Est. 1973 + Energy + Red Blood Cells + Nerve Impulse Transmission Dietary Supplement Lab Verified Nutrition Energetic, healthy and bright! A group of important water-soluble vitamins with similar functions in the body, B-complex vitamins help support healthy hair and skin, normal nerve impulse transmission, immune system function, and healthy red blood cell formation. They also work together to support the metabolism of carbohydrates, fats and proteins for energy.