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Proceedings of the National Academy of Sciences of the United States of America 99 (24): 1555415559
25-29 gauge needle 1/2- 1 length for Subcutaneous Injection depending upon angle of injection and whether you pinch or dont pinch the skin at the injection point
Unlike oral supplements, which rely on the digestive system for absorption, these injections deliver the vitamin directly into your muscle tissue
Apply a cold pack to the injection site before and after the injection to reduce pain
Taking excess B12 can interfere with the effectiveness of certain other medicines, particularly diabetes medications Laser MD Medspa Not recommended for people with certain conditions like Leber's disease, cobalt allergies, or severe kidney problems
