Cosmetic with whitening and sunscreen functions and preparation method thereof

Abstract

The invention relates to the field of cosmetics, in particular to a cosmetic with whitening and sunscreen functions and a preparation method thereof. The whitening and sunscreen composition is prepared from the following components in percentage by mass: 0.5 percent to 5 percent of melanin, 0.1 percent to 0.5 percent of allantoin, 0.1 percent to 1 percent of ferulic acid, 0.01 percent to 0.05 percent of astaxanthin and 0.1 percent to 0.5 percent of orotic acid, and the balance of water. A chemical sun-screening agent and a physical sun-screening agent are compounded, so that an inner phase and an outer phase of the cosmetic both contain the sun-screening agents, and refuge and sun-screening holes can be furthest realized. The melanin, the allantoin, the ferulic acid, the astaxanthin and the orotic acid are compounded according to a specific proportion and are compounded in the cosmetic formula, so that the ultraviolet absorption of the cosmetic can be further improved, the wound healing is accelerated, the energy of free radicals is strongly removed, inflammatory factors are inhibited, the skin renewal is promoted, the pathway is combined, and the sunscreen effect of the product is further improved.

Description

Technical Field

[0001] The present application relates to the field of cosmetics, and more specifically, to a cosmetic with whitening and sunscreen functions and a preparation method thereof. Background Art

[0002] At present, common sunscreen products are divided into physical sunscreen products and chemical sunscreen products. However, each of them has some shortcomings and cannot meet the needs in the market.

[0003] Physical sunscreen mainly reduces the damage of ultraviolet rays by reflecting and scattering sunlight. Common physical sunscreens include zinc oxide and titanium dioxide. They form a protective film on the surface of the skin to reflect ultraviolet rays, thereby preventing ultraviolet rays from penetrating deep into the skin.

[0004] Chemical sunscreen mainly reduces the destructive power of ultraviolet rays by absorbing and converting them. Chemical sunscreens are often used. They absorb ultraviolet rays on the surface of the skin and convert them into heat and release them, thus avoiding direct damage to the skin by ultraviolet rays.

[0005] Physical sunscreens do not penetrate deep into the skin, so they do not cause irritation or allergic reactions to the skin. Physical sunscreens form a protective film on the skin surface that can continuously resist the damage of ultraviolet rays. However, physical sunscreens form a thick white film on the skin surface, which can easily make people feel that the skin is not breathable. Chemical sunscreens can absorb ultraviolet rays and convert them into heat and release them, so they do not cause irritation or discomfort to the skin. Some chemical sunscreens may penetrate deep into the skin and cause irritation or allergic reactions to the skin. Chemical sunscreens are relatively poor in durability and need to be reapplied frequently to maintain their effects.

[0006] At present, these two common sunscreen products on the market have sun protection gaps and single functions. Summary of the invention

[0007] The purpose of the embodiments of the present application is to provide a cosmetic with whitening and sunscreen functions and a preparation method thereof, which can realize the combination of physical sunscreen and physical sunscreen, and can avoid sunscreen voids to the greatest extent.

[0008] In a first aspect, the present application provides a cosmetic having whitening and sunscreen functions, wherein the cosmetic comprises, by mass percentage:

[0009] 9%-28% chemical sunscreen, 1%-8% physical sunscreen, 15%-35% emollient, 1%-10% skin feel regulator, 0.1%-10% skin conditioner, 1%-10% moisturizer, 0.2%-2% thickener, 0.1%-5% emulsifier, 0.01%-2% pH regulator, 1%-10% whitening sunscreen composition;

[0010] Wherein, the whitening sunscreen composition includes, by mass percentage: 0.5% to 5% melanin, 0.1% to 0.5% allantoin, 0.1% to 1% ferulic acid, 0.01% to 0.05% astaxanthin, 0.1% to 0.5% orotic acid; and the balance is water.

[0011] In the above technical scheme, chemical sunscreens and physical sunscreens are compounded, so that the internal and external phases of the cosmetics contain sunscreens, which can avoid sunscreen holes to the greatest extent. Furthermore, the cosmetics of the present application are compounded in a specific ratio by melanin, allantoin, ferulic acid, astaxanthin, and orotic acid, and compounded in the above cosmetic formula, which can further improve the energy of cosmetics to absorb ultraviolet rays, accelerate wound healing, effectively scavenge free radicals, inhibit inflammatory factors, promote skin renewal, and combine pathways to further improve the sunscreen efficiency of the product and avoid sunscreen holes to the greatest extent. At the same time, the cosmetics have a whitening effect; the effects of the cosmetics are diversified.

[0012] In other embodiments of the present application, the above-mentioned whitening sunscreen composition includes, by mass percentage: 0.5% to 2% melanin, 0.2% to 0.5% allantoin, 0.1% to 0.6% ferulic acid, 0.02% to 0.05% astaxanthin, 0.1% to 0.5% orotic acid; and the remainder is water.

[0013] In other embodiments of the present application, the whitening sunscreen composition includes, by mass percentage: 0.5% to 2% melanin, 0.2% to 0.5% allantoin, 0.2% to 0.6% ferulic acid, 0.02% to 0.05% astaxanthin, 0.1% to 0.3% orotic acid; and the remainder is water.

[0014] In other embodiments of the present application, the chemical sunscreen includes, by mass percentage: 8%-20% oil-soluble sunscreen, 1%-8% water-soluble sunscreen.

[0015] In other embodiments of the present application, the oil-soluble sunscreen includes: ethylhexyl methoxycinnamate, ethylhexyl salicylate, diethylamino hydroxybenzoyl hexyl benzoate;

[0016] Optionally, the water-soluble sunscreen includes: phenylbenzimidazole sulfonic acid.

[0017] In other embodiments of the present application, the physical sunscreen includes: titanium dioxide;

[0018] Optionally, the particle size of titanium dioxide is greater than or equal to 30 nanometers and less than or equal to 100 nanometers.

[0019] In other embodiments of the present application, the chemical sunscreen includes: ethylhexyl methoxycinnamate, ethylhexyl salicylate, diethylamino hydroxybenzoyl hexyl benzoate, and phenylbenzimidazole sulfonic acid.

[0020] In other embodiments of the present application, the emollient includes: cyclopentasiloxane, polydimethylsiloxane, vegetable oil, mineral oil, synthetic ester oil, silicone oil;

[0021] Optionally, the skin feel modifier comprises: silica;

[0022] Optionally, the thickener includes: isononyl isononanoate, disteardimethylammonium hectorite, acrylic acid (esters) / ethylhexyl acrylate / polydimethylsiloxane methacrylate copolymer;

[0023] Optionally, the emulsifier includes: Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone;

[0024] Optionally, the skin conditioning agent includes: niacinamide, 4-butylresorcinol, soluble collagen;

[0025] Optionally, the humectant comprises: glycerin.

[0026] In other embodiments of the present application, the cosmetics with whitening and sunscreen functions are of an oil-in-water structure; the water phase is the inner phase; and the oil phase is the outer phase.

[0027] In a second aspect, the present application provides a method for preparing cosmetics with whitening and sunscreen functions, comprising:

[0028] Add oil-soluble sunscreen, physical sunscreen, emollient, skin feel regulator, emulsifier and thickener into an emulsifying pot and heat to 75°C to 95°C to obtain an oil phase mixture;

[0029] Add a water-soluble sunscreen and a pH adjuster into a water phase pot, and heat to 75°C to 95°C to obtain a water phase mixture;

[0030] adding the aqueous phase mixture to the oil phase mixture and homogenizing to obtain a homogenous mixture;

[0031] To the homogenous mixture, add skin conditioning agent, whitening sunscreen composition. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0033] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0034] The embodiment of the present application provides a cosmetic with whitening and sunscreen functions, and the cosmetic comprises, by mass percentage:

[0035] 9%-28% chemical sunscreen, 1%-8% physical sunscreen, 15%-35% emollient, 1%-10% skin feel regulator, 0.1%-10% skin conditioner, 1%-10% moisturizer, 0.2%-2% thickener, 0.1%-5% emulsifier, 0.01%-2% pH regulator, 1%-10% whitening sunscreen composition;

[0036] Wherein, the whitening sunscreen composition includes, by mass percentage: 0.5% to 5% melanin, 0.1% to 0.5% allantoin, 0.1% to 1% ferulic acid, 0.01% to 0.05% astaxanthin, 0.1% to 0.5% orotic acid; and the balance is water.

[0037] In the above technical solution, chemical sunscreens and physical sunscreens are compounded, so that the internal and external phases of the cosmetics contain sunscreens, which can avoid sunscreen holes to the greatest extent. Furthermore, the cosmetics of the present application are compounded in a specific ratio by melanin, allantoin, ferulic acid, astaxanthin, and orotic acid, and compounded in the above cosmetic formula, which can further improve the energy of cosmetics to absorb ultraviolet rays, accelerate wound healing, effectively scavenge free radicals, inhibit inflammatory factors, promote skin renewal, and combine pathways to further improve the sunscreen efficiency of the product and avoid sunscreen holes to the greatest extent. At the same time, the cosmetics have a whitening effect; the effects of the cosmetics are diversified.

[0038] Furthermore, the above-mentioned cosmetics with whitening and sunscreen functions of the present application have a mild formula, low irritation, and a refreshing skin feel.

[0039] Further, in some embodiments of the present application, the cosmetic comprises, by mass percentage:

[0040] 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28% or a range between any two of the foregoing chemical sunscreens;

[0041] 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8% or a range between any two of the foregoing physical sunscreens;

[0042] 15%, 18%, 20%, 22%, 25%, 28%, 30%, 31%, 32%, 33%, 34%, 35% or a range between any two of the foregoing emollients;

[0043] 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10% or a range between any two of the foregoing skin feel regulators;

[0044] 0.1%, 0.5%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10% or a range between any two of the foregoing skin conditioning agents;

[0045] 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10% or a range between any two of the foregoing values ​​of moisturizer;

[0046] 0.2%, 0.3%, 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2% or a range between any two of the foregoing thickeners;

[0047] 0.1%, 0.5%, 0.8%, 1%, 1.5%, 1.8%, 2.5%, 2.8%, 3%, 3.5%, 4%, 4.5%, 5% or a range between any two of the foregoing emulsifiers;

[0048] 0.01%, 0.02%, 0.05%, 0.08%, 0.1%, 0.5%, 0.8%, 1%, 1.2%, 1.5%, 1.8%, 2% or a range between any two of the foregoing pH adjusters;

[0049] 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10% or a range between any two of the foregoing values ​​of the whitening sunscreen composition.

[0050] Furthermore, the whitening sunscreen composition includes, by mass percentage: 0.5% to 5% melanin, 0.1% to 0.5% allantoin, 0.1% to 1% ferulic acid, 0.01% to 0.05% astaxanthin, 0.1% to 0.5% orotic acid; and the balance is water.

[0051] In the above technical scheme, by compounding the components of melanin, allantoin, ferulic acid, astaxanthin and orotic acid, and controlling the content of each component within the above range, a synergistic effect can be achieved, and multi-angle and multi-channel sun protection and whitening effects can be achieved from multiple angles and combined pathways.

[0052] In the above technical scheme, melanin, allantoin, ferulic acid, astaxanthin and orotic acid are compounded according to the above ratio, which can improve the whitening effect and sun protection efficiency of the product to a certain extent by absorbing ultraviolet rays, accelerating wound healing, effectively removing the energy of free radicals, inhibiting inflammatory factors, and promoting skin renewal.

[0053] Illustratively, in some embodiments of the present application, the whitening sunscreen composition includes: 0.5%, 0.8%, 1%, 1.5%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5% or a range between any two of the foregoing values ​​of melanin;

[0054] 0.1%, 0.2%, 0.3%, 0.4%, 0.5% or a range between any two of the foregoing values ​​of allantoin;

[0055] 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1% or a range between any two of the foregoing ferulic acid;

[0056] 0.01%, 0.02%, 0.03%, 0.04%, 0.05% or a range between any two of the foregoing astaxanthin;

[0057] 0.1%, 0.2%, 0.3%, 0.4%, 0.5% or a range between any two of the foregoing values ​​of orotic acid; the balance being water.

[0058] Further optionally, in some embodiments of the present application, the whitening sunscreen composition includes, by mass percentage: 0.5% to 2% melanin, 0.2% to 0.5% allantoin, 0.1% to 0.6% ferulic acid, 0.02% to 0.05% astaxanthin, 0.1% to 0.5% orotic acid; and the remainder is water.

[0059] Further optionally, in some embodiments of the present application, the whitening sunscreen composition includes, by mass percentage: 0.5% to 2% melanin, 0.2% to 0.5% allantoin, 0.2% to 0.6% ferulic acid, 0.02% to 0.05% astaxanthin, 0.1% to 0.3% orotic acid; and the remainder is water.

[0060] Furthermore, in some embodiments of the present application, the chemical sunscreen comprises, by mass percentage: 8%-20% oil-soluble sunscreen, 1%-8% water-soluble sunscreen.

[0061] In the above technical solution, the oil-soluble sunscreen and the water-soluble sunscreen are compounded, so that the cosmetics with whitening and sunscreen functions can form an oil-in-water structure, with the water phase as the inner phase and the oil phase as the outer phase. This makes the inner and outer phases of the cosmetics contain sunscreen, which can avoid sunscreen voids to the greatest extent.

[0062] Exemplarily, in some embodiments of the present application, the chemical sunscreen includes, by mass percentage: 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20% or an oil-soluble sunscreen in a range between any two of the foregoing values;

[0063] 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8% or a range between any two of the foregoing water-soluble sunscreen agents.

[0064] Furthermore, in some embodiments of the present application, the oil-soluble sunscreen includes: ethylhexyl methoxycinnamate, ethylhexyl salicylate, and diethylaminohydroxybenzoyl hexyl benzoate.

[0065] For example, in some embodiments of the present application, the oil-soluble sunscreen includes any one of ethylhexyl methoxycinnamate, ethylhexyl salicylate, and diethylamino hydroxybenzoyl hexyl benzoate; or the oil-soluble sunscreen includes a mixture of ethylhexyl methoxycinnamate and ethylhexyl salicylate; or the oil-soluble sunscreen includes a mixture of ethylhexyl salicylate and diethylamino hydroxybenzoyl hexyl benzoate; or the oil-soluble sunscreen includes a mixture of ethylhexyl methoxycinnamate, ethylhexyl salicylate, and diethylamino hydroxybenzoyl hexyl benzoate. The raw materials in the above mixtures can be mixed in any proportion.

[0066] Furthermore, in some embodiments of the present application, the water-soluble sunscreen agent includes: phenylbenzimidazole sulfonic acid.

[0067] Furthermore, in some embodiments of the present application, the physical sunscreen includes: titanium dioxide.

[0068] Furthermore, in some embodiments of the present application, the particle size of titanium dioxide is greater than or equal to 30 nanometers and less than or equal to 100 nanometers.

[0069] In the above technical solution, the particle size of titanium dioxide is greater than or equal to 30 nanometers and less than or equal to 100 nanometers; it can achieve the sun protection function and produce a whitening effect.

[0070] Illustratively, in some embodiments of the present application, the particle size of titanium dioxide is 30 nanometers, 32 nanometers, 35 nanometers, 38 nanometers, 40 nanometers, 42 nanometers, 45 nanometers, 48 ​​nanometers, 50 nanometers, 60 nanometers, 70 nanometers, 80 nanometers, 90 nanometers, 100 nanometers, or a range between any two of the foregoing values.

[0071] Furthermore, in some embodiments of the present application, the chemical sunscreen includes: ethylhexyl methoxycinnamate, ethylhexyl salicylate, diethylamino hydroxybenzoyl hexyl benzoate, and phenylbenzimidazole sulfonic acid.

[0072] Furthermore, in some embodiments of the present application, the emollient includes: cyclopentasiloxane, polydimethylsiloxane, vegetable oil, mineral oil, synthetic ester oil, and silicone oil.

[0073] Furthermore, in some embodiments of the present application, the skin feel regulator includes: silica.

[0074] Furthermore, in some embodiments of the present application, the thickener includes: isononyl isononanoate, disteardimethylammonium hectorite, and acrylic acid (esters) / ethylhexyl acrylate / polydimethylsiloxane methacrylate copolymer.

[0075] Further, in some embodiments of the present application, the emulsifier includes: lauryl PEG-9 polydimethylsiloxyethyl polydimethicone.

[0076] Furthermore, in some embodiments of the present application, the skin conditioning agent includes: niacinamide, 4-butylresorcinol, and soluble collagen.

[0077] Soluble collagen can have a good moisturizing and repairing effect, and can reduce the damage of UV to DNA.

[0078] Furthermore, in some embodiments of the present application, the moisturizer includes: glycerin.

[0079] Furthermore, in some embodiments of the present application, the cosmetics with whitening and sunscreen functions are of an oil-in-water structure; the water phase is the inner phase; and the oil phase is the outer phase.

[0080] In some embodiments of the present application, the cosmetics with whitening and sunscreen functions may also include preservatives, flavors, etc. For example, 0.01% to 0.5% flavors, 0.1% to 1% preservatives.

[0081] Some embodiments of the present application provide a method for preparing a cosmetic having whitening and sunscreen functions, comprising:

[0082] Add oil-soluble sunscreen, physical sunscreen, emollient, skin feel regulator, emulsifier and thickener into an emulsifying pot and heat to 75°C to 95°C to obtain an oil phase mixture;

[0083] Add a water-soluble sunscreen and a pH adjuster into a water phase pot, and heat to 75°C to 95°C to obtain a water phase mixture;

[0084] adding the aqueous phase mixture to the oil phase mixture and homogenizing to obtain a homogenous mixture;

[0085] To the homogenous mixture, add skin conditioning agent, whitening sunscreen composition.

[0086] In the above technical solution, by adopting the above method, a cosmetic with a water-in-oil structure and whitening and sunscreen functions can be obtained, wherein the water phase is the inner phase and the oil phase is the outer phase, so that both the inner and outer phases of the cosmetic contain sunscreen agents, and sunscreen voids can be avoided to the greatest extent.

[0087] Further optionally, illustratively, in some embodiments of the present application, an oil-soluble sunscreen, a physical sunscreen, an emollient, a skin feel regulator, an emulsifier, and a thickener are added to an emulsifying pot and heated to 75°C, 78°C, 80°C, 85°C, 88°C, 90°C, 91°C, 92°C, 93°C, 94°C, 95°C or a temperature in a range between any two of the foregoing values ​​to obtain an oil phase mixture;

[0088] Further optionally, illustratively, in some embodiments of the present application, water-soluble sunscreen agents and pH adjusters are added to the water phase pot, and the temperature is heated to 75°C, 76°C, 77°C, 78°C, 79°C, 80°C, 81°C, 82°C, 83°C, 84°C, 85°C, 86°C, 90°C, 91°C, 92°C, 93°C, 94°C, 95°C or a temperature in a range between any two of the foregoing values ​​to obtain an aqueous phase mixture.

[0089] The features and performance of the present application are further described in detail below in conjunction with the embodiments:

[0090] Examples and Comparative Examples

[0091] Provided is a cosmetic with whitening and sunscreen functions. The formula compositions of various embodiments and comparative examples are shown in Table 1 in terms of mass percentage.

[0092] Table 1

[0093]

[0094]

[0095]

[0096] Preparation process:

[0097] Add oil-soluble sunscreen, nano titanium dioxide, moisturizer, skin feel regulator, emulsifier and thickener into an emulsifying pot and heat to 75-95°C; add water, water-soluble sunscreen, pH regulator and whitening agent into the water phase pot and heat to 75-95°C; slowly pump the water phase into the emulsifying pot and homogenize for 3 minutes; cool to 45°C; add preservative, 0.1-10% skin conditioner and whitening agent, stir evenly and discharge.

[0098] Experimental example

[0099] 1. Test project: Chicken embryo chorioallantoic membrane test

[0100] Test method:

[0101] A certain amount of the test substance is directly brought into contact with the chorioallantoic membrane blood vessels of mid-stage fertilized chicken embryos at 10 to 14 days of incubation. After a period of action, the vascular damage is observed and the different degrees of vascular damage are scored. The more severe the vascular damage, the greater the score.

[0102] Efficacy evaluation methods and assessment

[0103] The low-irritation sunscreen lotion and the control sample were evenly coated on the chorioallantoic membrane of fertilized chicken embryos at 10 to 14 days of incubation at a coating density of 2 mg / cm2, incubated at 37.5°C and 55% humidity for 30 minutes, and the surface material was rinsed with physiological saline to observe the vascular damage and score the different degrees of vascular damage. Ten fertilized eggs were used for each sample.

[0104] The evaluation criteria are shown in Table 2; the test data are shown in Table 3.

[0105] Table 2 Evaluation criteria

[0106] score Phenomenon Observation 0 No reaction observed 1 There is no blood flow in the vessels and the blood vessels are clear. 2 Vascular congestion, slight swelling 3 There are a few blood spots (less than 10) on the body of the material 4 There are moderate blood spots (>10) on the body but no bleeding 5 There are a few blood spots (less than 10) on the body of the material and bleeding 6 There are moderate amount of blood spots (>10) in the body, but there is bleeding 7 A lot of bleeding spots on the body 8 There is heavy bleeding in the body and a scab may form. Points Performance 0---2 Stressful stimulation 2---3 Mild irritation 3---5 Moderate stimulation ＞5 Severe irritation

[0107] Table 3

[0108]

[0109] Conclusion: This application is generally less irritating than the control sample.

[0110] 2. Testing of protection effectiveness

[0111] According to the process, Example 16 and Comparative Example 16 were prepared to obtain the corresponding samples, and the sun protection factor (SPF value) of the sunscreen lotion was measured according to Chapter 8, Section 2, Sunscreen Cosmetics Sun Protection Factor (SPF Value) of the 2015 Edition of the "Safety Technical Specifications for Cosmetics". According to Chapter 8, Section 4, Protection Index for Ultraviolet A Wave (i.e., UVA) of the 2015 Edition of the "Safety Technical Specifications for Cosmetics", the sun protection factor (SPF value) of the sunscreen lotion was measured according to Chapter 8, Section 4, Sunscreen Cosmetics Sun Protection Factor (SPF Value) of the 2015 Edition of the "Safety Technical Specifications for Cosmetics".

[0112] The PFA value is detected by the detection method of the number (PFA value). The test results are as follows:

[0113] Table 4

[0114] Group SPF value (average) PFA value (average value) Example 1 54.5 11.2 Example 2 55.7 10.7 Example 3 53.8 11.3 Example 4 57 13.4 Example 5 52 12.5 Comparative Example 1 40.3 8.3 Comparative Example 2 46.3 9 Comparative Example 3 42 9.2 Comparative Example 4 43 10 Comparative Example 5 42.4 9.7

[0115] Conclusion: From the above experimental results, it can be seen that compared with Examples 1-5, the protection capabilities of Comparative Examples 1-5 are relatively weaker in both UVB and UVA.

[0116] 3. Whitening effect test

[0117] Experimental samples:

[0118] Prepared according to Example 1 and Comparative Example 1

[0119] Negative control: blank control

[0120] Positive control: 7% VC product, prepared according to the formula in Appendix 1 of the Cosmetic Safety Technical Specifications.

[0121] Subjects: A total of 60 people, including 4 males and 56 females, aged between 25 and 60 years old. The above volunteers were divided into Group A and Group B, with 30 people in each group.

[0122] Volunteer inclusion criteria: 1) Good health, no history of skin disease or systemic disease; 2) Male or female, aged 18 to 65 years old; 3) Serious attitude, able to use the product consistently; Excluded groups include pregnant or breastfeeding women, and those with sensitive skin;

[0123] Test method: The test shall be conducted in accordance with the specific requirements of the Technical Specifications for Safety of Cosmetics (2015 edition).

[0124] The test data is shown in the table below.

[0125] Table 5

[0126]

[0127] Conclusion: From the above data analysis, the whitening effect of the embodiment of the present application is better than that of the control product.

[0128] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cosmetic with whitening and sunscreen functions, characterized in that: In terms of mass percentage, the cosmetic comprises: 9%-28% chemical sunscreen, 1%-8% physical sunscreen, 15%-35% emollient, 1%-10% skin feel regulator, 0.1%-10% skin conditioner, 1%-10% moisturizer, 0.2%-2% thickener, 0.1%-5% emulsifier, 0.01%-2% pH regulator, 1%-10% whitening sunscreen composition; Wherein, the whitening sunscreen composition comprises, by mass percentage: 0.5% to 5% melanin, 0.1% to 0.5% allantoin, 0.1% to 1% ferulic acid, 0.01% to 0.05% astaxanthin, 0.1% to 0.5% orotic acid; and the balance is water.

2. The cosmetic with whitening and sunscreen functions according to claim 1, characterized in that: Calculated by mass percentage, the whitening sunscreen composition comprises: 0.5% to 2% melanin, 0.2% to 0.5% allantoin, 0.1% to 0.6% ferulic acid, 0.02% to 0.05% astaxanthin, 0.1% to 0.5% orotic acid; and the balance is water.

3. The cosmetic with whitening and sunscreen functions according to claim 1, characterized in that: Calculated by mass percentage, the whitening sunscreen composition comprises: 0.5% to 2% melanin, 0.2% to 0.5% allantoin, 0.2% to 0.6% ferulic acid, 0.02% to 0.05% astaxanthin, 0.1% to 0.3% orotic acid; and the balance is water.

4. The cosmetic with whitening and sunscreen functions according to claim 1, characterized in that: In terms of mass percentage, the chemical sunscreen comprises: 8%-20% oil-soluble sunscreen and 1%-8% water-soluble sunscreen.

5. The cosmetic with whitening and sunscreen function according to claim 4, characterized in that: The oil-soluble sunscreen includes: ethylhexyl methoxycinnamate, ethylhexyl salicylate, diethylaminohydroxybenzoyl hexyl benzoate; Optionally, the water-soluble sunscreen agent includes: phenylbenzimidazole sulfonic acid.

6. The cosmetic with whitening and sunscreen functions according to claim 1, characterized in that: The physical sunscreen includes: titanium dioxide.

7. The cosmetic with whitening and sunscreen function according to claim 6, characterized in that: The particle size of the titanium dioxide is greater than or equal to 30 nanometers and less than or equal to 100 nanometers.

8. The cosmetic with whitening and sunscreen functions according to any one of claims 1 to 7, characterized in that: The emollients include: cyclopentasiloxane, polydimethylsiloxane, vegetable oil, mineral oil, synthetic ester oil, silicone oil; Optionally, the skin feel regulator comprises: silica; Optionally, the thickener includes: isononyl isononanoate, disteardimethylammonium hectorite, acrylic acid (esters) / ethylhexyl acrylate / polydimethylsiloxane methacrylate copolymer; Optionally, the emulsifier includes: lauryl PEG-9 polydimethylsiloxyethyl dimethicone; Optionally, the skin conditioning agent includes: niacinamide, 4-butylresorcinol, soluble collagen; Optionally, the moisturizer includes: glycerin.

9. The cosmetic with whitening and sunscreen functions according to any one of claims 1 to 6, characterized in that: The cosmetics with whitening and sunscreen functions are of an oil-in-water structure; the water phase is the inner phase; and the oil phase is the outer phase.

10. The method for preparing the cosmetics with whitening and sunscreen functions according to any one of claims 1 to 6, characterized in that: include: Add oil-soluble sunscreen, physical sunscreen, emollient, skin feel regulator, emulsifier and thickener into an emulsifying pot and heat to 75°C to 95°C to obtain an oil phase mixture; Add a water-soluble sunscreen and a pH adjuster into a water phase pot, and heat to 75°C to 95°C to obtain a water phase mixture; adding the aqueous phase mixture to the oil phase mixture and homogenizing to obtain a homogenous mixture; To the homogenous mixture, add skin conditioning agents, whitening sunscreen compositions.

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