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Physicians J Med

The bioavailability difference between the two routes compounds the distinction: topical application creates a localized skin depot, while injection delivers the peptide systemically at concentrations impossible to achieve through the skin barrier

Contraindications: Certain medical conditions may preclude specific peptides

Further research is necessary to fully characterize its mechanisms of action and broader applications within biomedical science

Serious allergic reactions: Seek emergency medical attention if you experience hives, difficulty breathing, feeling light-headed, or swelling of your face, lips, tongue, or throat (anaphylaxis or angioedema)

Targeted PubMed searches yielded 14 high-quality references, including clinical trials and mechanistic studies, supplemented by 4 authoritative sources due to the niche nature of recent systematic reviews on copper peptide GHK-Cu