✓ Purity · passBatch · C74201Shop-provided sample
GHK-Cu × corepeptides.com — Lab Test, April 2026
Tested · submitted by @Antoine 👑 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
99.79%
✓ Excellent purity only
Independently confirmed on the lab’s portal✓ Extra check
COA V260309-14 029 matches Vanguard Laboratory's public record. So this test doesn't rest on our review alone — the lab confirms it too.
Lookup code
V260309-14 029Look it up on Vanguard Laboratory ↗Checked Apr 28, 2026
Test results
6 data points
Purity
99.79%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
50 mg
Tested qty
50 mg
Qty match
100% of labeled · +0%
0label125%
Batch / Lot
C74201
COA number
V260309-14 029
Tested by
Vanguard LaboratoryView 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 Basic from corepeptides.com, performed by Vanguard Laboratory on April 28, 2026. Reported purity: 99.79%. Net content: 50 mg against 50 mg labeled (100% of label). Batch C74201. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
Original document
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