how is a b12 injection given to self-inject intramuscular vitamin - Overview B12 Injection Dosage and Frequency:

After reconstitution, the solution should remain refrigerated at 28C and protected from freeze-thaw cycles, which can cause peptide aggregation and measurable loss of bioactivity

These landmark studies showed that mice with adipose-tissue-specific NNMT knockout remained lean when fed high-fat diets that caused wild-type mice to become obese, and that these protected mice had increased energy expenditure, enhanced fatty acid oxidation, improved glucose tolerance, and elevated NAD+ levels in adipose tissue

Unfortunately for AOD 9604, it did not pass this study

If you are prioritizing results and do not mind daily subcutaneous injections, this is where you start