Topical cream (2% GHK-Cu) Epidermis and papillary dermis only (~0.5mm) ~0.1–0.3 µM in dermis 4–6 hours with repeated application Suitable for superficial scars and post-procedure maintenance. Limited efficacy for deep d…
Source: realpeptides.co
Comparison
GHK-Cu for Scar Healing: Application Comparison
Topical cream (emulsion) 1–3 mg/mL Twice daily 200–400 microns (epidermis + superficial dermis) Most convenient for facial scars; limited penetration to deep dermal scars Serum (aqueous) 2–5 mg/mL 300–500 microns (enhan…