5-HTP (L-5-Hydroxytryptophan) is an intermediate in the natural conversion of the essential amino acid tryptophan to serotonin, a brain chemical associated with positive mood and well-being. Preclinical studies show that 5-HTP may help support healthy levels of serotonin in the body. In addition to a balanced mood, serotonin may also support melatonin production and a healthy sleep cycle. Serene Science 5-HTP is derived from the seeds of the African plant Griffonia simplicifolia.*'Dietary ConsiderationsWheat FreeDairy/ Milk FreeGluten FreeSoy FreeYeast FreeSugar FreeStarch FreePreservative FreeSalt FreeCorn FreeFree of Artificial Colors/FlavorsEgg Free'Serving Size:1 Capsule'Servings Per Container:60'Amount Per Serving5-HTP (from Griffonia simplicifolia)100 mg'Other Ingredients:microcrystalline cellulose, gelatin (capsule), silica, magnesium stearate'Suggested Use: 1 capsule once or twice daily with a glass of water. Start with 1 capsule per day, increasing dosage up to 2 capsules daily as needed. Do not exceed the recommended dose.'Warning: In some people, nausea, headaches, nasal congestion, or constipation may occur. If these symptoms occur, lower the dose, or spread the dose throughout the day. Discontinue use if any of these symptoms persist for more than three days. If you are pregnant, may become pregnant, or breastfeeding, taking prescription medication such as antidepressant SSRI's, MAO inhibitors or sedatives, or if you have heart disease, consult your physician before using this product.Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.