✓ Purity · passShop-provided sample

GHK-Cu × Crush Research — lab test, lot CRGHK-100-2604-1, April 2026

Name: GHK-Cu Purity Analysis - Crush Research
Creator: ILS Laboratories
Published: 2026-04-22
License: https://creativecommons.org/licenses/by/4.0/

Sample label: Crush Research Supply

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Tested Wednesday, April 22, 2026 · submitted by Peptigrity Team Member 02PEPTIGRITY TEAM

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

99.91%

✓ Excellent purity only

Counts toward Crush Research's Trust Score until 22 Apr 2028

PeptideGHK-Cu

BrandCrush Research

LabILS Laboratories

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Test results

8 data points

Purity

99.91%

Endotoxins

NMT 0.05 EU/mL

Sterility

Not on file

Heavy metals

Not tested

Stated qty

100 mg

Tested qty

104.91 mg

Qty match

105% of labeled · +5%

Batch / Lot

CRGHK-100-2604-1

Container

Gray cap vial with white label (Crush Research Supply branded)

Tested by

ILS LaboratoriesView profile →

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

About this test

What’s in the vial

Label 100 mg · Lab measured 104.91 mg

105% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 26.2 mg using the measured mass, against 25 mg on the label — 5% 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.

Independent HPLC purity analysis of GHK-Cu from Crush Research, performed by ILS Laboratories on April 22, 2026. Reported purity: 99.91%. Net content: 104.91 mg against 100 mg labeled (105% of label). Endotoxins: NMT 0.05 EU/mL. Batch CRGHK-100-2604-1. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document

Issued by ILS Laboratories · Apr 22, 2026 · Batch CRGHK-100-2604-1

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
CR-GHKCU-100-2606-1	9 Jun 2026	ILS Laboratories	99.57%	106%	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

8 tests

The 886 other GHK-Cu tests on Peptigrity range from 95.76% to 100.00%. This one sits at 99.91%.

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