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is it safe to take b12 injections at Home - Safety Guide for Self-Administration B12 Shots Side Effects And
Description
For customized products, the MOQ may be higher

The injection is given in the upper arm (deltoid muscle) as an intramuscular injection

Important limitations you should know For people with normal B12 levels, the evidence is far less compelling

Severe muscle weakness or cramping, which can be a sign of low potassium that needs treating
