vitamin b12 injections and alcohol Hydroxocobalamin Injection: for Energy & Anemia — Mountainside Medical Adverse reactions to vitamin B12

Even those who get enough in their diet can be deficient in the vitamin if they have certain medical conditions or take specific medications

Copper Peptides in Skin Care: Benefits and Side Effects

Energy level boosts are not the only benefits of B12 injections

For conditions where there are defective nerves, such as peripheral neuropathy, neuralgia, and Mortons neuroma or any interspace perineural neuritis, injecting a concentrated B12 dose directly around the nerve has been shown to promote nerve repair and diminish pain from nerve damage

Currently used off-label in weight management and wellness clinics

As B12 is a water-soluble vitamin, it's generally considered safe (because any not used will be excreted via your urine), but even so you shouldn't take more than the recommended doses unless recommended to do so by your GP, as some studies have shown possible negative impacts of overdoing it