Silica, has significant advantages as a sunscreen in sunscreen products. The following is a detailed explanation of its advantages:

1. Excellent UV shielding ability
Strong reflectivity: silica has a high optical refractive index and reflectivity, and can effectively reflect ultraviolet rays, including ultraviolet medium wave (UVB) and ultraviolet long wave (UVA), providing comprehensive protection for the skin.
Good stability: After being exposed to ultraviolet rays, silica will not decompose, change color, or react chemically with other components in the formula, thereby ensuring the long-lasting stability of the sunscreen effect.

2. Good safety and compatibility
Non-toxic and odorless: silica is an inorganic ingredient, non-toxic, odorless, and will not cause irritation or allergies to the skin.
Easy to compatibility: White carbon is easy to compatibility with other components in cosmetics, and will not destroy the overall stability and performance of the product.

3. Unique physical properties
Small average particle size: When silica is used as a sunscreen, its particle size is generally at the nanometer or submicron level, which determines that it has good smoothness and can be evenly distributed on the skin surface to form a delicate sunscreen film.
Narrow particle size distribution: This gives silica good fluidity and touch, making sunscreen products easier to apply and push.
Large specific surface area: This gives it a good ability to absorb sweat, fragrances, nutrients and protective chemicals, which helps to improve the comprehensive performance of sunscreen products.

4. Broad application prospects
Cosmetic field: As a sunscreen, silica is widely used in various sunscreen products, such as sunscreen cream, sunscreen lotion, sunscreen spray, etc., to provide consumers with efficient and safe sun protection.
Other fields: In addition to the cosmetic field, silica is also widely used in plastics, inks, coatings and other fields, and its UV protection can extend the service life and stability of the product.

In summary, silica has many advantages as a sunscreen, including excellent UV shielding ability, good safety and compatibility, unique physical properties and broad application prospects. These advantages make silica one of the indispensable ingredients in sunscreen products.