Copper Peptides vs Retinol Can You Use Copper Peptides With Retinol? 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 GHK Cu Skin Cream Proven Collagen & Anti Aging, $279 GHK Cu Scalp Solution Empower Pharmacy Collagen Trois: Tretinoin + Copper + Estriol Trio UluRx
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tretinoin vs ghk cu 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an update—it's been 12 weeks since I started using GHK