Collagen is an important component of the health and function of the scalp and hair follicles. While there is limited scientific evidence suggesting collagen can encourage hair growth, collagen has become a popular hair growth supplement thanks to media attention and personal reports from consumers. Collagen contains amino acids used to build keratin, which is the protein that hair is primarily made of. Some studies have shown that taking collagen improves hair growth, but most of these studies were cosmetic and supplement industry funded. According to the Harvard T.H. Chan School of Public Health, this presents a conflict of interest because the industries funding the studies may benefit from positive results. However, collagen supplements may benefit the health of the hair, skin, nails, and joints. Here are some potential benefits of collagen supplements for hair growth:
- Provides amino acids that can be used to build hair
- Helps fight damage to hair follicles
- May prevent hair thinning associated with aging
- Promotes hair regeneration by making sure the body produces enough amino acids and hair-building proteins for thicker and healthier hair growth
It is important to note that the research on collagen supplementation is far from conclusive. While some small studies suggest that collagen supplements may have limited benefits, more research is necessary to prove they are just as effective. Additionally, some people experience gastrointestinal side effects when they take collagen supplements. Therefore, it is best to speak with a doctor before beginning a new supplement to check that it is safe, and to use the supplement according to the doctor’s or product label’s instructions.
