All Retatrutide Certificate of Analysis results— 9827 COAs
TitrateLab · Certificate of Analysis

Retatrutide 99.4% Purity — CathyCertificate of Analysis · Independent third-party lab result

Tested purity 99.4% High purity · 99.445%
Dose vs label +6.3% Over the labeled dose
Evidence Artifact captured Trust: low
AI summary Forum scrape

This COA was extracted from a community forum attachment. The original poster claimed a lab tested Cathy's retatrutide, reporting 99.445% purity and a 6.35% quantity overage (21.27mg tested vs 20mg label). However, the lab's signature is not directly verifiable from this source, and the test is stale (over a year old). This should be treated as community signal, not confirmation.

Watch out for
  • chain-of-custody gap
  • stale (1+ years old)
  • no endotoxin test
Test date
2025-04-28
Testing lab
Unknown
Batch / lot
Quantity
21.27 mg
label 20mg · tested 21.27 mg
Endotoxins
Assay method
Label dose
20mg
Context

How this result compares

This Retatrutide certificate's tested purity of 99.44% ranks higher than 13% of the 9822 Retatrutide certificates with a purity result we have catalogued (median 99.83%).

Tested 2025-04-28 by Unknown. This test is newer than 4% of our catalogued Retatrutide certificates.

Cathy has 16 certificates in our corpus, including 5 for Retatrutide at a median tested purity of 99.28%.

Manufacturer
Cathy
View vendor profile
Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Forum / Discord scrape

Artifact captured

We have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.

Dose
20mg
Catalogued
2026-05-08
Artifact hash
f7802f4eda360ebc…
OCR text Raw extracted text

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

{
  "peptide": "Retatrutide",
  "dose": "20mg",
  "purity_pct": 99.445,
  "purity_label": "99.445%",
  "method": "",
  "test_date": "2025-04-28",
  "client": "Cathy",
  "notes": "",
  "label_qty": "20mg",
  "tested_qty": "21.27 mg",
  "quantity_deviation_pct": 6.35,
  "is_blend": false,
  "components_json": "",
  "ocr_confidence": 1.0
}
Related

Other Retatrutide certificates

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