b12 injection syringe and needle size A Guide to the Best Needles for Injections needle size for b12 injections

The Cochrane Collaboration, Chichester, UK: John Wiley & Sons

B12 Health Benefits - Relieve the body of fatigue and weakness, potentially improving stamina - Help prevent breast cancer - Prevent anemia - Treat sickle cell anemia and Alzheimer's disease - Maintain proper heart functioning - Maintain a strong nervous system B1 Health Benefits - Contributes to energy production - Rich in anti-aging properties - Reduces Alzheimer's diseases - Maintains a healthy heart - Improves memory and appetite - Prevents cataracts - Aids in the production of red blood cells B6 Health Benefits - Aids in maintaining healthy hormone levels ~ More information, precautions and interactions can be found under the "About B Vitamins tab." Before taking any new medication, either prescription or over-the-counter, check with your doctor or pharmacist

Some need 1,000 mcg if levels stay low on the lower dose

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The wrong one can leave the dose in the wrong place or make the whole thing hurt more than it should