NEUROTRANSMITTER SUPPORT – 5 HTP Supplement is a Natural source of amino acids that is needed for the production of Serotonin*RELAXATION – 5-HTP capsules supports relaxation & restful sleepPOSITIVE MOOD – Best Naturals 5 HTP 100 mg helps Keeping a stable and healthy level of serotonin helps reduce negative feelings and improving your overall mood. *No Artificial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast, No Fish, No Sodium.TOP QUALITY GMP CERTIFIED PRODUCTS – All Best Naturals products are manufactured in accordance with Good Manufacturing Practices (GMP), among the highest standards in the world — Proudly Made in USA — Purity & Potency Guaranteed Submit More 5-HTP (5-Hydroxytryptophan) is a naturally-occurring amino acid extracted from the seeds of Griffonia simplicifolia plant. It is a chemical precursor as well as metabolic intermediate in the biosynthesis of the neurotransmitters serotonin and melatonin from tryptophan. The mood enhancing action of 5-HTP is thought to be derived from its effect on the production of serotonin in the central nervous system tissue.