Quick answer
Peptara Labs has published one GHK-Cu lot, GHKCU-260417-A, at 99.62% HPLC purity on certificate COA-2026-4173, tested in June 2026 by Titreon Analytical, with a Janoshik endotoxin report alongside it. GHK-Cu has no approved human use. The certificate and the Janoshik report each open on their laboratory’s own site.
Delivery terms, rating and testing as published by Peptara Labs. Discount terms are set by Peptara Labs.
4 min readUpdated 15 September 2026Research and educational reading only
A naturally occurring copper complex with one randomized clinical study on the record, described here without any result.
GHK-Cu is the copper complex of GHK, glycyl-L-histidyl-L-lysine, a tripeptide that occurs naturally in human plasma, saliva and urine.
Source: PubMed 36905132
GHK-Cu has no approved human use. Peptara Labs sells it as research-grade material.
Source: peptaralabs.io/llms.txt
Most of the published work is laboratory and animal research. One multicenter, randomized, placebo-controlled study tested a GHK-Cu gel applied to the skin of patients with diabetic neuropathic ulcers. This guide reports no result from it.
Sources: PubMed 35083444, PubMed 17147644
As published by Peptara Labs, which describes Titreon Analytical as aligned to ISO/IEC 17025:2017, not itself accredited. This site has not tested this lot. Source: peptaralabs.io/coa
GHK-Cu carries a second bacterial endotoxin report from Janoshik, report number 195511, analysed on 30 June 2026. The certificate and the report are separate documents from separate laboratories, and each opens from its QR code on the website of the laboratory that issued it.
Sources: peptaralabs.io/trust, peptaralabs.io/coa, the Peptara Labs website, read 14 September 2026
The five things to read before a GHK-Cu order, starting with the lot.
Lot GHKCU-260417-A, at 99.62% HPLC purity on certificate COA-2026-4173, tested in June 2026 by Titreon Analytical, with a Janoshik endotoxin report alongside it.
No. GHK-Cu has no approved human use. The one randomized clinical study on the record tested a gel applied to the skin, and this guide reports no result from it.
Yes. A Janoshik bacterial endotoxin report, number 195511, is published for lot GHKCU-260417-A, analysed on 30 June 2026.
On the laboratories’ own sites. Certificate COA-2026-4173 opens on titreonanalytical.com with the key printed on it, and Janoshik report 195511 opens on verify.janoshik.com.
Legality is a question this guide hands off rather than answers. Peptara Labs covers the question on its page Are peptides legal in Vietnam?
Is GHK-Cu legal to buy in Vietnam? This guide does not give legal guidance. Peptara Labs covers it on its page Are peptides legal in Vietnam?
Three questions about the documents behind a Peptara Labs order. Each answer links its source. This site has not tested any product.
Yes, one per product on its certificates page, each from a recent batch with its lot code, HPLC purity and test date. Its website also lists the printed batch certificate for what shipped among what arrives.
Sources: peptaralabs.io/coa, the Peptara Labs website, read 15 September 2026
By its description: identity by HPLC and LC-MS, HPLC purity against a 95.0 percent release criterion, net peptide content, sterility, bacterial endotoxin, heavy metals and a fentanyl screen.
Source: peptaralabs.io/coa
Yes. Each Titreon certificate has a QR code and a printed key that open it on titreonanalytical.com, and each Janoshik endotoxin report opens on verify.janoshik.com. This guide checked both on 15 September 2026.
Sources: peptaralabs.io/coa, titreonanalytical.com, verify.janoshik.com