ghk cu tolerance downregulation desensitization effectiveness over time Biological efficacy of GHK-Cu after ionic-liquid loading. (a) Cellular Exploring the beneficial effects of
Description
Small human cosmetic trials of topical copper peptide formulas have been linked with smoother texture and better elasticity after weeks of steady use, though the size of the shift varies by skin type

Therefore, we examined CD31 expression

You could argue that it was just chance or maybe placebo, but equally it could have been nocebo and I could have felt worse as a result of using one that was suspect
Disclaimer: This product is intended for research and laboratory use only