Due to the added Vitamin D3, our Vitamin B Complex is not vegan-friendly. There are 8 B Vitamins collectively known as B Complex Vitamins. These are Vitamins B1 (Thiamin), B2 (Riboflavin), B3 (Niacin), B5 (Pantothenic Acid), B6 (Pyridoxine Hydrochloride), B7 (Biotin), B9 (Folic Acid), and Vitamin B12 (Cobalamin).