ghk-cu peptide uses research Copper Tripeptide-1 – Peptagon GHK-Cu Complete Guide: Skin &

And don't worry about it staining your skin

The dosing logic differs because MK-677 has a much longer half-life than Ipamorelin

PLoS ONE 8:e55375 Collier TJ, Kanaan NM, Kordower JH (2017) Aging and Parkinsons disease: different sides of the same coin

Look for products with: Stated GHK-Cu concentration (not just contains copper peptides) Opaque or tinted packaging to protect from light Reasonable formulation that doesnt include strong acids in the same product Cool storage recommendations followed Documented stability or third-party testing where available Avoid products with: Vague active ingredient labels Clear bottles in bright store displays (probably degraded) Very low GHK-Cu concentrations buried in proprietary blends Prices that dont match concentration or brand quality Key Takeaway: Injectable GHK-Cu protocols typically use 1 to 5 mg subcutaneously several times per week, but published evidence for this route is limited Can I Combine GHK-Cu with Other Actives

Advanced Dermatological Research , 28(2), 8192

Someone buys a strong copper peptide serum, applies it twice daily from day one, experiences significant irritation, and concludes that copper peptides don't work for them