✓ Purity · passBatch · GHK50-03/28Shop-provided sample
GHK-Cu × imperialpeptides.co.uk — Lab Test, May 2026
Tested · submitted by @Frank 👑 Legend
Sample source: shop-provided. The shop chose and sent this vial. Samples bought at retail by a member carry more weight.How we weigh evidence →
HPLC Purity
99.563%
✓ Excellent purity only
Independently confirmed on the lab’s portal✓ Extra check
COA 154281 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
Lookup code
TKXBRL39G2LRLook it up on Janoshik Labs ↗Checked May 20, 2026
Test results
6 data points
Purity
99.563%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
50 mg
Tested qty
38.92 mg
Qty match
78% of labeled · -22%
0label125%
Batch / Lot
GHK50-03/28
COA number
154281
Tested by
Janoshik LabsView profile →
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
Independent HPLC purity analysis of GHK-Cu from imperialpeptides.co.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
Original document
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