... . Our 5-HTP (5-Hydroxytryptophan) is from Griffonia Simplicifolia origin, which is native in Africa; and it ... Name: Griffonia Simplicifolia Extract Plant Origin: Griffonia Simplicifolia Specification: 5-HTP (5-Hydroxytryptophan) 98%, 99% HPLC In African folk medicine, Griffonia Seed is ... (5-HTP), the main active component of the Griffonia simplicifolia seed, is an amino acid that is the intermediate ...