Thiamin (B1) 39mg,Riboflavin (B2) 50mg,Niacin (B3) 50mg,Vitamin B6 41mg, Folic Acid 400mcg,Vitamin B12 50mcg, Biotin 0.05mg, Pantothenic Acid 50mg,Choline 50mg, Inositol 50mg, PABA 50mg. Vitamin B1, B2, niacin (B3), B6 and pantothenic acid contribute to the reduction of tiredness and fatigue.