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To each sample, 640 [iL 0.1 M Tris buffer, 10 iL 500 μΜ test compound, and 250 lL of NRS was added Size:20mg Pre-Filled Pen (SubQ) GHK-Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes All https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs13300-025-01733-8/MediaObjects/13300_2025_1733_Fig4_HTML.jpg
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