Higher concentrations aren't necessarily better and may increase irritation risk without proportional benefits
Mark the skin with a washable, skin-safe pen, or use time-stamped photos to confirm the site was rested for the full interval before you use it again
In fact, the absorption of B12 requires that you have adequate stomach acid (among many other factors), which means that if you are taking acid blockers for reflux you are likely reducing your absorption of B12
Advanced considerations For researchers with experience in metabolic optimization, several advanced considerations may be relevant
Whether b12 injections and weight loss or shots are being used, the positive effects remain the sameaiding in energy, metabolism, red blood cell production, and overall well-being
Here, they get monthly vitamin B12 injections