5-Hydroxytryptophan (5-HTP) is an amino acid that is the intermediate step between tryptophan and the important brain chemical serotonin. Low serotonin levels are associated with depression and poor sleep quality.
5-Hydroxytryptophan (5-HTP) is an amino acid that is the intermediate step between tryptophan and the important brain chemical serotonin. Low serotonin levels are associated with depression and poor sleep quality.