GHK-Cu × Imperial Peptides UK — lab test, May 2026
COA 154281 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
TKXBRL39G2LRTest results
Not on file for this certificate: endotoxins, sterility and heavy metals. A purity figure says nothing about those.
About this test
Label 50 mg · Lab measured 38.92 mg
78% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 9.7 mg using the measured mass, against 12.5 mg on the label — 22% 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.
| Report number | 154281 |
|---|---|
| Portal lookup | ✓ Lab-verified |
| Checked | 28 Jul 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 Imperial Peptides UK, performed by Janoshik Labs on May 20, 2026. Reported purity: 99.563%. Net content: 38.92 mg against 50 mg labeled (78% of label). Tested content is 22% below the labeled amount. Batch GHK50-03/28. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Other lots of GHK-Cu from Imperial Peptides UK
| Lot | Tested | Lab | Purity | vs label | Status |
|---|---|---|---|---|---|
| GHK50-05/28 | 11 Jun 2026 | Janoshik Labs | 99.631% | 117% | ✓ Lab-verified |
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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