✓ Purity · pass✓ Lab-verifiedShop-provided sample

GHK-Cu × Crush Research — lab test, June 2026

Name: GHK-Cu Purity Analysis - Crush Research
Creator: ILS Laboratories
Published: 2026-06-09
License: https://creativecommons.org/licenses/by/4.0/

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Tested Tuesday, June 09, 2026 · submitted by @Peptigrity 👑 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

99.57%

✓ Excellent purity only

Counts toward Crush Research's Trust Score until 9 Jun 2028

PeptideGHK-Cu

BrandCrush Research

LabILS Laboratories

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↓ Download COA

Independently confirmed on the lab’s portal✓ Extra check

COA -2026-NBKKUT matches ILS Laboratories's public record. So this test doesn't rest on our review alone — the lab confirms it too.

Lookup codeW287DNAF

Look it up on ILS Laboratories ↗Checked Jun 9, 2026

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Test results

8 data points

Purity

99.57%

Endotoxins

NMT 0.05 EU/mL

Sterility

Not on file

Heavy metals

Not Detected

Stated qty

100 mg

Tested qty

105.94 mg

Qty match

106% of labeled · +6%

Batch / Lot

CR-GHKCU-100-2606-1

COA number

-2026-NBKKUT

Tested by

ILS LaboratoriesView profile →

Not on file for this certificate: sterility. A purity figure says nothing about that.

About this test

What’s in the vial

Label 100 mg · Lab measured 105.94 mg

106% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 26.5 mg using the measured mass, against 25 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 number	-2026-NBKKUT
Portal lookup	✓ Lab-verified
PDF vs portal	ILS Laboratories's portal shows validity only
Submitted via	Peptigrity staff
Weight	Counts as one lab test

Independent HPLC purity analysis of GHK-Cu from Crush Research, performed by ILS Laboratories on June 9, 2026. Reported purity: 99.57%. Net content: 105.94 mg against 100 mg labeled (106% of label). Endotoxins: NMT 0.05 EU/mL. Heavy metals: Not Detected. Batch CR-GHKCU-100-2606-1. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document

Issued by ILS Laboratories · Jun 09, 2026 · Batch CR-GHKCU-100-2606-1

Other lots of GHK-Cu from Crush Research

Lot	Tested	Lab	Purity	vs label	Status
CR-GHK100MG-0828	24 Aug 2026	ILS Laboratories	99.59%	102%	Unverified
CR-GHK50MG-0828	24 Aug 2026	ILS Laboratories	99.81%	107%	Unverified
CR-GHK-100MG-2607-Purple	31 Jul 2026	ILS Laboratories	99.29%	105%	Unverified
CR-GHK-50MG-2606-1	26 Jun 2026	ILS Laboratories	99.75%	105%	Unverified
CRGHK-100-2604-1	22 Apr 2026	ILS Laboratories	99.91%	105%	Unverified
CRKLO-80-2604-1	22 Apr 2026	ILS Laboratories	99.47%	104%	Unverified
CR-GCU100-2603-1	2 Apr 2026	BTLabs	99.7%	113%	Lab has no portal
CR-GHK100-0212-1	16 Feb 2026	Freedom Diagnostics	99.86%	107%	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

5 tests

The 886 other GHK-Cu tests on Peptigrity range from 95.76% to 100.00%. This one sits at 99.57%.

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