GHK-Cu × polarispeptides.com — lab test, February 2026
COA #111548 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
FGRHM9JYBJRLTest 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 66.84 mg
134% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 16.7 mg using the measured mass, against 12.5 mg on the label — 34% more.
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.
| Report number | #111548 |
|---|---|
| Portal lookup | ✓ Lab-verified |
| Checked | 4 Aug 2026date taken from the record, not from a logged check |
| Checked by | Peptigrity staff, against the lab's portal |
| PDF vs portal | Janoshik Labs's portal shows validity only |
| Weight | Counts as one lab test |
Independent HPLC purity analysis of GHK-Cu from polarispeptides.com, performed by Janoshik Labs on February 27, 2026. Reported purity: 99.87%. Net content: 66.84 mg against 50 mg labeled (134% of label). Tested content exceeds the labeled amount by 34%. Batch POL-GH50-6. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of GHK-Cu from polarispeptides.com
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| POL-GB100-2 | 8 Jan 2026 | Chromate | 99.87% | 102% | ✓ Lab-verified |
| POL-AHK10 | 3 Nov 2024 | Chromate | 98.706% | 104% | Unverified |
| POL-GB100-1 | 12 Jun 2024 | Janoshik Labs | 99.773% | 85% | Unverified |
Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.
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