Ingredient or product comparison
GHK-Cu Scar Reduction Results Timeline Comparison
Atrophic (acne, post-surgical) 8–10 weeks 12–16 weeks 16–20 weeks Fibroblast proliferation + dermal thickening Fastest responder. Tissue building vs remodeling Hypertrophic / Keloid 20–32 weeks TGF-beta downregulation + MMP-mediated collagen remodeling Slowest
This source-based comparison does not add ratings or recommend a winner.
- Atrophic (acne, post-surgical)
- 8–10 weeks
- 12–16 weeks
- 16–20 weeks
- Fibroblast proliferation + dermal thickening
- Fastest responder. Tissue building vs remodeling
- Hypertrophic / Keloid
- 20–32 weeks
- TGF-beta downregulation + MMP-mediated collagen remodeling
- Slowest responder. Excess tissue must degrade first
- Hyperpigmented (PIH)
- 10–12 weeks
- N/A
- 12–24 weeks
- Melanocyte regulation via oxidative stress reduction
- Indirect mechanism. Slower than direct tyrosinase inhibitors
- Stretch marks (striae)
- 10–14 weeks
- 14–18 weeks
- 18–24 weeks
- Elastic fiber synthesis + collagen I/III ratio normalization
- Moderate responder. Requires both collagen and elastin repair