This Vitamin B12 supplement by Life Extension provides 500mcg per lozenge, formulated for easy absorption. Vitamin B12 is essential for energy production, red blood cell formation, and supporting the proper functioning of the nervous system. The lozenge form ensures direct absorption under the tongue, bypassing the digestive system for greater bioavailability. Ideal for individuals looking to maintain optimal B12 levels, particularly those on vegetarian or vegan diets, or those with absorption issues.