glutathione benefits for skin whitening skin: The truth about this antioxidant Glutathione: An Incredible Ingredient for

The AAFPs evidence-based clinical review states directly: Oral administration of high-dose vitamin B12 (1 to 2 mg daily) is as effective as intramuscular administration for correcting anemia and neurologic symptoms in patients with B12 deficiency (Langan RC, Goodbred AJ, American Family Physician, 2017)

Transdermal delivery offers the advantage of bypassing the first-pass effect in the liver, which may improve bioavailability compared to oral administration

-Susan Yep hCGer 17: I used the B-12/Lipovite combo shot that was given to me each Monday during the protocol

The loss of enterohepatic recirculation would definitely cause an additional loss of 5mcg of B12 that is not recovered from bile