Best Naturals Vitamin B12 6000 mcg 120 Tablets. Vitamin B-12 (Methylcobalamin) is a water soluble vitamin necessary for the maintenance of a healthy nervous system and for the metabolic utilization of fats and proteins. Vitamin B-12 is also essential for the synthesis of DNA during cell division and therefore is especially important for rapidly multiplying cells such as blood cells.*
Excellent I'm vitamin b12 deficiency. My nails were half brown color and they are clear now so I know they are good quality.