Copper peptide
GHK-Cu is discussed in skincare, cosmetic, and broader peptide contexts. This page separates cosmetic discussion from medical or systemic claims.
Use precise language around topical/cosmetic context and require sources for any health claim.
Appears in consumer skincare and peptide content.
Claims vary widely by product category and route of use.
Useful as a lower-risk example of how the site separates contexts.
Evidence level: Editorial classification
Sources: U.S. Food and Drug Administration
Use the source record to keep the page focused on classification and claim hygiene.
Source records are stored in the repo and linked from each claim.
FDA warning letter discussing peptide products marketed online and the limits of research-use-only positioning.