Copper Peptides vs. Retinol: Which Anti Aging Powerhouse is Right for Pure & Cimple Revitalize Your Skin: The Benefits of Copper Peptide for Youthful Glow Did you know that Tretinoin can damage GHK Copper Peptides?. If you use Tret at night, save your GHK Lux for the morning. , Get the full safety guide on our YouTube Channel!, #platinum_skin_care Ghk Cu Vs Tretinoin For Anti Aging Alternating tretinoin and GHK Cu (copper peptides) nightly maximizes anti aging benefits while minimizing irritation. , Both are potent but DIFFERENT actives. Tretinoin speeds up cell turnover and Copper Peptides vs. Retinol & Vitamin C: What to Choose? by DrBeautiology Medium