An amino acid considered essential for healthy hair growth. It boosts nitric oxide levels in the scalp, increasing blood flow and nutrients available to roots.
Arginine
![](https://www.vigrxnitricoxide.com/wp-content/uploads/2019/12/arginine2.png)
An amino acid considered essential for healthy hair growth. It boosts nitric oxide levels in the scalp, increasing blood flow and nutrients available to roots.