GHK-Cu Dosage Calculator Where available as an injectable reference material, GHK-Cu is not sold with an official or recommended dosage
The more useful legitimacy question isn't a yes/no verdict
Growth Factor Modulation: The peptide upregulates growth hormone receptor expression on tendon cells, making them more responsive to circulating growth factors
I tried increasing the frequency of SI from 2 weekly to 1 weekly and the flushing got much worse - so I think this is the likely culprit
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The induction of vasorelaxation in aorta without endothelium by 0.1, 1, 10, or 100 g/ml BPC 157 was 9.0 2.5%, 13.1 4.2%, 15.2 3.2% or 19.2 3.5%, respectively