L-Tryptophan 500 mg
Essential amino acid and serotonin/melatonin precursor for practitioner-guided sleep support.
 
Supports
Stress / Mood / Sleep
 
Overview
L-tryptophan is an essential amino acid and biochemical precursor for serotonin and melatonin. This product provides 500 mg per capsule.
 
Evidence Note
A systematic review and meta-analysis found that tryptophan supplementation may reduce wake time after sleep onset, with clearer effects at total daily intakes of at least 1 gram. Effects on other sleep measures were inconsistent. Evidence does not support presenting tryptophan as a treatment for depression, anxiety, seasonal mood disorder, or chronic insomnia.
 
What's Inside — Per Capsule
L-Tryptophan — 500 mg
 
Suggested Use
Use according to the current product label or as directed by your healthcare professional.
 
Important Safety Considerations
Do not combine with serotonergic medications—including SSRIs, SNRIs, MAO inhibitors, tricyclic antidepressants, tramadol, or other serotonin-raising drugs—without clinician review because of serotonin-toxicity risk.
Consult your healthcare professional before use if pregnant, breastfeeding, taking medication, or managing a psychiatric or neurologic condition.
May cause drowsiness; use caution with alcohol, sedatives, or activities requiring alertness.
 
Research & References
Tryptophan Supplementation and Sleep Quality: Systematic Review and Meta-analysis
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.