Imagine a substance that cushions your joints, plumps up your skin, and supports your organs. Collagen has that job, which helps explain why it’s the most abundant protein in the body—it’s in your skin, cartilage, bones, tendons, and ligaments. There’s even collagen in your eyes and teeth.
Adam Friedman, MD, professor and chair of the Department of Dermatology at the George Washington University School of Medicine and Health Sciences in Washington, D.C., explains the benefits of collagen and whether it can really benefit your health.