Physical sunscreens are available in gels, creams, lotions, wipes, sprays and powders. Some of the sunscreens contain a dye that gives the skin a brown glow. Physical sunscreens shield the skin from harmful UVB and UVA rays.
Physical sunscreens are different from chemical sunscreens because they reflect the sun's rays, while chemical sunscreens absorb the UVA and UVB rays.
Skin care specialists recommend using a sunblock or physical sunscreen with a sun protection factor of no less than 30. Individuals with acne-prone skin should use sunscreens that are non-comedogenic and fragrance-free. Gel-based sunblocks are often oil-free and are recommended for oily skin. The American Academy of Dermatology recommends physical sunscreens for people who are allergic to chemical sunscreens.