Promises of glowing skin and stronger joints sound great. The science behind collagen supplements is more complicated.

Collagen isn’t just a skincare buzzword—it’s the structural protein that quite literally holds you together. It makes up a ...

Want plumper skin and shinier hair? Discover our dermatologist-vetted editor's picks for the 10 best collagen masks. We tested over a dozen to find the masks that will make your skin glow.

If you apply the collagen mask and feel immediate tingling, burning, or see redness in your skin, she recommends taking it ...