5-HTP the intermediate metabolite between the amino acid L-tryptophan and serotonin is extracted from the seed of an African plant (Griffonia simplicifolia). This dietary supplement is typically used as a sleep supplement and supports a positive mood and relaxation.* 5-HTP supports the production of serotonin in the brain and central nervous system; serotonin can impact sleep mood appetite and body temperature.* Natural color variation may occur in this product.