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Topical GHK-Copper in cosmetics is regulated as a cosmetic ingredient
Jaboska M, Grzelakowska K, Winiewski B, Mazur E, Leis K, Gazka P
J Neurosci 28:50075017
Established, science-forward copper peptide lines in 2026 include Skin Biology (founded by GHK's discoverer, Loren Pickart), NIOD's Copper Amino Isolate Serum, The Ordinary's copper peptide offering, and several professional and clinical brands such as Biopelle
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