5-hydroxytryptophan (5-HTP)

It is an amino acid substance. It can be used as a precursor of serotonin (serotonin, 5-HT) in human body (and then as a precursor of melatonin). 

Some double-blind studies have shown that 5-HTP can increase the concentration of serotonin in the brain, improve depression, promote the formation of melatonin, improve sleep quality and inhibit appetite, but these studies still have problems. 

Therefore, more studies are still needed to confirm whether 5-HTP has these physiological effects. 1 Ghana seed is rich in 5-hydroxytryptophan, which is the main natural source of 5-HTP.

5-HTP is classified as a pharmaceutical ingredient in some countries. 

5-HTP is sold as a dietary supplement (health product) in the United States, the United Kingdom and Canada.