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GHK‑CU and Acne: Does GHK-Cu Treat Period Pimples? | TikTok Size:120 Capsule glutathione glow peel This copper-binding tripeptide activates TGF-beta/SMAD pathway signaling, stimulates collagen I and III synthesis, upregulates TIMP-1 and TIMP-2 to protect collagen from degradation, and modulates gene expression across approximately 4,000 human genes https://m.media-amazon.com/images/I/9145WKP4rHL._AC_UF1000,1000_QL80_.jpg

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