Collagen is the most abundant protein in the body, found in our skin, muscles, bones, and tissues. It’s incredibly important for our hair and skin, but as we age, we start to lose our internal stores of it. (FYI: By age 50, you will have lost up to 20% of the collagen in your scalp and skin.1)
Collagen breakdown in the scalp prevents key components like blood vessels and nerve endings from protecting, hydrating, and replenishing the nutrients needed for hair growth—and as a result, hair often becomes shorter and weaker.