5-Hydroxytryptophan is a naturally occuring metabolite of the essential amino acid L-tryptophan. 5-HTP helps increase serotonin production, and helps normalize sleep patterns and promotes well-being. The 5-Hydroxytrytophan used by Country Life is extracted from plant sources and is the purest form available. Suggested Use Adults take one capsule daily or as directed by a health care professional. Ingredients 5-HTP (5-hydroxytryptophan) (seed) 50 mg