Studies have shown that L-Tryptophan may play a role in the initiation and suppression of hair growth; it’s often used to treat stress and depression, which can trigger health-related issues causing hair loss.
L-Tryptophan – 4 mg
![](https://www.vigrxnitricoxide.com/wp-content/uploads/2019/12/tryptophan.png)
Studies have shown that L-Tryptophan may play a role in the initiation and suppression of hair growth; it’s often used to treat stress and depression, which can trigger health-related issues causing hair loss.