Cysteamine Is the Buzzy Dark-Spot-Fighting Ingredient You’re About To See a Lot More Of
Cysteamine is a skin-lightening ingredient that’s been around for decades, but isn’t yet widely available. You’re about to see it a lot more. Experts in This Article Mikki Bey Crawford is the U.S. vice president of Swiss-based skin-care brand Cyspera. Rachel Roff is an esthetician and founder of Urban Skin Rx. Enter: cysteamine, which youre about to see a whole lot more of. When you have too much cysteine, it can cause increased melanin synthesis, which leads to hyperpigmentation....