Liquid blend of unmethylated B12 forms to promote nerve and mitochondrial health. Hydroxycobalamin is a precursor form of vitamin B12 converted in the body to both methylcobalamin and adenosylcobalamin. It is similar to cyanocobalamin without the cyanide moiety. Adenosylcobalamin is an activated form similar to methylcobalamin, which is found in the cytosol of cells and predominates in blood and other fluids. Adenosylcobalamin is the major form of vitamin B12 stored in the mitochondria of cellular tissues and is a key cofactor in carbohydrate metabolism for the enzyme methylmalonyl-CoA mutase used to produce succinyl-CoA. Optimal levels also support healthy synthesis of neuronal myelin. Unique liquid blend of adenosylcobalamin and hydroxycobalamin offers unmethylated B12 to promote nerve and mitochondrial health. Nerve and mitochondria support; Convenient, great-tasting liquid formula for easy dispensing; Made with hypoallergenic, vegan ingredients; Dietary ConsiderationsNon-GMOServing Size:1 mlServings Per Container:30Amount Per ServingVitamin B12 (formulated as adenosylcobalamin and 50% hydroxycobalamin) 1000 mcgOther Ingredientspurified water, natural glycerin, citric acid, potassium sorbateSuggested UseAs a dietary supplement, take 1 ml (1 full dropper), 1-3 times daily, with meals.Commitment to Quality Program. Sourced and manufactured to avoid: Artificial Additives, Allergens, GMOs, Environmental Contaminants, Added ExcipientsWarningIf you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.Store sealed in a cool dry area shake well before use. Keep out of the reach of children.