GHK-Cu is the sleeper search term. The verification page should own it before the market catches up.

What to check

• Check whether the vial and product page clearly identify GHK-Cu, not vague copper-peptide language.
• Ask for a batch-matched COA with lab name, method, test date, product identity, and purity result.
• Do not treat blue colour alone as proof. Copper-peptide appearance is a clue, not a certificate.
• Compare price against documented supply, because very cheap GHK-Cu usually needs an explanation.
• Use Peptide Checker to route GHK-Cu searches into a proof-first comparison instead of another thin product page.