This 5HTP supplement 200 mg from Natrol supports a balanced mood and promotes serotonin production throughout the day.(1) Sourced from quality ingredients, the vegetarian tablet does not contain milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans or sesame. 5-Hydroxytryptophan, an amino acid, acts as a serotonin precursor, and each serving provides 200 mg.(1) Intended for oral use at home or on-the-go with water. The product offers a 100% drug-free approach to maintain a balanced mood.(1) Controlled release technology helps you throughout the day.(1) Adults take one tablet by mouth once daily with a meal. Ideal for any wellness enthusiast. #1 5-HTP brand in America and one of the nation's leading manufacturers of vitamins and supplements. (1) Nielsen, xAOC, 52 weeks ending 12/27/25, 5-HTP.