With world temperatures reaching record highs this summer, you may want to reconsider which sunscreen you are using, experts say. Sunscreens are not all the same. The two major types — mineral and chemical — handle the sun's ultraviolet (UV) rays differently, and during extremely hot weather, those differences can matter.
How do sunscreens work?
Mineral sunscreens contain zinc oxide or titanium dioxide. They create a barrier that reflects UV light before it penetrates the skin. Because mineral sunscreens aren't absorbed, older formulations often had a greasy feel and a white appearance.