Our fellow great apes get all the B12 they need eating bugs, dirt, and feces, but Id suggest supplements instead
Reconstitute BAC water added per vial
While experimental peptide drugs are not approved for human use, you can easily purchase them online from numerous companies and Canadian compounding facilities creating and selling the drugs for research use only. Health Canada cracked down on this last year, seizing 42 unauthorized injectable peptide drugs sold by the company Canada Peptide
1,2,6,18 The recommended laboratory evaluation for patients with suspected vitamin B 12 deficiency includes a complete blood count and serum vitamin B 12 level
That risk does not apply to adult subcutaneous peptide injections where the total benzyl alcohol exposure per dose is typically under 1.8 mg
The same researchers also reported that Selank exerted neuroprotective effects against the neurotoxic effects of chronic alcohol consumption