GHK-Cu × onedaycompounds.com — lab test, February 2026
Vanguard Laboratory publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.
This certificate carries no lookup code.
Test results
This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
About this test
Label 50 mg · Lab measured 49.13 mg
98% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 12.3 mg using the measured mass, against 12.5 mg on the label — 2% less.
One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.
Independent HPLC purity analysis of GHK-Cu from onedaycompounds.com, performed by Vanguard Laboratory on February 20, 2026. Reported purity: 99.8%. Net content: 49.13 mg against 50 mg labeled (98% of label). Batch OC-GHK50-101. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of GHK-Cu from onedaycompounds.com
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| OC-GHK100-101 | 21 Jun 2026 | ILS Laboratories | 99.96% | 104% | ✓ Lab-verified |
| OC-GHK50-102 | 7 Apr 2026 | Vanguard Laboratory | 99.8% | 95% | Unverified |
| OC-GHK50-103 | 27 Mar 2026 | Vanguard Laboratory | 99.8% | 105% | Unverified |
Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.
Have you tested this peptide?
Submit your third-party lab test to help the community verify purity claims. Every report is reviewed before publication.
Community discussion