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Silicone oil-in-water cosmetic and preparation method thereof

A cosmetic and oil-in-water technology, which is applied in the field of silicone oil-in-water cosmetics and its preparation, can solve the problems of poor covering effect, low powder content, dryness and the like, and achieves excellent covering effect, long-lasting makeup, and improved affinity. Effect

Pending Publication Date: 2021-05-28
COSMAX CHINA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects of common silicone oil-in-water milk cosmetics on the market, which have less powder content, poor covering effect and easy to produce dry feeling, and provide a silicone oil-in-water cosmetic and its preparation method

Method used

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  • Silicone oil-in-water cosmetic and preparation method thereof
  • Silicone oil-in-water cosmetic and preparation method thereof
  • Silicone oil-in-water cosmetic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0056] Experimental example 1. Emulsion stability test:

[0057] To evaluate the stability of silicone oil-in-water emulsified cosmetics over time, each cosmetic product was placed in a transparent container and sealed with a cap, and then stored at 50°C for one month to observe any separation of the water and oil phases after storage . The shear viscosity of each cosmetic product was measured at 25°C using a rotational viscometer the day after formulation and after storage at 50°C for one month. From the second day after preparation to storage at 50°C for one month, the degree of oil-water phase separation and viscosity changes were observed and evaluated using four scales A to D. A: Consistent with the standard sample B: Slight changes, still applicable C: Moderate changes, unacceptable D: Significant changes, the results are listed in the tables in Table 1-4.

experiment example 2

[0058] Experimental example 2. Sensory evaluation:

[0059] In the single-use test on the skin conducted by the cosmetics evaluation expert group, the roughness, moisturizing feeling, moist feeling, thick feeling, and covering degree of the examples and comparative examples were evaluated, and the evaluation was scored (0-5 points) , the higher the score, the better the effect. The evaluation is carried out on the following scale: 1 point is very dissatisfied, 2 points are relatively dissatisfied, 3 points are average, 4 points are quite satisfactory, and 5 points are very satisfied. The results are listed in the tables in Table 1-4.

experiment example 3

[0060] Experimental example 3. Safety patch test:

[0061] Add 20 μL of the liquid to be tested dropwise to the spot tester, and the control hole is the blank control (pure water); stick the spot tester with the test substance on the flexion side of the forearm of the subject, and press lightly with the palm to make it evenly Stick it on the skin and last for 24 hours; observe the skin irritation and sensitization according to Table 5 after 30 minutes, 24 hours, and 48 hours after the spot tester is removed, and record the observation results.

[0062] table 5

[0063]

[0064] Experimental results: Human skin patch tests were carried out on Examples 3, 8, and 13. The results are shown in Table 6, and there were no adverse skin reactions among the 20 people.

[0065] Table 6

[0066]

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Abstract

The invention belongs to the technical field of cosmetics, and particularly relates to a silicone oil-in-water cosmetic and a preparation method thereof. According to the silicone oil-in-water cosmetic, through the synergistic effect of an emulsification system formed by the anionic surfactant potassium cetyl phosphate and the nonionic surfactant, high-content hydrophobization treatment powder can be contained in the inner phase, the problem that the stability of the silicone oil-in-water type emulsification cosmetic with the inner phase containing the ultraviolet absorbent is poor is solved, the preparation method is simple, and the prepared cosmetic has the advantages of stable system and property, light, thin and moist skin feeling, high sunscreen value and blue light resistance.

Description

technical field [0001] The invention belongs to the technical field of cosmetics, and in particular relates to a silicone oil-in-water cosmetic and a preparation method thereof. Background technique [0002] Pre-makeup isolation is a beauty and skin care product used after basic skin care and before make-up. It is used to isolate the skin and make-up to prevent the chemical components in the make-up from directly contacting the skin and causing skin deterioration. It is a protective screen between the skin and make-up. At present, such cosmetics generally control oil and moisturize, lock skin care products, and make the makeup more docile and durable. As the combination of make-up and skin care, cosmetics should take into account both the moisturizing of oil-in-water skin care products and the moisturizing of water-in-oil products, and at the same time have the effect of covering and even skin tone. [0003] Titanium oxide has a high refractive index. Because it physically ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/55A61K8/86A61K8/891A61K8/81A61K8/29A61K8/26A61K8/19A61K8/37A61K8/58A61K8/34A61Q17/04A61Q1/02
CPCA61K8/55A61K8/86A61K8/891A61K8/8147A61K8/29A61K8/26A61K8/19A61K8/37A61K8/585A61K8/345A61Q17/04A61Q1/02A61K2800/592
Inventor 李品一周秋娜金荣熙田星星权泰希金延埈
Owner COSMAX CHINA INC
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