The supplementary NAD+ dose is 100200 mg IM, 2-3x per week
Lab protocol 8 min How to Store Peptides Correctly: A Lab Protocol Correct peptide storage is the difference between intact research material and degraded compound
Aroda VR, Edelstein SL, Goldberg RB et al (2016) Long-term metformin use and vitamin B12 deficiency in the diabetes prevention program outcomes study
Citations with a link open the study on PubMed or the publishers site
the methods differ mainly in convenience, how the peptide is absorbed, and which goals they best suit
The NHS side-effects guidance for hydroxocobalamin, the form used in the UK, lists nausea, headache, dizziness and injection-site reactions as known effects that usually pass on their own