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 better than tretinoin? #dermreacts #tretinoin #copperpeptide Collagen Trois: Tretinoin + Copper + Estriol Trio UluRx Collagen Trois: Tretinoin + Copper + Estriol Trio UluRx
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tretinoin and ghk cu Compounding for Anti-Aging Skin Care