Science-Based Nutrition™ Doctor's Best Fully Active B Complex contains all eight essential B vitamins, designed for optimal absorption and utilization to support overall health and well-being. These water-soluble vitamins play crucial roles in cell metabolism, supporting DNA, organs, genes, cells, tissues, skin health, the immune system, enzyme functions, and energy production. Quatrefolic® is the glucosamine salt of (65)-5-methyltetrahydrofolate, the most bioavailable form of folate, offering greater stability and water solubility. Folate is essential for supporting DNA, proper cell division, and cardiovascular, mental, and emotional well-being. Key Benefits: - Helps support energy production - Helps support body metabolism and new cell formation - Helps support DNA, the body's genetic blueprint - Full spectrum B vitamins support overall health and well-being. This product is Vegan™, Non GMO, Gluten Free, and Soy Free.