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Chugh 2008

It mimics endogenous GLP-1, enhancing glucose-dependent insulin secretion, decreasing glucagon secretion, and significantly reducing appetite and energy intake, which leads to clinically meaningful weight loss

The results ( Figure 2 ) show that GHK stimulates fibroblast proliferation at 5 and 10 nM after 48 hrs of treatment while GHK-PEG stimulates fibroblast proliferation at 1 nM after 24 hrs of treatment and at 5 and 10 nM after 24, 48, and 72 hrs of treatment

The peptide caused skin irritation but otherwise appeared to be safe

This approach not only enhances detoxification processes but also contributes to skin brightening, among other benefits