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✓ Purity · pass✓ Lab-verifiedShop-provided sample

GHK-Cu × Uther — lab test, lot HK50-0312, March 2026

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Tested · submitted by @uther 👑 Legend
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
99.835%
✓ Excellent purity only
PeptideGHK-Cu
BrandUther
LabJanoshik Labs
See Uther reviews & all 146 lab tests
↓ Download COA
Independently confirmed on the lab’s portal✓ Extra check

COA 124997 matches Janoshik Labs's public record. So this test doesn't rest on our review alone — the lab confirms it too.

Lookup code7GD8BVSPZIQ6
Look it up on Janoshik Labs ↗Checked Mar 27, 2026
All 867 GHK-Cu lab tests →GHK-Cu pricesCheck another lot

Test results

6 data points
Purity
99.835%
Endotoxins
Not tested
Sterility
Not on file
Heavy metals
Not tested
Stated qty
50 mg
Tested qty
61.87 mg
Qty match
124% of labeled · +24%
Batch / Lot
HK50-0312
COA number
124997
Tested by
Janoshik LabsView profile →

Not on file for this certificate: endotoxins, sterility and heavy metals. A purity figure says nothing about those.

About this test

What’s in the vial

Label 50 mg · Lab measured 61.87 mg

124% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 15.5 mg using the measured mass, against 12.5 mg on the label — 24% 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 number124997
Portal lookup✓ Lab-verified
PDF vs portalJanoshik Labs's portal shows validity only
Submitted viaShop panel (bulk upload)
WeightCounts as one lab test

Independent HPLC purity analysis of GHK-Cu from Uther, performed by Janoshik Labs on March 27, 2026. Reported purity: 99.835%. Net content: 61.87 mg against 50 mg labeled (124% of label). Tested content exceeds the labeled amount by 24%. Batch HK50-0312. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document
Certificate of analysis for GHK-Cu from Uther, issued by Janoshik Labs — Purity (HPLC)
↗ View full-size↓ Download COA
Issued by Janoshik Labs · Mar 27, 2026 · Batch HK50-0312

Other lots of GHK-Cu from Uther

LotTestedLabPurityvs labelStatus
HK100-052310 Jun 2026Uzorak99.68%127%Unverified
HK100-05172 Jun 2026Uzorak99.87%122%Unverified
HK50-05172 Jun 2026Uzorak99.63%115%Unverified
HK100-030210 Apr 2026Janoshik Labs99.757%117%Unverified
HK50-032410 Apr 2026Janoshik Labs99.766%121%Unverified
HK100-03229 Apr 2026Janoshik Labs99.773%117%Unverified
HK50-030418 Mar 2026Janoshik Labs99.78%120%Unverified
HK100-030818 Mar 2026Janoshik Labs99.72%118%Unverified

Batches this shop has published a certificate for, newest first. A lot whose printed value cannot identify a batch is not listed.

Related lab tests

6 tests

The 865 other GHK-Cu tests on Peptigrity range from 95.76% to 100.00%. This one sits at 99.83%.

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