Hair is made of protein. But eating keratin doesn't help it grow. Here is what actually does.

From Root to Ritual by Laritelle Organic. The most fundamental fact about hair composition is taught in every introductory biology class: hair is made almost entirely of protein — specifically keratin, a structural protein produced by follicle keratinocytes from amino acids delivered through the bloodstream. This fact is also the source of one of the most widespread and expensive misconceptions in the hair supplement industry. If hair is ... Read the full article: https://laritelleorganic.com/blogs/news/hair-is-made-of-protein-but-eating-keratin-doesnt-help-it-grow-here-is-what-actually-does