B-12 Methylcobalamin is the natural (as in "found in nature") form of B12 Cyanocobalamin is the man-made version, also more shelf stable, butit has a molecule of ctyanide bound to the methylcobalamin... so far from "better", your liver would need to break the bond between the cyanide and methylcobalaim in the cyanocobalamin type of B12 then dispose of the cyanide. If you go with methylcobalamin in the 1st place, it's bio-available as soon as it hits your bloodstream..
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