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Oral administration is the most logical route for gut-focused applications, since the peptide is uniquely stable in gastric juice
Nat Commun 16 , 3389 (2025)
Cell Tissue Res 377 , 153159 (2019)
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What the evidence actually says (the useful bits) Heres the honest therapist take: GHK-Cu has interesting science, but skincare marketing often runs ahead of the human clinical data
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