Keep reading for everything you need to know about the trending hack, including input from board-certified dermatologists Dustin Portela, DO, and Dendy Engelman, MD. Dustin Portela, DO, is a board-certified dermatologist, skincare content creator, and founder of Treasure Valley Dermatology in Boise, Idaho. Dendy Engelman, MD, is a board-certified dermatologist and Mohs surgeon at the Shafer Clinic in New York City.