"Wear sunscreen" is some of the most basic health advice you can get — right up there with eating fruits and vegetables. But standard sunscreen — the kind that comes out of the bottle white or cream colored and disappears into the skin — leaves out an important benefit, says Dr. Jenna Lester, associate professor of dermatology at the University of California, San Francisco.
Over the last decade or so, there's been more research into hyperpigmentation — which can show up as dark spots or patches — and melasma, a condition where brown or bluish-gray patches develop on the skin. These issues happen much more frequently for people with darker skin.
These conditions are not solely caused by ultraviolet radiation, says Dr. Adam Friedman, Professor and Chair of Dermatology at George Washington