Non-GMO 100% Vegan Dietary Supplement Fast-Acting Long Lasting Lab Verified Discussion: B-Complex vitamins are a group of important water-soluble vitamins with similar functions in the body. B-Complex vitamins provide nutritive support for healthy hair and skin, nerve impulse transmission, immune system function and red blood cell formation. They also work together to aid in the metabolism of carbohydrates, fats and proteins. The two-stage time release formula is designed to release half of the ingredients rapidly and other half gradually over a period up to 8 hours** which may help extend the availability of these vitamins to the body over a longer period of time.*Based on in-vitro dissolution tests designed to stimulate the digestive process. Individual results may vary.