b12 methylcobalamin injectable Compounded (Vitamin B12) Injection, 5mg/mL Methylcobalamin Injection 1500mcg - Vitamin

Adults typically need 2.4 mcg per day (which goes up to 2.6 and 2.8 mcg per day if pregnant or breastfeeding, respectively)

People with active cancer, thyroid disorders, or history of peptide hypersensitivity should not use it

Nicotinamide N-methyltransferase (NNMT) is a cytoplasmic enzyme that catalyzes the transfer of a methyl group from S-adenosyl-L-methionine (SAM, the universal methyl donor) to nicotinamide (the NAD + salvage precursor), producing 1-methylnicotinamide and S-adenosyl-L-homocysteine

We require a verified purity of 99% or higher and perform independent third-party spot testing to confirm that select lots meet our internal standards for identity, purity, and composition