Ingredient or product comparison
GHK-Cu for Skin Elasticity: Product Type Comparison
Pre-formulated serums 0.05–0.5% 6–12 months (unopened) $40–$120 Moderate. Vehicle-dependent Convenient but concentration often subtherapeutic; verify third-party purity testing Lyophilized peptide powder 98%+ pure compound 24+ months (frozen) $60–$150 Excellen
This source-based comparison does not add ratings or recommend a winner.
- Pre-formulated serums
- 0.05–0.5%
- 6–12 months (unopened)
- $40–$120
- Moderate. Vehicle-dependent
- Convenient but concentration often subtherapeutic; verify third-party purity testing
- Lyophilized peptide powder
- 98%+ pure compound
- 24+ months (frozen)
- $60–$150
- Excellent when properly reconstituted
- Requires DIY formulation knowledge; highest cost-effectiveness for long-term use
- Cream formulations
- 0.1–1.0%
- 3–6 months (opened)
- $50–$180
- Low-to-moderate. Occlusive base limits penetration
- Moisturizing but peptide delivery is compromised by heavy emollients
- Professional peel additives
- 2.0–5.0%
- Single-use ampoules
- $200–$400 per treatment
- High. Barrier disruption increases uptake
- Clinical setting only; not suitable for home use due to concentration