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A serum B12 level test and ideally a methylmalonic acid test should be performed before starting B12 injections
The potential for harm from a contaminated or counterfeit product is very real
Do B12 injections cause weight gain
GHK-Cu is not approved for human or veterinary use by the FDA, EMA, or any other regulatory authority
SARS-CoV-2 variants pose a general concern for the efficacy of neutralizing antibodies that may fail to neutralize infection, raising the possibility of a more severe form of COVID-19
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