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The most common side effects are pain and swelling at the injection site
Early studies suggest good tolerance, but official dosing and long-term safety guidelines are still under evaluation
The effects of exogenous GHK-Cu on fetal development or nursing infants remain unstudied
[3] A 2018 follow-up study further characterized 5-Amino-1MQ in cell-based assays and reported the following selectivity profile against other methyltransferases and related enzymes at concentrations up to 600 M: no detectable inhibition of DNMT1, PRMT3, or NAMPT
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