5‑Hydroxytryptophan (5‑HTP) is derived from the seed of Griffonia simplicifolia and is a precursor needed for the synthesis of serotonin as well as for melatonin. Serotonin is synthesized in the intestinal tract by the enteric cells as well as in the central nervous system. Orally administered serotonin is not able to cross the blood-brain barrier, and therefore cannot enter the CNS. 5‑HTP, however, is able to cross the blood-brain barrier, where it can then be utilized as a precursor to generate serotonin. Serotonin plays a role in supporting healthy mood, sleep, satiety, and sexual health.*

Cautions and Warnings: Some patients experience nausea or gastrointestinal upset and drowsiness when taking 5-HTP. If this occurs, please discuss dosing with your health-care practitioner. Please consult your health-care practitioner before using this product if you are taking medications or supplements that have serotonergic activity; these include many antidepressants, St. John’s wort, l-tryptophan, cold medications containing the ingredient dextromethorphan and some antimigraine medications. Consult your health-care practitioner before using if you are pregnant or breast-feeding. This product is non-GMO. Do not use if seal is broken. Keep out of reach of children.