ghk cu antibody formation or immune response long term GHK-Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes Copper Peptides and Cell Interaction
Description
The reported adverse events were limited to transient injection site edema, pain, pruritus, and erythema, and no serious or prolonged complications were identified
Add bacteriostatic water to the lyophilized vial using a sterile syringe
Boucard AA, Ko J, Sdhof TC
So not only are you not producing as much as normal but you are using it up really quickly too
