Double Potency 5-htp Extra is a comprehensive formula designed to support mood and relaxation. Central to this formulation is 5-Hydroxytryptophan (5-htp), a naturally occurring amino acid that is the immediate precursor of Serotonin. This plant derived compound sourced from the Griffonia simplicifolia, a climbing shrub native to West and Central Africa, helps the body to naturally produce this hormone, helping you attain an improved state of well-being.