5-HTP, the intermediate metabolite between the amino acid L-tryptophan & serotonin, is extracted from the bean of an African plant (Griffonia simplicifolia). Do Not Eat Freshness Packet. Keep in Bottle. As a dietary supplement, take 1 capsule daily, preferably on an empty stomach at bedtime. Consider taking this product in combination with NOW® Valerian Root, Relora® & Pantothenic Acid. Rice Flour and Gelatin (capsule).