Sunscreen should not only be the patent of beautiful women, because sunscreen is not only to prevent sunburn, but also to prevent sunburn, photoaging, wrinkles and even skin cancer. Who is your killer? Ultraviolet rays in sunlight, Shining on the surface of the earth, including long-wave UVA and medium-wave UVB. UVB can reach the dermis, Sunburn the skin, Causing skin peeling, erythema, Serious even blisters, But it can be blocked by glass, sunshades, clothes, etc. More than 95% of the ultraviolet rays reaching the earth’s surface are UVA, It will pass through the glass window refracted into the room, can penetrate into the dermis layer, will destroy collagen, elastic fibers, is the most important reason for skin aging ahead of Read More …