The Best What Does A Keratin Treatment Do For Your Hair 2023. That said, they may be expensive and contain unsafe. Keratin itself is a fibrous protein that the body produces naturally and acts as a protective shield against humidity (what causes frizz).
Web benefits of a keratin treatment. Best shampoo/conditioner for hair loss: The layers of cells, called the hair cuticle, theoretically absorb the keratin, resulting in hair that.
