The main reasons why phenyl silicone is used as a stabilizer in cosmetics are as follows:

Oxidation resistance: Phenyl silicone has good anti-oxidation properties, which can protect other ingredients in cosmetics from oxidation reactions. Oxidation reaction is one of the main reasons for the deterioration of cosmetics, and the antioxidant properties of phenyl silicones help to extend the stability and shelf life of cosmetics.

Photolysis resistance: Certain cosmetic ingredients are susceptible to photolysis reactions when exposed to ultraviolet rays, resulting in reduced activity of ingredients or unstable compounds. Phenyl silicone can be used as a light stabilizer to absorb or scatter ultraviolet rays and reduce the influence of ultraviolet rays on cosmetic ingredients, thereby maintaining product stability.

Adjust pH value: Phenyl silicone can adjust the pH value of cosmetics to a certain extent, keeping it within an appropriate range. Maintaining an appropriate pH level ensures that the ingredients in your cosmetics remain stable and provide an optimal application experience.

Surfactant properties: Phenyl silicone has certain surfactant properties, which can improve the compatibility and stability of various ingredients in cosmetics. It can form a stable emulsified system between different ingredients, reduce the interaction between ingredients, and improve the stability of the product.

Antibacterial properties: Phenyl silicone has certain antibacterial properties, which can inhibit the growth of microorganisms in cosmetics, prolong the shelf life of products, and prevent deterioration caused by microbial contamination.

In summary, as a stabilizer in cosmetics, phenyl silicone has the characteristics of anti-oxidation, anti-photolysis, pH adjustment ability, surfactant properties and antibacterial properties. These properties enable it to protect other ingredients from factors such as oxidation, photolysis and microbial contamination, thereby improving the stability of cosmetics, extending the shelf life of products, and ensuring the quality and effectiveness of products during use.