Other Foods: Garlic, onions, tomatoes, and many other foods can add to the consumption of glutathione
Product Name: GHK-Cu Classification: Copper Peptide Complex Structural Description: Tripeptide-copper complex (Glycyl-L-histidyl-L-lysine:copper(II)) CAS Number: 89030-95-5 Molecular Weight: 402.92 g/mol (peptide + copper complex) Purity: 99% (verified by HPLC and Mass Spectrometry) Physical Form: Lyophilized (freeze-dried) powder Intended Use: In-vitro research use only not for human consumption Related research compounds Comparable catalog records with published variants and certificate status
32:e2348
This peel-off mask transforms from a white cream to a transparent film, locking in nutrients for a glass-skin finish

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

Discovery of Small-Molecule HIV Fusion and Integrase Inhibitors Oleuropein and Hydroxytyrosol: II