GHK-Cu

Corrections

17 Nov 2025: Peptide Sciences

Test results for sample rkh8jub were published from 31 Oct to 17 Nov 2025, but did not belong to Peptide Sciences: the sample was misidentified, and re-attributed to the correct vendor.

11 Nov 2025: Peptide Powder Home

The sample was misslabaled by the requester, actual quantity for this sample is 50 mg, Quantity has been edited with correct value (previus value was 5 mg) and a new lab result.

31 Jul 2025: Peptidology

Peptidology ratings for GHK-Cu were updated from B to A, after taking into account the Batch IDs that are included on vials, but were initially not identified by Finnrick.

10 Jul 2025:

Lab E tests published 10 Jul 2025: change in testing and analysis methodology on 15 GHK-Cu tests previously published in May and June. New COAs were issued by the lab, and test scores have been updated.

Launch with Finnrick

Some of the samples listed on this page were submitted by their vendor, as part of the Launch with Finnrick vendor support program.

The program is designed to help vendors get listed on the Finnrick web site while protecting the integrity of our rating system.

The vendor submitted four samples per product, two of which were tested by Finnrick for identity, purity and quantity according to our usual process. The vials were anonymized before being sent to the testing lab.