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Both Ozempic and Wegovy contain semaglutide, an injectable medication used to manage type 2 diabetes and promote weight loss

doi: 10.2337/db06-1491 129 BrayJJHFosterDaviesHSalemAHooleALObaidDRHalcoxJPJet al

GHK-Cu (Gly-His-Lys-Cu, 404 Da) acts via copper coordination and modulates ~4,000 genes related to tissue repair, collagen synthesis, and antioxidant defense

This article examines what distinguishes clinically relevant pre-filled GHK-Cu delivery from under-dosed cosmetic formulations, how the peptides gene-regulatory capacity extends beyond dermal remodeling into neuroprotection and wound healing pathways UK competitors ignore, and why batch-specific Certificates of Analysis (COAs) matter more than marketing claims

doi: 10.1038/s41573-025-01145-0 30 GozzelinoRJeneyVSoaresMP