Helloskin GHK Cu 1% Triple Peptide Regenerative Serum Amazon.com: TOSOWOONG Copper Peptide 12 Cream, 99% Purity of Copper Tripeptide 1, GHK Cu, 12 Multi Peptide Powerful Anti Aging Formula for Fine Lines, Firming, Skin Elasticity, Korean Skincare, 50ml 1.69 fl.oz. : Beauty Im always transparent about my skin struggles and try to be vulnerable to show my clients the real deal. Recently (in the past year) Ive started struggling with rosacea. I decided to give this Copper Peptide Barrier Cream Yunasence GHK Cu with Ceramides YUNASENCE Rosacea isn't just about rednessit's often a sign of a compromised skin barrier and ongoing inflammation. When the barrier is weakened, skin becomes more reactive: Increased sensitivity Higher transepidermal water