bio nutrition uses methylcobalamin in the production of sub-lingual b-12 6,000. This more absorbable form of b-12 is pre-converted to make it more readily available for the body to absorb.* b-12 supports various systems of the body and can be a healthy addition to ones diet.* *these statements have not be evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure of prevent any diseases.