Vitamin B12 is good for you. But many people dont get sufficient B12 from their diets alone. Reasons range from age related insufficiency to dietary intake B12 comes primarily from animal sources, so those following a vegetarian diet may not get enough. B12 Elite combines two types of cobalamin adenosylcobalamin and methylcobalamin. These are active forms meaning body can make use of them right away. Adenosylcobalamin helps preserve neuronal function. Leucine rich repeat kinase 2 (LRRK2) is a type of enzyme that modifies other proteins by adding phosphate groups.1 Inhibiting the activity of this enzyme has been associated with helping to preserve neuronal tissue. VitaGen is NOT responsible for any and all packages detained/impounded/or returned to us by the country’s respective Custo.