This article will discuss collagen protein and hair growth, collagen types and hair application, who should not use collagen for their hair, and alternatives to collagen for hair growth.

the protein found in hair. Recently, collagen has become a popular supplement for healthy hair, skin, and nails. However, the research on its effectiveness for hair growth is limited. Still ...

Protein is an essential ... everything you hear about collagen is true -- for example, there's little evidence of collagen supplements helping nail and hair growth. That being said, collagen ...