These studies confirm its safety for topical applications
Topical products fall somewhere in between, depending on the manufacturer and whether the product is classified as a cosmetic or a compounded preparation
Clinical, Cosmetic and Investigational Dermatology Witschi et al
GHK-Cu at Calibrate IV The Calibrate IV GHK-Cu Copper Peptide Cream delivers a 2% medical-grade concentration the threshold at which clinical studies demonstrate measurable fibroblast activation and collagen density improvement
PROEX 215/17 and 093.7/21), and conformed to EU Directive 2010/63EU and Recommendation 2007/526/EC regarding the protection of animals used for experimental and other scientific purposes, enforced in Spanish law under Real Decreto 1201/2005
Its manufactured through a unique fermentation process to ensure purity, stability, and bioavailability