Evidence-Based Ways Collagen May Improve Your Hair

Collagen is often touted to reduce signs of aging, plump up skin, and add a youthful glow to our complexions. Since collagen is the body's most abundant protein and found in connective tissues, joints, and skin, we'd say it's a pretty big deal.

In addition to the many full-body benefits that often get brought up when discussing collagen supplements, hair health is a common claim as well. But what exactly does collagen supplementation do for your mane? After all, hair is made of the protein keratin—not collagen.

Well, here are 4 evidence-based ways that collagen may improve your hair and how collagen can make your hair thicker, longer and slow down graying.

  1. Collagen is rich in amino acids that your body needs to build keratin, the protein that makes up hair. 
  2. Hair follicles can be damaged by free radicals. Collagen may act as an antioxidant that can fight free radicals and prevent hair damage
  3. Since collagen protects the layer of skin that contains hair roots, it may help prevent age-related hair loss and thinning 
  4. Free radical damage to cells that produce hair color may accelerate graying to some extent. Since collagen can act as an antioxidant, it may be able to fight this damage and slow graying.

Evidence-Based Ways Collagen May Improve Your Hair

Summarized, Collagen is one of the building blocks that help produce keratin, the protein that makes up the hair. The more collagen the body has access to, the easier it will be for it to start hair regrowth.

When collagen deposits in the scalp decline due to age, collagen supplements can help make up for the difference and keep hair growing. Collagen also adds more volume to the hair, which keeps it healthy and shiny because of the steady production of sebum, or the oils found on the hair and scalp. This oil helps prevent dry and flaky hair, which is more prone to breaking or falling.