Cysteine is a powerful natural antioxidant. It’s also the main component of hair keratin. Studies have shown supplementing with cysteine may increase hair growth. One such study reported “remarkable results with their anagen rate”.
The amino acid arginine may be a powerful tool in the fight against hair loss. Arginine is used by the body to create nitric oxide, which in turn dilates the blood vessels, improving blood circulation. This is a key part of hair loss prevention — in fact, one of the world’s best-selling hair loss treatments — Rogaine (Minoxidil) — is based on the very same premise.