... acid, Biotin, Folic acid, Inositol, Choline, etc Vitamin B Compound TabletContent: Vitamin B1, B2, B6, B12, Niacin, Pantothenic acid ... .B6 (pyridoxine) – needed for metabolism of protein, hence requirements related to protein intake; helps to maintain fluid balance, a ... particularly red blood cells.Biotin – involved in carbohydrate, protein and fat metabolism. Required for healthy skin and hair.