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Can You Get Too Much B12
Rotate sites to prevent irritation
Handle under standard laboratory chemical hygiene, for in-vitro research use only
National Institutes of Health
Clean the injection site with an alcohol prep pad, pinch a fold of skin, insert the needle at a 45-90 degree angle (depending on body fat levels), inject slowly over 3-5 seconds, and dispose of used syringes immediately in a sharps container
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