PureGenomics B-Complex is designed to address the nutrient requirements of common genetic variations in the methylation pathway with a unique blend of B vitamins in highly researched and activated forms. Methylation is a key regulator of genetic expression and cellular function. Healthy methylation supports cellular health, DNA synthesis, hormone and neurotransmitter production, and energy metabolism. Optimal levels of B vitamins have been associated with cellular, cardiovascular, neurological and psychological health. B vitamins support basal mitochondrial function as metabolic coenzymes, playing a key role in energy production and nutrient metabolism. Folate is offered in this formula as Metafolin 5-methyltetrahydrofolate (5-MTHF), the universally metabolized and biologically active form of folate, providing support for individuals with genetic variations in the MTHFR gene. Vitamin B12 is offered as a combination of hydroxycobalamin and adenosylcobalamin. Hydroxycobalamin is a precursor form of vitamin B12 converted in the body to both methylcobalamin and adenosylcobalamin. Adenosylcobalamin is an activated form stored in the mitochondria of cellular tissues. It is a key cofactor in carbohydrate metabolism and healthy synthesis of neuronal myelin. Benfotiamine is a lipid-soluble, enhanced-retention thiamin derivative.