The dosing guidance below is synthesized from pharmacokinetic data, practitioner consensus, and small clinical series
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
Rat studies demonstrated 64.5% reduction in wound size compared to 45.6% for vehicle-treated and 28.2% for control groups, accompanied by significantly lower inflammatory markers
The column was then washed with 10 CV of 25 mM imidazole (Sigma-Aldrich) in DPBS (pH 7.2), followed by elution with 10 CV of 250 mM imidazole in DPBS (pH 7.3)
Salinity-induced glutathione synthesis in Brassica napus
Just keep in mind that it takes time and consistent use to see changes
