This may be due to copper's ability to enhance the expression of metalloproteinases (MMPs).16 MMPs normally regulate the degradation of collagen, and a specific one, MMP-1, may be responsible for the initiation of collagen fragmentation.17 Supporting this, a 2024 study noted that elevated MMP-1 levels appear to contribute to aging skin and that higher MMP-1 levels in mice led to:18 The loss and fragmentation of dermal collagen fibrils Contracted fibroblast morphology Reduced collagen production Increased expression of pro-inflammatory mediators Additionally, a 2016 study found that GHK-Cu significantly increased gene expression of MMP-1 and MMP-2 at the lowest concentration, which the studys authors considered to be one of the reasons the peptide was able to increase collagen and elastin production.19 So, what this could ultimately mean is that using too much GHK-Cu (or other copper peptides) may in theory increase the skins MMP-1 concentration above the levels involved in healthy collagen production, taking it into the collagen fragmentation and breakdown territory seen in older skin with naturally higher MMP-1 levels
Further studies involving robust mechanistic validation, pharmacokinetic profiling, and clinical translation are essential to determine whether these compounds possess genuine therapeutic potential or if their effects are limited to experimental settings
What you'll learn The importance of consistent, moderate dosing for long-term skin health
(2008) The human tri-peptide GHK and tissue remodeling, Journal of Biomaterials Science , 19(8), pp
Researcher attestation Aero Peptides supplies research-grade peptides for in-vitro and laboratory use only
Antioxidant Support Semaglutide (the active ingredient in Wegovy) works as a GLP-1 receptor agonistit mimics glucagon-like peptide-1, a hormone that regulates appetite, slows gastric emptying, and improves blood glucose control
