L-tryptophan, GABA (gamma-aminobutyric acid), Melatonin, Vitamin B1 (thiamine mononitrate), Vitamin B2 (riboflavin), Nicotinamide, Calcium D-pantothenate, Vitamin B6 (pyridoxine hydrochloride), Biotin (D-biotin), Folic Acid, Vitamin B12 (cyanocobalamin).