Supports a Positive Mood* With Glycine, Taurine & Inositol 5-HTP, the intermediate metabolite between the amino acid tryptophan and serotonin, is extracted from the seed of an African plant (Griffonia simplicifolia). NOW Double Strength 5-HTP has twice the 5-HTP (200 mg per capsule) as in our regular strength product (100 mg per capsule). Natural color variation may occur in this product. For adults only. Consult physician if pregnant/nursing, taking antidepressants or other medication, or have a medical condition. May cause drowsiness. Keep out of reach of children. 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. Results may vary. Consult your healthcare provider before starting any supplement regimen.