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After a B12 injection, avoid strenuous activity for 24 hours, refrain from soaking in hot baths or jacuzzis for at least 24 hours, and do not rub the injection site

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But, of course, we hope to see more studies done on the exact branded ingredients in the future

It mimics the glucagon-like peptide-1 hormone that your gut produces after eating
Gentle warming in your hands for a few minutes is acceptable