Zwerling says pigments, like iron oxide, rarely cause allergic reactions. "Iron oxide has been shown to be the safest pigment," he says. "Anything that is vegetable based, organic, or natural is ...

It is a type of sunscreen that contains added pigments, usually in skin-tone shades. "It offers protection against harmful UV rays while providing light coverage to even out skin tone," says ...

and red iron oxide to make a red, plastic-like coating. The coating protected the wood and kept barns warmer in the winter. Soon, manufacturers began preparing paint with chemical pigments.

“Tinted sunscreens contain a combination of mineral [UV filters], such as titanium dioxide and zinc oxide, and pigments, like iron oxide, to match skin tone,” says Sara Hogan, MD, a board ...