Copper tripeptide-1
A naturally occurring copper-binding peptide used widely in topical skincare formulations.
There is reasonable laboratory and small-study support for topical copper peptides in skin appearance and wound contexts. Evidence for injectable "anti-ageing" use is far weaker and largely promotional.
Topical cosmetic use is generally low-risk for most people, aside from irritation. Injectable forms carry the usual unapproved-product risks: sterility, purity and lack of oversight.
Cosmetic (topical) products are regulated as cosmetics. Injectable forms fall under a separate, medicines-regulation pathway.
Topical GHK-Cu is widely and lawfully sold as a cosmetic. Injectable use is a medicines question and is not an approved pathway.
Topical copper-peptide cosmetics are lawfully sold in Australia under cosmetic regulation. The legal picture changes entirely for injectable forms making therapeutic claims.
This entry is general information about GHK-Cu, not a recommendation to use it. We don’t provide dosing, protocols or sourcing. Speak to a registered practitioner.
This is general education, not medical advice. Peptides.au does not sell, supply, recommend or promote any product or clinic. Always speak with a registered Australian health practitioner before making any health decision.