Ingredient or product comparison
GHK-Cu Anti-Aging Complete Guide 2026: Formulation Comparison
Topical Serum 0.5–2% GHK-Cu Stratum corneum to upper dermis (1–3% absorption) 8–12 weeks for visible wrinkle reduction Degrades rapidly in light, air, and pH >6.5. Requires opaque, airless packaging Best for localised facial anti-aging; limited systemic effect
This source-based comparison does not add ratings or recommend a winner.
- Topical Serum
- 0.5–2% GHK-Cu
- Stratum corneum to upper dermis (1–3% absorption)
- 8–12 weeks for visible wrinkle reduction
- Degrades rapidly in light, air, and pH >6.5. Requires opaque, airless packaging
- Best for localised facial anti-aging; limited systemic effect
- Liposomal Topical
- 1–3% GHK-Cu in liposomes
- Upper to mid-dermis (5–8% absorption)
- 6–10 weeks for skin texture improvement
- More stable than standard serum but still light-sensitive; refrigeration recommended
- Improved dermal penetration vs standard topicals; higher cost
- Injectable (Subcutaneous)
- 1–5mg per dose, reconstituted
- Systemic circulation + local tissue
- 4–6 weeks for skin elasticity; faster wound healing within 2 weeks
- Must be refrigerated at 2–8°C; use within 28 days post-reconstitution
- Achieves therapeutic plasma levels; full-body regenerative effects
- Oral Supplement
- 50–200mg per capsule
- Negligible (degraded in GI tract)
- No measurable anti-aging effect
- Stable in capsule form but ineffective for tissue delivery
- Not bioavailable. GHK-Cu is a tripeptide broken down by digestive enzymes