Q. How does the sunscreen protect us from the harmful UV rays?
How does the sunscreen protect us from the harmful UV rays?
What can work as a natural sunscreen?
1.75 q
1 Answer
Sunscreens are products combining several ingredients that help prevent the sun’s ultraviolet (UV) radiation from reaching the skin.
Two types of ultraviolet radiation, UVA and UVB, damage the skin, age it prematurely, and increase your risk of skin cancer.
Sunscreen products contain SPF, SPF 15 filters out approximately 93 percent of all incoming UVB rays.
SPF 30 keeps out 97 percent and SPF 50 keeps out 98 percent.
They may seem like negligible differences, but if you are light-sensitive, or have a history of skin cancer, those extra percentages will make a difference.
However, no sunscreen can block all UV rays.answered by linda