While this sounded like a great makeup tip, our initial thought was that there was no way this could be healthy for your skin. Turns out we were way off: Not only is Pepto safe to put on your face, it might actually be beneficial for your skin. "There is no permanent stain or consequence from using Pepto-Bismol as a cheap cheek color," says dermatologist Dr. Zena Gabriel. However, she says, you should not use Pepto on your face if you use any skin care products or supplements that contain sulfur — it will react with the active ingredients in Pepto-Bismol and may stain your skin black. Yikes!