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Ortho Molecular Products


5-HTP (5-hydroxytryptophan) is an amino acid derived from the seeds of Griffonia simplicifolia. It plays an important role in the production of serotonin. 5-HTP is the precursor to serotonin from tryptophan.

Serotonin is a neurotransmitter (a chemical that sends a message from one nerve to another) known to play a major role in mood. Serotonin taken orally does not cross the blood-brain barrier; however, 5-HTP effectively crosses the blood-brain barrier and increases the central nervous system synthesis of serotonin.
90 Capsules

$44.80 Online Price


Low levels of serotonin have been associated with mood disorders. Studies have shown that depriving the brain of tryptophan, thereby decreasing serotonin synthesis, can induce mood disorders within hours. Similarly, those with mood disorders have been found to have significantly lower tryptophan levels than their controls. 5-HTP has been used for many years to support those with mood disorders. It has also been used to support other health concerns such as headaches and sleeping difficulties.



As a dietary supplement, 1 or more capsules per day or as recommended by your health care professional.

5-HTP should not be used with MAOI's, SSRI's, or other anti-depressant drugs. Do not take 5-HTP if you are nursing or pregnant.

All prices are subject to change without notice.

This Web site is not to be used as a substitute for medical advice, diagnosis or treatment of any health condition or problem. Users of this Web site should not rely on information provided on this Web site for their own health problems. Any questions regarding your own health should be addressed to your own physician or other healthcare provider.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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