spf 15 30 50

An SPF of 15 screens 93 percent of UVB rays, while a 30 screens 97 -- just four percent more. promo slot deposit 50 bonus 30 "UVB protection does not increase proportionally with the SPF number," says Dr Elizabeth Hale of the Skin Cancer Foundation There's a large jump between an SPF of 2, which protects against 50 percent of UVB rays, and 15, but after that the increments