✓ Purity · passShop-provided sample

GHK-Cu × Petratide Science — lab test, April 2026

Name: GHK-Cu Purity Analysis - Petratide Science
Creator: Freedom Diagnostics
Published: 2026-04-23
License: https://creativecommons.org/licenses/by/4.0/

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Tested Thursday, April 23, 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 Petratide Science's Trust Score until 23 Apr 2028

PeptideGHK-Cu

BrandPetratide Science

LabFreedom Diagnostics

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Independent verification available

Freedom Diagnostics publishes a public verification portal. Any test attributed to this lab can be looked up and confirmed directly with the lab — so this result doesn't rest on our review alone.

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All 866 GHK-Cu lab tests →GHK-Cu prices Check another lot

Test results

7 data points

Purity

99.91%

Endotoxins

Not tested

Sterility

Not on file

Heavy metals

Not tested

Stated qty

100 mg

Tested qty

96.14 mg

Qty match

96% of labeled · -4%

Batch / Lot

PS04-CU100

Container

Blue Lyophilized Powder

Tested by

Freedom DiagnosticsView 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 100 mg · Lab measured 96.14 mg

96% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 24 mg using the measured mass, against 25 mg on the label — 4% less.

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 Petratide Science, performed by Freedom Diagnostics on April 23, 2026. Reported purity: 99.91%. Net content: 96.14 mg against 100 mg labeled (96% of label). Batch PS04-CU100. Sample source: shop-provided. Certificate of analysis attached.

Certificate of analysis

Original document

Issued by Freedom Diagnostics · Apr 23, 2026 · Batch PS04-CU100

Other lots of GHK-Cu from Petratide Science

Lot	Tested	Lab	Purity	vs label	Status
PS05-CUKV60	30 May 2026	Freedom Diagnostics	99.68%	129%	Unverified
PS04-GHK02-B	23 Apr 2026	Freedom Diagnostics	99.92%	98%	Unverified
PS03-GL70	3 Apr 2026	Freedom Diagnostics	99.688%	98%	Unverified
PS03-CU02-P	15 Mar 2026	Freedom Diagnostics	99.455%	95%	Unverified
PS03-KL01-W	15 Mar 2026	Freedom Diagnostics	99.74%	95%	Unverified
PS02-K50	12 Feb 2026	Freedom Diagnostics	99.887%	111%	Unverified
PS02-GC100	1 Feb 2026	Freedom Diagnostics	99.441%	85%	Unverified
PS02-GK	1 Feb 2026	Freedom Diagnostics	99.339%	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

7 tests

The 864 other GHK-Cu tests on Peptigrity range from 95.76% to 100.00%. This one sits at 99.91%.

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