5-Hydroxytryptophan (5-HTP) is the intermediate metabolite the body produces when it initiates the process of converting the essential amino acid L-tryptophan to serotonin. Thorne 5-HTP is formulated with vitamin B6 for optimal activity.
Additional Warnings: 5-Hydroxytryptophan should be used with caution in an individual currently being treated with an SSRI, MAO inhibitor, or other antidepressant medication.