In sunscreen, the most commonly used silicone products mainly include volatile silicone oil, silicone film former, silicone emulsifier and silica powder. The following are the specific applications and functions of these substances in sunscreen:
Volatile silicone oil:
Sunscreens with strong sunscreen ability are usually in solid state. In order to design a refreshing sunscreen formula, it is necessary to match liquid oil sunscreens with moderate solubility and add highly volatile silicone oil.
Volatile silicone oil can provide a refreshing skin feel, especially in W/O (water-in-oil) formula system, it helps the continuous spreading of sunscreen ingredients and provides a more comfortable use experience.
Silicone film former:
Silicone film former plays a role in enhancing the waterproof and sunscreen effects in sunscreen.
It can form a thin film to firmly attach the sunscreen ingredients to the skin surface to prevent moisture and ultraviolet rays from damaging the skin.
Silicone emulsifier:
Silicon emulsifier is commonly used in W/O emulsification system. It can stabilize the oil phase and water phase in the formula to ensure the uniformity and stability of sunscreen.
Emulsifiers with different molecular weights will bring different skin feel. Formulators can balance skin feel and stability by choosing the right emulsifier.
Silicon powder:
Silicon powder as a powder raw material can improve the smoothness and skin-fitting of sunscreen.
It can fill the tiny bumps on the surface of the skin, making the sunscreen fit the skin better and provide a smooth touch.
Among the above silicone products, volatile silicone oil and silicone film-forming agent are particularly widely used in sunscreen. They can not only provide a refreshing skin feel and good waterproof sunscreen effect, but also ensure the stability and uniformity of sunscreen. At the same time, silicon powder and silicone emulsifiers also improve the use experience and performance of sunscreen to a certain extent.
It should be noted that different brands and models of sunscreen may use different silicone product combinations and formula designs, so the specific usage may vary. When choosing a sunscreen, it is recommended to choose a suitable product based on your skin type, needs and sun protection effect.