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This is what research-grade should look like

To deter this deficiency, many people opt for intramuscular injections which increase their levels of this essential vitamin

The practical result is improved communication between brain regions, which translates into better memory encoding, faster recall, sharper focus, and enhanced ability to learn and process new information

If you are using multi-dose vials and accuracy is critical, low dead-space syringes can recover 5 to 10% more product from each vial

Learn where to self-administer a B12 shot and how to do it painlessly This article was medically reviewed by Shari Forschen, NP, MA and by wikiHow staff writer, Amber Crain