Ingredient or product comparison
Best GHK-Cu Cosmetic Dosage for Complexion: Product Comparison
0.05–0.1% Aqueous serum 5–10% of stated concentration Minimal to none. Below efficacy threshold Very low Subtherapeutic. Cost without benefit 0.5–1% liposomal Liposomal serum 15–25% effective delivery 8–12 weeks for visible texture improvement Low Optimal bala
This source-based comparison does not add ratings or recommend a winner.
- 0.05–0.1%
- Aqueous serum
- 5–10% of stated concentration
- Minimal to none. Below efficacy threshold
- Very low
- Subtherapeutic. Cost without benefit
- 0.5–1% liposomal
- Liposomal serum
- 15–25% effective delivery
- 8–12 weeks for visible texture improvement
- Low
- Optimal balance of efficacy and tolerance
- 1–1.5% aqueous
- Standard cream
- 8–12% effective delivery
- 10–14 weeks for measurable collagen increase
- Low to moderate
- Effective if twice-daily application maintained
- 2% aqueous
- High-strength serum
- 10–15% effective delivery
- 6–10 weeks but higher dropout rate
- Moderate to high
- Increased irritation without proportional benefit
- 2%+ anhydrous
- Oil-based carrier
- 30–40% effective delivery
- 6–8 weeks but formulation stability concerns
- Moderate
- High bioavailability but copper stability questionable