Now 5-HTP 200 mg Double Strength supports a positive mood. 5-HTP, the intermediate metabolite between the amino acid L-tryptophan and serotonin, is extracted from the seed of an African plant (Griffonia simplicifolia). Natural Color variation may occur. A double strength formula with 200 mg of 5-htp per capslule instead of the regular 100 mg per capsule. For adult use only. Recommended Use: Take 1 capsule daily, preferably on an empty stomach at bedtime, or as directed by a healthcare professional.