can b12 injections cause hot flashes Doctor explains clinical signs of Vitamin (cobalamin) deficiency | Glossitis, mouth ulcers etc B12 and face flushing ?

With only 2 mg total, you need to be careful about dilution

Preservative-free options like sterile water or SWFI are generally reserved for situations where the entire reconstituted volume will be used at once, or where a particular protocol specifically calls for a preservative-free diluent

The National Institute of Health (NIH) recommends that healthy adults get 2.4 micrograms of Vitamin B12 each day

In some cases you may need to take B12 supplements for the rest of your life, while in other cases you will only need to take them for a short period of time while you improve your diet

Certain vitamin injections, particularly those containing NAD+ and glutathione, support collagen synthesis, helping the skin maintain a firm and youthful appearance

Therefore, setting realistic expectations and staying consistent helps you achieve lasting results