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It remains available for research use only

B12 injections deliver the vitamin directly into the bloodstream, bypassing digestion

The procedure takes less than 5 minutes with no downtime required

They both refer to the same thing: injecting vitamin B12 into the body directly via a needle so the body can immediately utilize it

In clinical practice, a B1-B6-B12 injection may be considered when oral therapy is insufficient or not feasible, such as in malabsorption, severe deficiency, or when accelerated replenishment is desired under medical supervision

Just ensure that you pinch the skin if the injection site is too lean