It heats up your grill, and now it’s heating up the makeup counters. Activated charcoal is the latest ingredient to take the beauty industry by storm — giving other hipster favorites like clay and coconut oil a run for their money. And now the black residue is being used in everything from teeth-whitening solutions to a lemonade cleanse, and even as the key ingredient in an expensive new facial. “Charcoal is known to absorb 100 to 200 times its weight in impurities, making it an excellent natural ingredient to help purify and deep-clean skin,” says Wendy Brooks, director of global product development at Origins, a beauty company.