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Sci., 2003, 48, 1879)
For oral GHK-Cu, the bioavailability is generally lower than with injections or IV administration because digestive enzymes and stomach acid break down peptides
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Examples include pernicious anemia, certain gastrointestinal surgeries, and some malabsorption syndromes
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AHK-Cu is the copper-chelated form of the AHK peptide sequence (Ala-His-Lys), forming a stable copper peptide complex widely recognised within peptide and cosmetic research environments
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