All Tirzepatide Certificate of Analysis results— 7380 COAs
TitrateLab · Certificate of Analysis

Tirzepatide 99.9% Purity — Zlz PeptideCertificate of Analysis · Independent third-party lab result

Tested purity 99.9% High purity · 99.931%
Dose vs label +11.8% Over the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

Janoshik tested this tirzepatide from zlzpeptide.com at 99.931% purity. The tested quantity of 134.16mg showed an 11.8% deviation from the 120mg label. Endotoxin status and test method are not specified. The test is recent (3-6 months old), and customers can cross-check on Janoshik's public verification URL.

Watch out for
  • no endotoxin test
  • vague purity language
  • batch ID unknown
Test date
2025-11-20
Testing lab
Janoshik
Batch / lot
Quantity
134.16 mg
label 120mg · tested 134.16 mg
Endotoxins
Assay method
Label dose
120mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.93% ranks higher than 86% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2025-11-20 by Janoshik. This test is newer than 41% of our catalogued Tirzepatide certificates.

Zlz Peptide has 274 certificates in our corpus, including 94 for Tirzepatide at a median tested purity of 99.80%.

Manufacturer
Zlz Peptide
View vendor profile
Peptides on this report
Tirzepatide
Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Janoshik (public)

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.

Verify on the upstream lab
Dose
120mg
Catalogued
2026-04-16
Artifact hash
43bdf030f37db717…
OCR text Raw extracted text

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

{
  "peptide": "Tirzepatide",
  "dose": "120mg",
  "purity_pct": 99.931,
  "purity_label": "99.931%",
  "method": "",
  "test_date": "2025-11-20",
  "client": "ZLZ peptides",
  "notes": "",
  "label_qty": "120mg",
  "tested_qty": "134.16 mg",
  "quantity_deviation_pct": 11.8,
  "is_blend": false,
  "components_json": "",
  "ocr_confidence": 0.98
}
Related

Other Tirzepatide certificates

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