✓ Purity · pass✓ Lab-verifiedShop-provided sample

GHK-Cu × PSL Labs — lab test, September 2026

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Tested · submitted by @PSLLabs 💬 Contributor
Sample source: shop-provided. The shop chose and sent this vial. The Trust Score counts it like any other published test; who sourced the vial is shown so you can weigh it yourself.How we weigh evidence →
HPLC Purity
99.735%
✓ Excellent purity only
PeptideGHK-Cu
See PSL Labs reviews & all 3 lab tests
↓ Download COA
Independently confirmed on the lab’s portal✓ Extra check

COA 226454 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.

Lookup code49HEMN9R3NZ5

Test results

6 data points
Purity
99.735%
Endotoxins
Not tested
Heavy metals
Not tested
Stated qty
50 mg
Tested qty
53.21 mg
Qty match
106% of labeled · +6%
Batch / Lot
PSL-GHKCU-50MG
COA number
226454
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

What’s in the vial

Label 50 mg · Lab measured 53.21 mg

106% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 13.3 mg using the measured mass, against 12.5 mg on the label — 6% 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.

Verification trail
Report number226454
Portal lookup✓ Lab-verified
PDF vs portalJanoshik Labs's portal shows validity only
WeightCounts as one lab test

Independent HPLC purity analysis of GHK-Cu from PSL Labs, performed by Janoshik Labs on September 3, 2026. Reported purity: 99.735%. Net content: 53.21 mg against 50 mg labeled (106% of label). Batch PSL-GHKCU-50MG. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Issued by Janoshik Labs · Sep 03, 2026 · Batch PSL-GHKCU-50MG

Related lab tests

6 tests

The 831 other GHK-Cu tests on Peptigrity range from 95.76% to 100.00%. This one sits at 99.73%.

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