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Independent GLP-1 Testing · Elyria, Ohio

Retatrutide, tested by an independent U.S. lab.

Identity and purity analysis for retatrutide research material, run in-house at our Elyria, Ohio lab, reviewed by a second analyst, and delivered as a signed Certificate of Analysis. No outsourcing. No overseas samples. No conflicts of interest.

$195.00 per sample · signed COA
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How a sample becomes
a certificate.

Every retatrutide sample moves through the same five steps. No shortcuts for rush orders. No unnamed hands in the middle.

Intake.

Your sample arrives. We photograph it, weigh it, log every detail, and assign a tracking number that follows it onto every page.

Prep.

A named analyst prepares the run: dissolutions, dilutions, internal standards. Their initials go in the log.

Run.

HPLC-UV for purity and LC-MS for identity, with system-suitability standards bracketing your sample on either side.

Review.

A second analyst reviews the chromatogram independently. Nothing ships with one set of eyes on it.

Sign.

The COA is digitally signed, hashed, and published. Anyone with the link can verify the signature against the raw data.

What you receive

Paper you can stake a reputation on.

01

A signed Certificate of Analysis

Identity, purity, and intact mass on one document, signed by the director, not a template stamp.

02

Method-level transparency

Column, wavelength, ionization mode, and acceptance criteria are stated, not implied.

03

Public verification

Each COA carries a hash and signature anyone can check at our verify endpoint, on or off our site.

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Frequently asked

Retatrutide testing, answered.

Does ECA test retatrutide samples?+
Yes. Erie Coast Analytical accepts retatrutide research samples through the catalog and returns analytical documentation once testing is complete. Identity is confirmed by mass spectrometry and purity is assessed by HPLC-UV.
Is retatrutide testing performed in the United States?+
Yes. All analysis is performed in-house at our laboratory in Elyria, Ohio. We are an independent U.S. lab. We don't outsource testing or ship samples overseas, and every result is produced and signed by our own analysts.
What does the retatrutide Certificate of Analysis include?+
A completed retatrutide COA documents the compound identity (intact mass by LC-MS), the HPLC-UV purity result as percent area, the method parameters used, and the analyst and director who signed off. It is digitally signed and independently verifiable.
How long does retatrutide testing take?+
Typical turnaround is 1-2 days from the day your sample is received at the lab. You'll get shipping instructions, a packing slip, and labels after checkout.
What method is used to confirm retatrutide identity and purity?+
Identity is confirmed by LC-MS intact-mass analysis. Purity is measured by reversed-phase HPLC-UV and reported as percent area.
Is this medical or dosing advice?+
No. ECA provides analytical testing for research compounds only. We do not provide medical advice, dosing guidance, treatment claims, or clinical evaluation of any kind.
Erie Coast Analytical provides analytical testing services for research compounds and does not provide medical advice, dosing guidance, treatment claims, or clinical evaluation. The interactive catalog remains the source of truth for current availability, checkout pricing, and add-on testing panels.