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GHK Cu Dosage: A Doctor's Guide to Calculations, Mixing & Safety Skin Perfection GHK Cu Copper Peptides Powder for Face 99.7% Pure 1 Gram Cosmetic grade GHK Cu copper peptide powder. 1g makes up to 100ml DIY copper peptide serum for face, scalp & 7% GHK CU ACCELERANT GHK Cu Dosing: 1.7mg Day Injectable (2026)
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