So, lets clear up the confusion for good
It cannot establish both molecular identities, the declared ratio, net quantity, uniformity, aggregation, stability or microbiological quality
Researchers say they dont even have genetic proof that humans naturally produce it, and we dont even know which specific receptors it might bind
Clin J Am Soc Nephrol CJASN 13:1897 Perazella MA, Rosner MH (2022) Drug-induced acute kidney injury
compared with the commercial products, the number and the positions of impurities of six batches of samples of the product are consistent with those of the commercial products, and the single impurities and the total impurities are slightly smaller than those of the commercial products
B12 is water-soluble and excess is excreted in urine