5-Hydroxytryptophan (5-HTP) is an intermediate in the natural synthesis of serotonin. Serotonin is an important neurotransmitter involved in the regulation of endocrine and brain activity responsible for emotion, appetite, and sleep/wake cycles. The 5 HTP supplied in this supplement is derived from the Griffonia simplicifolia plant. Suggested Use:Adults: 1 capsule, 1 to 2 times daily or as directed by a healthcare professional.Children: As directed by a healthcare professional.Serving Size: 1 CapsuleAmount Per CapsuleL-5-Hydroxytryptophan ... 100 mg(5-HTP) (Griffonia simplicifolia) (seed extract)Other Ingredients: Microcrystalline cellulose, vegetarian capsule (hydroxypropyl methylcellulose, water), L-leucine, and silicon dioxide. Made without common allergens | Non-GMO | VeganNo synthetic colors, flavors, or preservatives Caution: This product may cause drowsiness, exercise caution if operating a motor vehicle or heavy equipment. If under 18 years of age, pregnant/nursing, have a medical condition or taking any prescription medication - including those related to mood modulation - consult your physician before use. KEEP OUT OF REACH OF CHILDREN. Made without common allergens | Non-GMO | VeganNo synthetic colors, flavors, or preservatives