Despite what some sources may say, there's no scientific evidence that taking B12 supplements will increase energy, concentration, memory or mood in people who already have normal B12 levels
Methylcobalamin, on the other hand, is the naturally occurring, active coenzyme form of B12
The vitamin b12 deficiency symptoms that should prompt urgent referral rather than a wellness injection are neurological: paraesthesia, unsteady gait, memory or mood changes
We also recommend keeping the injection site clean and avoiding scratching or rubbing it to prevent irritation or infection
Redditors repeatedly emphasize injection timing specificity: AOD-9604's mechanism involves amplifying hormone-sensitive lipase activity and inhibiting lipoprotein lipase
doi:10.1073/pnas.050909910