Natrol 5-HTP helps support a balanced mood and promotes production of serotonin throughout the day.* Sourced from high-quality ingredients, this vegetarian dietary supplement contains no milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans or sesame. 5-HTP (5-Hydroxytryptophan) is an amino acid that promotes the production of serotonin throughout the day.* With 200mg of 5-HTP per serving, this Natrol supplement offers a 100% drug-free helps support a balanced mood.* Each Natrol 5-HTP tablet is designed to gradually release 5-HTP to help you throughout the day.* Adults, take one tablet one time daily with a meal. Natrol is the #1 5-HTP brand in America and one of the nations leading manufacturers of vitamins and supplements. (1)(1) Nielsen, xAOC, 52 weeks ending 02/24/24, 5-HTP