The investigators reported improvements in skin density, dermal thickness, laxity (firmness), and reduction of fine lines in the GHK-Cu arm compared with vehicle control over the 12-week treatment period [3]
Subcutaneous routes support frequent timing
PPAR agonists: potential as therapeutics for neovascular retinopathies
Chronic Pain and Analgesic Properties Yehuda, S., & Carasso, R
Designed to withstand gastric juices, they maintain efficacy despite prolonged exposure to stomach acid and UV light
Reconstitution with bacteriostatic water rather than sterile water for injection allows multi-dose vial use without microbial contamination risk, but introduces benzyl alcohol as a preservative