All Retatrutide Certificate of Analysis results(10,468 COAs)
TitrateLab · Certificate of Analysis

Retatrutide 99.7% Purity — GYCCertificate of Analysis · Independent third-party lab result

Tested purity 99.7% High purity · 99.696%; 99.876%.
Dose vs label +12.1% Over the labeled dose
Evidence Artifact captured
Test date
2026-05-25
Testing lab
Janoshik
Batch / lot
[PHONE_REDACTED]
Quantity
56.04mg
label 50mg · tested 56.04mg
Endotoxins
Assay method
Context

How this result compares

This Retatrutide certificate's tested purity of 99.70% ranks higher than 27% of the 10463 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2026-05-25 by Janoshik. This test is newer than 76% of our catalogued Retatrutide certificates.

GYC has 284 certificates in our corpus, including 78 for Retatrutide at a median tested purity of 99.73%.

Manufacturer
GYC
View vendor profile
Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Community submission

Artifact captured

Submitted by distilled-oryx-12 +626

We have the certificate image — you can verify it loads from the upstream lab and matches the artifact shown here.

Catalogued
2026-07-26
OCR text Raw extracted text

Extracted via OCR. Names, emails, phone numbers, and street addresses are auto-redacted before display.

TEST REPORT
JANOSHIK
E-mail: [EMAIL_REDACTED]
Web: www.janoshik.com
Task Number #166090
Testing ordered > 20 MAY '26
Sample received > 21 MAY '26
Client G
Sample RT-50(Green cap)
[NAME_REDACTED] [PHONE_REDACTED]
Sample description >
See picture or pictures attached.
Tests requested >
[NAME_REDACTED] peptide blind test (Semaglutide, Tirzepatide and Retatrutide)
Results >
Retatrutide 56.04 mg; 54.18 mg.
Purity 99.696%; 99.876%.
Comments >
Analysis conducted > 25 MAY 2026
Signature >
Verify this test at www.janoshik.com/verify/ with the following unique key
2NT1TY6AGX3C
Related

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This certificate is part of TitrateLab's community-trust corpus. See more from GYC or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →