Vitamin B-12 K-34 by Apex Energetics

What the brand says

Vitamin B12 contains high potency B12 and is useful for vitamin B12 augmentation.* It provides 500 mcg/serving, 20830% DV. This product utilizes a liquid form of vitamin B12–containing methylcobalamin dissolved in a bioavailable solution to support vitamin B12–deficient individuals.* Also available, B12-Max (K56) with 1,250 mcg of B12 per serving and Super B12 with 1,500 mcg of B12 per serving