Before diving into how collagen benefits nails, it’s important to note that collagen is a natural protein found primarily in the skin, keeping it smooth, supple, and strong. As we age, our collagen levels run low, which is why skincare brands often add collagen to serums and moisturizers, most of which claim to plump the skin and reduce fine lines. But whether topical collagen products can boost deeper collagen reserves is still up for debate. What topical collagen products can do, however, is hydrate and moisturize the surface of the skin.
