- ADVERTISEMENT -Is it true we’re supposed to wear sunscreen indoors even if we’re not going to be out in the sun? So, yes, I do wear sunscreen every day despite working indoors. As someone with a darker skin tone myself, I’m only too familiar with the whitish-gray cast that many mineral sunscreens leave on my skin. Overall, my recommendation is to wear sunscreen every day, even if you’re going to be indoors. “The amount of exposure that you’re getting outdoors is still orders of magnitude higher than what you’re getting indoors,” Lester said.