The amino acids 5-hydroxytryptophan (5-HTP) and l-tryptophan are precursors of serotonin. 5-HTP is generally recommended over l-tryptophan because it crosses the blood-brain barrier at a higher rate, ...

Supplementation of naturally occurring amino acid, 5-Hydroxytryptophan, helped to improve sleep quality and the composition of good gut bacteria particularly in poor sleepers, indicating possible link ...

Which 5-HTP supplement is best? Depression and anxiety are two common conditions associated with low serotonin levels. Medication is often prescribed for these conditions. In many cases, it’s ...

Announcing a new article publication from Acta Pharmaceutica Sinica B. Morinda officinalis oligosaccharides(MOO) is an oral drug approved in China for the treatment of depression in China. The authors ...

IT has been found that 5-HT (5-hydroxytryptamine) is formed by the action of ultra-violet irradiation on 5-HTP (5-hydroxytryptophan) aqueous solution, as a result of a decarboxylation process 1. It is ...

WE have recently described the effect of 5-hydroxy-tryptamine on acid gastric secretion elicited by histamine in dogs 1. Recent experiments with its precursor 5-hydroxytryptophan have shown that this ...