Ingredient or product comparison
GHK-Cu Collagen Boost Results Timeline Comparison
Weeks 1–4 Gene upregulation (COL1A1, COL3A1), NF-κB suppression, increased fibroblast mitochondrial activity Reduced redness, improved moisture retention, smoother texture 15–20% reduction in TEWL, 10–15% decrease in erythema index Early-stage response. Indica
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- Weeks 1–4
- Gene upregulation (COL1A1, COL3A1), NF-κB suppression, increased fibroblast mitochondrial activity
- Reduced redness, improved moisture retention, smoother texture
- 15–20% reduction in TEWL, 10–15% decrease in erythema index
- Early-stage response. Indicates cellular engagement but not structural remodeling yet
- Weeks 5–8
- Fibroblast proliferation increases 40–60%, early procollagen secretion, elastin synthesis begins
- Subtle firmness improvements, slight reduction in fine lines under direct light
- 8–12% increase in dermal echogenicity on ultrasound
- Transition phase. Some users see confirmation, others still waiting for visible proof
- Weeks 9–16
- Peak collagen deposition, cross-linking maturation, MMP downregulation sustained
- Measurable reduction in fine lines, improved skin firmness, enhanced elasticity
- 12–18% increase in dermal thickness, 20–25% reduction in wrinkle depth on profilometry
- Primary efficacy window. This is where clinical trials measure statistical significance
- Weeks 17–24
- Collagen remodeling stabilizes, maintenance-level synthesis continues
- Peak visible improvement, long-term structural support established
- 18–22% sustained increase in dermal density, 30–35% improvement in elasticity metrics
- Plateau phase. Continuing application maintains results, stopping allows natural degradation to resume