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Send a correction.
Editorial corrections, primary-source pointers, and regulatory updates are welcome. We cannot provide legal advice, medical advice, or product recommendations.
What to send, and what we cannot answer
The most useful messages we receive are corrections — a citation that points to the wrong PubMed ID, a CosIng reference number that has changed, an FDA bulks list status that has moved since the page was last verified, or a regulatory document we have missed. If you read the site against the primary sources and notice a gap, please tell us.
We also welcome pointers to new published research or recent agency action on GHK-Cu, copper peptides generally, or the cosmetic-vs-drug claim-boundary framework. If a PCAC meeting transcript, a Federal Register notice, an EMA scientific opinion, or a new peer-reviewed paper has changed the picture, we want to know.
What we cannot answer: whether your specific product, marketing copy, or compounding protocol is lawful (consult an attorney and your regulatory affairs specialist); whether GHK-Cu is safe for you personally to use (consult a physician); whether using GHK-Cu would trigger a positive doping test in your sport (consult your national anti-doping authority and the in-force WADA Prohibited List); whether a specific vendor's product is genuine, pure, or correctly labeled (we do not certify products and do not test vendor material). We are an editorial publisher writing about the regulatory record, not a consultancy.
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Use the form below to send a correction, a source pointer, or a regulatory update. The form posts to a generic editorial inbox; we read every message but cannot guarantee an individual reply.
(Form fields: Name, Email, Subject, Message. Submit button.)
For reference, the full citation index is on the references page, and the editorial standards are described on the about page.