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Cyanocobalamin (Vitamin B12)..............5000 mcg Benzyl Alcohol (preservative).................1.0% v/v Sodium Chloride.................................0.22% w/v Ammonium Sulfate...............................0.1% w/v Citric Acid..........................................0.01% w/v Sodium Citrate..................................0.008% w/v Inject subcutaneously or intramuscularly

It has an hepatic metabolism, mainly because of the glucuro-conjugation of the molecule, with the formation of inactive metabolites

But there are meaningful differences between them that are worth understanding, and the human study data tells a more nuanced story than a lot of the marketing around these peptides suggests

"You will often see at least some improvement in the hemoglobin values within a week or two," Yang says