Cosmetics with whitening and sunscreen functions and preparation method thereof

Abstract

The present application relates to the field of cosmetics, and relates to a cosmetic with whitening and sunscreen functions and a preparation method thereof. Calculated by mass percentage, the whitening and sunscreen composition comprises: 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; the remainder is water. Chemical sunscreens and physical sunscreens are compounded so that both the internal and external phases of the cosmetic contain sunscreens, which can avoid sunscreen voids to the greatest extent. By compounding melanin, allantoin, ferulic acid, astaxanthin, and orotic acid in a specific ratio and compounding them in the above-mentioned cosmetic formula, the ability of the cosmetic to absorb ultraviolet rays, accelerate wound healing, effectively scavenge free radicals, inhibit inflammatory factors, promote skin renewal, and combine pathways to further improve the product's sunscreen effect.

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] Currently, 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 sunscreens primarily reduce UV damage by reflecting and scattering sunlight. Common physical sunscreens include zinc oxide and titanium dioxide. These form a protective layer on the skin's surface, reflecting UV rays away and preventing them from penetrating deeper into the skin.

[0004] Chemical sunscreens primarily reduce the damaging effects of UV rays by absorbing and converting them. Chemical sunscreens are commonly used. They absorb UV rays on the skin's surface and convert them into heat, releasing them as heat, thus preventing direct damage to the skin.

[0005] Physical sunscreens don't penetrate deep into the skin, so they don't cause irritation or allergic reactions. They form a protective film on the skin's surface, providing continuous protection against UV damage. However, they also leave a thick, white film on the skin's surface, which can make it feel stuffy. Chemical sunscreens absorb UV rays and convert them into heat, releasing them as heat, so they don't cause irritation or discomfort. However, some chemical sunscreens may penetrate deep into the skin, causing irritation or allergic reactions. Chemical sunscreens also have relatively poor long-lasting properties, requiring frequent reapplication to maintain their effectiveness.

[0006] At present, the 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 with whitening and sunscreen functions, wherein the cosmetic comprises, in percentage by mass:

[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] The whitening and 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.

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

[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 balance 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 balance is water.

[0014] In other embodiments of the present application, the chemical sunscreen comprises, by mass percentage, 8%-20% oil-soluble sunscreen and 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 agent 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, disteardimonium hectorite, acrylates / 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 have a water-in-oil 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 a cosmetic having 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 water-soluble sunscreen and pH adjuster into the water phase pot and heat to 75°C to 95°C to obtain an aqueous phase mixture;

[0030] adding the aqueous phase mixture to the oil phase mixture and homogenizing to obtain a homogeneous 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 making creative efforts are within the scope of protection of this application.

[0034] The present application provides a cosmetic with whitening and sunscreen functions, which 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] The whitening and 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.

[0037] In the above technical solution, a chemical sunscreen and a physical sunscreen are compounded, so that both the internal and external phases of the cosmetic contain sunscreen, which can minimize sunscreen voids. Furthermore, the cosmetics of this application, by compounding melanin, allantoin, ferulic acid, astaxanthin, and orotic acid in specific proportions and adding them to the above cosmetic formula, can further enhance the cosmetics' ability to absorb ultraviolet light, accelerate wound healing, effectively scavenge free radicals, inhibit inflammatory factors, promote skin renewal, and further improve the product's sunscreen efficiency, minimizing sunscreen voids. Simultaneously, the cosmetics have a whitening effect, making the effects of the cosmetics diverse.

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

[0039] Furthermore, 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 values ​​of emollients;

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

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

[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 values ​​of emulsifier;

[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 solution, by compounding the ingredients of melanin, allantoin, ferulic acid, astaxanthin, and orotic acid, and controlling the content of each ingredient within the above range, a synergistic effect can be achieved, and multi-angle and multi-pathway sun protection and whitening effects can be achieved from multiple angles and combined pathways.

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

[0053] Illustratively, in some embodiments of the present application, the whitening sunscreen composition comprises: 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 values ​​of 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 balance 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 balance is water.

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

[0061] In the above technical solution, the combination of oil-soluble and water-soluble sunscreens enables cosmetics with whitening and sunscreen functions to form a water-in-oil structure, with the water phase serving as the inner phase and the oil phase serving as the outer phase. This allows both the inner and outer phases of the cosmetic to contain sunscreen, minimizing the risk of sunscreen voids.

[0062] Illustratively, in some embodiments of the present application, the chemical sunscreen comprises, 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 diethylamino hydroxybenzoyl 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 while producing a whitening effect.

[0070] Illustratively, in some embodiments of the present application, the particle size of titanium dioxide is 30 nm, 32 nm, 35 nm, 38 nm, 40 nm, 42 nm, 45 nm, 48 nm, 50 nm, 60 nm, 70 nm, 80 nm, 90 nm, 100 nm, 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, disteardimonium hectorite, and acrylic acid (esters) / ethylhexyl acrylate / polydimethylsiloxane methacrylate copolymer.

[0075] Furthermore, 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 conditioner includes: niacinamide, 4-butylresorcinol, and soluble collagen.

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

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

[0079] Furthermore, in some embodiments of the present application, the cosmetics with whitening and sunscreen functions have a water-in-oil 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 further include preservatives, fragrances, etc. For example, 0.01% to 0.5% fragrance, 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 water-soluble sunscreen and pH adjuster into the water phase pot and heat to 75°C to 95°C to obtain an aqueous phase mixture;

[0084] adding the aqueous phase mixture to the oil phase mixture and homogenizing to obtain a homogeneous 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 water-in-oil structured cosmetic with whitening and sunscreen functions can be obtained, wherein the water phase is the inner phase and the oil phase is the outer phase. This ensures that both the inner and outer phases of the cosmetic contain sunscreen, thus minimizing the risk of sunscreen voids.

[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 a temperature of 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 within 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, a water-soluble sunscreen agent and a pH adjuster are added to an aqueous phase pot and 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 invention are further described in detail below with reference to 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, expressed in percentage by mass, are shown in Table 1.

[0092] Table 1

[0093]

[0094]

[0095]

[0096] Preparation process:

[0097] Add oil-soluble sunscreen, nano titanium dioxide, emollient, skin feel regulator, emulsifier, and thickener to an emulsifying pot and heat to 75-95°C. Add water, water-soluble sunscreen, pH regulator, and whitening agent to the aqueous phase pot and heat to 75-95°C. Slowly pump the aqueous 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 item: Chicken embryo chorioallantoic membrane test

[0100] Test method:

[0101] A certain amount of the test substance is directly exposed to the chorioallantoic membrane blood vessels of the mid-stage fertilized chicken embryo at the embryonic age of 10 to 14 days. After a period of exposure, 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 assessment methods and evaluation

[0103] Low-irritation sunscreen lotion and a control sample were evenly applied at a coating density of 2 mg / cm² to the chorioallantoic membrane of 10- to 14-day-old fertilized chicken embryos. The eggs were incubated at 37.5°C and 55% humidity for 30 minutes. The surface was rinsed with saline, and vascular damage was observed and scored. Ten fertilized chicken 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 and 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 blood spots (>10) on the body, but there is bleeding 7 A large number of bleeding spots on the body 8 There is heavy bleeding in the body area and scabs may form. Score 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 protective effectiveness

[0111] The corresponding samples were prepared according to the process of Example 16 and Comparative Example 16, and the sun protection index (SPF value) of the sunscreen lotion was measured according to Chapter 8, Section 2 of the 2015 edition of the "Safety Technical Specifications for Cosmetics: Sun Protection Index (SPF Value) of Sunscreen Cosmetics".

[0112] The PFA value was tested using the PFA value detection method. The test results are shown in the following table:

[0113] Table 4

[0114] Group SPF value (average) PFA value (average) 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 diseases or systemic diseases; 2) Male or female, aged 18 to 65 years old; 3) Serious attitude and ability 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: Based on the above data analysis, the whitening effect of the embodiment of the present application is better than that of the control.

[0128] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A cosmetic with whitening and sun protection functions, characterized in that: Measured in percentage by mass, 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 and 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; the balance is water; The physical sunscreen comprises titanium dioxide; the particle size of the titanium dioxide is greater than or equal to 30 nanometers and less than or equal to 100 nanometers.

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

5. The cosmetic with whitening and sunscreen functions according to claim 4, characterized in that: The oil-soluble sunscreen includes: ethylhexyl methoxycinnamate, ethylhexyl salicylate, and diethylamino hydroxybenzoyl hexyl benzoate.

6. The cosmetic with whitening and sunscreen functions according to claim 4, characterized in that: The water-soluble sunscreen agent includes phenylbenzimidazole sulfonic acid.

7. The cosmetic with whitening and sunscreen functions according to any one of claims 1 to 6, characterized in that: The emollients include: cyclopentasiloxane, polydimethylsiloxane, vegetable oil, mineral oil, synthetic ester oil, and silicone oil.

8. The cosmetic with whitening and sunscreen functions according to any one of claims 1 to 6, characterized in that: The skin feel regulator includes silica.

9. The cosmetic with whitening and sunscreen functions according to any one of claims 1 to 6, characterized in that: The thickener includes: isononyl isononanoate, disteardimethylammonium hectorite, and acrylic acid (esters) / ethylhexyl acrylate / polydimethylsiloxane methacrylate copolymer.

10. The cosmetic with whitening and sunscreen functions according to any one of claims 1 to 6, characterized in that: The emulsifier includes: Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone.

11. The cosmetic with whitening and sunscreen functions according to any one of claims 1 to 6, characterized in that: The skin conditioning agent includes: niacinamide, 4-butylresorcinol, and soluble collagen.

12. The cosmetic with whitening and sunscreen functions according to any one of claims 1 to 6, characterized in that: The moisturizing agent includes glycerin.

13. 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 a water-in-oil structure; the water phase is the inner phase; and the oil phase is the outer phase.

14. The method for preparing a cosmetic with whitening and sunscreen functions according to any one of claims 1 to 13, 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-95°C to obtain an oil phase mixture; Add water-soluble sunscreen and pH adjuster into the water phase pot and heat to 75°C~95°C to obtain an aqueous phase mixture; adding the aqueous phase mixture to the oil phase mixture and homogenizing to obtain a homogeneous mixture; To the homogenous mixture is added a skin conditioning agent, a whitening sunscreen composition.

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