Ingredient or product comparison
GHK-Cu Mechanisms Comparison
Collagen Synthesis Upregulates COL1A1, COL3A1 gene expression via TGF-β pathway 1–5 μM in vitro 3.6× increase in collagen I mRNA at 24h Primary mechanism. Strongest effect at mid-range concentrations MMP Suppression Downregulates MMP-1, MMP-2 gene expression;
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- Collagen Synthesis
- Upregulates COL1A1, COL3A1 gene expression via TGF-β pathway
- 1–5 μM in vitro
- 3.6× increase in collagen I mRNA at 24h
- Primary mechanism. Strongest effect at mid-range concentrations
- MMP Suppression
- Downregulates MMP-1, MMP-2 gene expression; upregulates TIMP-1/2
- 1–10 μM in vitro
- 70% reduction in MMP-1, 200% increase in TIMP-1
- Critical for matrix preservation. Requires sustained exposure
- Anti-inflammatory
- Suppresses TNF-α-induced IL-6 and IL-1β secretion through NF-κB modulation
- 5–20 μM in vitro
- 60–75% reduction in IL-6 production
- Dose-dependent. Higher concentrations required for maximal cytokine suppression
- Antioxidant Upregulation
- Increases SOD1, catalase, GPx gene expression
- 5–15 μM in vitro
- 180% increase in SOD1 mRNA
- Secondary effect. Complements anti-inflammatory action
- Wound Closure (in vivo)
- Accelerates re-epithelialization and granulation tissue formation
- 0.05–0.2% topical
- 30% faster closure vs control at day 10
- Topical formulations require pH 7.0–7.4 and refrigeration