The Scientific Truth About Collagen for Hair and Supplements
Glossy, shiny hair — that’s pretty much the dream, right? There are some claims made about collagen for hair, a protein that the body uses to build skin, tendons and ligaments. But, how true are those claims? And if collagen really is the answer to great hair, which products should we be using? Keep reading to find out.
by Sally Underwood
January 02, 2026