Sunscreens can be divided into physical sunscreens and chemical sunscreens. However, chemical sunscreens are better for skin feel and visual effects, while those with sensitive skin or extremely dry skin are more suitable for physical sun protection.
The use of sunscreen particles to form a protective layer on the surface of the skin, reflecting the light waves that may damage the skin in the ultraviolet rays, to protect the skin. Physical sunscreen particles generally stay on the surface of the skin and are not absorbed by the skin, so the burden on the skin is relatively small, and it is not easy to cause skin sensitivity.
Through the combination of certain chemicals and cells, the part of the ultraviolet rays that may be harmful to the skin is absorbed before the cells are damaged, so as to achieve the purpose of sun protection.