Experts agree that sunscreen — whether it's a spray, lotion, gel or wax — is an essential part of daily skin care. As a first line of defense against sunburn, sunscreen protects skin cells from DNA damage that can drive premature aging of the skin and the development of skin cancer, according to the Skin Cancer Foundation (SCF).
But how does sunscreen work? Here, we take a deep look at how specific sunscreen ingredients contribute to sun protection.
