✓ Purity · passBatch · HK500917Shop-provided sample
GHK-Cu × utherpeptide.com — Lab Test, September 2025
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
99.934%
✓ Excellent purity only
Independently confirmed on the lab’s portal✓ Extra check
COA #80175 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.
Lookup code
KHQDFI5X8UZJLook it up on Janoshik Labs ↗Checked Sep 25, 2025
Test results
6 data points
Purity
99.934%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
50 mg
Tested qty
54.21 mg
Qty match
108% of labeled · +8%
0label125%
Batch / Lot
HK500917
COA number
#80175
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 utherpeptide.com, performed by Janoshik Labs on September 25, 2025. Reported purity: 99.934%. Net content: 54.21 mg against 50 mg labeled (108% of label). Batch HK500917. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Original document
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