can i do b12 injections myself at Home - Safety Guide for Self-Administration Vitamin B12 Injection Sites: All
Description
All B vitamins, B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate), and B12 (cobalamin), dissolve in water

And if you are deficient
Posted by Vicki G

Energizing the Body: Vitamin B12 is known to boost energy levels, which is crucial for those battling fatigue or dealing with strenuous physical activities
Medical distributors and wholesalers can benefit from its use in severe multidrug-resistant (MDR) gram-negative infections, ventilator-associated pneumonia, septicemia, and other life-threatening hospital-acquired infections