Beauty insiders, biohackers and longevity enthusiasts are going crazy for copper, more specifically, GHK-Cu, a copper peptide linked to everything from wound healing and collagen production to thicker, healthier-looking hair. From supplements and serums to creams and injectables, you may have noticed it all over your social feeds. But despite the sudden surge in popularity, it’s actually not a new ingredient. So, with that in mind, is it really the Wunderkind everyone’s claiming it to be? We spoke to the experts to find out…
