetic acid.

[0031] An embodiment of the present invention provides a method for preparing a composition, the preparation method comprising the following steps:

[0032] Add the oil-soluble whitening agent and depigmenting agent to the emollient, heat until dissolved and transparent, then cool to 45 degrees to form an oil phase;

[0033] Add vitamin C or vitamin C derivatives, moisturizers, preservatives, pH adjusters, colorants and chelating agents into a container, adjust the pH to 4.0-6.0, and form an aqueous phase;

[0034] The oil phase and the water phase are mixed to obtain the composition.

[0035] The process provided by the embodiment of the present invention is simpler and does not require high-speed emulsification and homogenization. Specifically, the whitening agent is heated because the whitening agent is a powder and needs to be heated and dissolved with an oil ester, and the pH is adjusted to 4.0-6.0 because the pH is acidic or weakly acidic, which is beneficial to the stability of the resorcinol derivative.

[0036] In some embodiments, the method for preparing the composition comprises the following steps:

[0037] Add the oil-soluble whitening agent and decolorizing agent to the emollient, heat to 70-80 degrees to dissolve and become transparent, then cool to 45 degrees to form an oil phase;

[0038] Add vitamin C or vitamin C derivatives, moisturizers, preservatives, pH adjusters, colorants and chelating agents into a container, adjust the pH to 4.0-6.0, and form an aqueous phase;

[0039] The oil phase and the water phase are mixed to obtain the composition.

[0040] An embodiment of the present invention provides an application of the above composition in preparing cosmetics.

[0041] An embodiment of the present invention provides a cosmetic comprising the above-mentioned composition.

[0042] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, and are only for illustrating the present invention but not limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0043] Example 1

[0044] A preparation method of a composition comprises the following steps:

[0045] Add the oil-soluble whitening agent and decolorizing agent to the emollient, heat to 70-80 degrees until dissolved and transparent, then cool to 45 degrees for later use. Add the water-phase raw materials to the water pot in sequence, and adjust the pH to 4.0-6.0. Add the water and oil phases to the cosmetic container according to the mass percentage, and shake it before use.

[0046] Among them, the oil-soluble whitening agent is 0.50 parts by mass of phenylethyl resorcinol, the emollient is 3.00 parts by mass of pentaerythritol tetra(ethylhexanoate), 5.00 parts by mass of octyldodecanol and 10.00 parts by mass of squalane, the decolorizing agent is 0.30 parts by mass of sea buckthorn fruit oil; the vitamin C or vitamin C derivative is 2.00 parts by mass of 3-o-ethyl ascorbic acid, the moisturizer is 5.00 parts by mass of glycerin, 2.00 parts by mass of betaine and 5.00 parts by mass of butylene glycol, and the colorant is disodium ethylenediaminetetraacetic acid.

[0047] Example 2

[0048] A preparation method of a composition, the method of this embodiment is basically the same as that of embodiment 1, except that the decolorizing agent is 0.30 parts by weight of carrot root extract.

[0049] Comparative Example 1

[0050] A preparation method of a composition, the comparative example method is basically the same as that of Example 1, the only difference is that: no decolorizing agent sea buckthorn fruit oil is added.

[0051] Comparative Example 2

[0052] A preparation method of a composition. The comparative example method is basically the same as that of Example 1, except that no seabuckthorn fruit oil and pigment are added, and 0.30 parts by weight of carrot extract is added.

[0053] Comparative Example 3

[0054] Preparation of a composition. The method of this comparative example is basically the same as that of Example 1, except that 2.00 parts by mass of polyglycerol-10 stearate and 1.00 parts by mass of ammonium acryloyldimethyl taurate / VP copolymer are added. The polyglycerol-10 stearate is added to the oil phase and heated to dissolve. The ammonium acryloyldimethyl taurate / VP copolymer is added to the water phase.

[0055] Comparative Example 4

[0056] A composition is prepared. The comparative example method is basically the same as that of Example 1, except that: 2.00 parts by mass of polyglycerol-10 stearate, 0.50 parts by mass of betaine, 1.00 parts by mass of ammonium acryloyldimethyl taurate / VP copolymer and 0.50 parts by mass of polyacrylate crosslinked polymer-6 are added, wherein polyglycerol-10 stearate is added to the oil phase and heated together to dissolve, and ammonium acryloyldimethyl taurate / VP copolymer and polyacrylate crosslinked polymer-6 are added to the water phase and stirred to be uniformly dispersed.

[0057] Comparative Example 5

[0058] Preparation of a composition, the method of this comparative example is basically the same as that of Example 1, except that: 2.00 parts by mass of polyglycerol-10 stearate, 2.00 parts by mass of SENSANOV WR [C20-22 alcohol phosphate, C20-22 alcohol], 0.50 parts by mass of betaine, 1.00 parts by mass of ammonium acryloyldimethyl taurate / VP copolymer and 0.50 parts by mass of polyacrylate crosslinked polymer-6 are added. Among them, polyglycerol-10 stearate and SENSANOV WR [C20-22 alcohol phosphate, C20-22 alcohol] are added to the oil phase, heated together to dissolve, and ammonium acryloyldimethyl taurate / VP copolymer and polyacrylate crosslinked polymer-6 are added to the water phase and stirred to be uniformly dispersed.

[0059] Specifically, the raw materials and amounts of Examples 1-2 and Comparative Examples 1-5 are shown in Table 1 below.

[0060] Table 1

[0061]

[0062]

[0063] The compositions prepared in Examples 1-2 and Comparative Examples 1-5 were subjected to stability tests, and the test scheme was as follows:

[0064] The prepared composition was packaged into 15 mL glass bottles and labeled.

[0065] Test environment: heat resistance (45℃) for three months, cold resistance (-10℃) for three months, hot and cold alternating cycle (-15℃-25℃) for one month, and room temperature shelf for three months. The test results are shown in Table 2 below.

[0066] Table 2

[0067]

[0068]

[0069] The above table shows that the composition prepared in Example 1-2 has no obvious difference in properties after returning to room temperature after being heat-resistant (45°C) for three months, cold-resistant (-10°C) for three months, hot and cold alternating cycles (-15°C-25°C) for one month, and stored at room temperature for three months, and the skin feels refreshed and non-sticky.

[0070] The composition prepared in Comparative Example 1 changes the color of the oil phase from colorless to red during the three months of heat resistance (45°C), three months of cold resistance (-10°C), one month of alternating hot and cold cycles (-15°C-25°C), and three months of shelf storage at room temperature. After the other test conditions are restored to room temperature, there is no obvious difference in properties from before the test, and the skin feels refreshed and not sticky.

[0071] The composition prepared in Comparative Example 2 showed a change in color of the aqueous phase from colorless to yellow during the experiments of heat resistance (45°C) for three months, cold resistance (-10°C) for three months, alternating hot and cold cycles (-15°C-25°C) for one month, and shelf storage at room temperature for three months. After the other test conditions were restored to room temperature, there was no obvious difference in properties compared with before the test, and the skin felt refreshed and not sticky.

[0072] The composition prepared in Comparative Examples 3-4 was heat-resistant (45°C) for three months, cold-resistant (-10°C) for three months, hot and cold alternating cycles (-15°C-25°C) for one month, and stored on the shelf at room temperature for three months. After returning to room temperature, it was heat-resistant (45°C) and stratified. There was no obvious difference in properties between the other test conditions and before the test, and the skin felt thick and sticky.

[0073] The composition prepared in Comparative Example 5 had no significant difference in properties after returning to room temperature after three months of heat resistance (45°C), three months of cold resistance (-10°C), one month of alternating hot and cold cycles (-15°C-25°C), and three months of shelf storage at room temperature. It had no significant difference in properties after returning to room temperature after oil was produced under heat resistance (45°C), and no significant difference in properties before the test under other test conditions, and the skin felt thick and sticky.

[0074] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A composition, characterized in that The composition comprises, by weight percentage, 0.1-1% of an oil-soluble whitening agent, 1-30% of an emollient, 0.01-1% of a decolorizing agent, 0.1-6% of vitamin C or a vitamin C derivative, 1-20% of a moisturizing agent, 0.1-11.5% of a preservative, 0.01-1% of a pH regulator, 0.00001%-0.1% of a colorant, and 0.01-1% of a chelating agent.

2. The composition according to claim 1, characterized in that The oil-soluble whitening agent is selected from one of 4-butylresorcinol and phenethylresorcinol.

3. The composition according to claim 1, characterized in that The emollient is selected from one or more of pentaerythritol tetra(ethylhexanoate), isononyl isononanoate, caprylic / capric triglyceride, C12-15 alcohol benzoate, hydrogenated polyisobutene, octyldodecanol, and squalane, and the depigmenting agent is selected from one or two of sea buckthorn fruit oil and carrot root extract.

4. The composition according to claim 1, characterized in that The vitamin C or vitamin C derivative is selected from one of ascorbic acid, 3-o-ethyl ascorbic acid and ascorbic acid phosphate.

5. The composition according to claim 1, characterized in that The moisturizer is selected from two or more of glycerin, butylene glycol, betaine, polyethylene glycol, and glycerol glucose; the preservative is selected from one or more of o-cymene-5-ol, ethylhexylglycerol, 1,2-hexanediol, phenoxyethanol, p-hydroxyacetophenone, propylene carbonate, and caprylhydroxamic acid.

6. The composition according to claim 1, characterized in that The pH regulator is selected from one or more of arginine, aminomethyl propanol, tromethamine, and triethanolamine.

7. The composition according to claim 1, characterized in that The colorant is selected from one or more of CI 42090, CI 19140, CI 16035 and CI 17200, and the chelating agent is disodium ethylenediaminetetraacetate.

8. A method for preparing the composition according to claim 1, characterized in that: The preparation method comprises the following steps: Add the oil-soluble whitening agent and depigmenting agent to the emollient, heat until dissolved and transparent, then cool to 45 degrees to form an oil phase; Add vitamin C or vitamin C derivatives, moisturizers, preservatives, pH adjusters, colorants and chelating agents into a container, adjust the pH to 4.0-6.0, and form an aqueous phase; The oil phase and the water phase are mixed to obtain the composition.

9. Use of the composition according to claim 1 in preparing cosmetics.

10. A cosmetic, characterized in that: The cosmetic comprises the composition according to claim 1.

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