All P-21 Certificate of Analysis results— 9 COAs
TitrateLab · Certificate of Analysis
Tested vendor:Uther Peptide All P-21 results & stats

P-21 99.0% Purity — Uther PeptideCertificate of Analysis · Independent third-party lab result

Tested purity 99.0% High purity · 99.003%
Dose vs label +25.0% Over the labeled dose
Evidence Artifact captured
Test date
2026-05-28
Testing lab
Janoshik
Batch / lot
—
Quantity
12.50 mg
label 10mg · tested 12.50 mg
Endotoxins
—
Assay method
—
Label dose
10mg
Context

How this result compares

This P-21 certificate's tested purity of 99.00% ranks higher than 31% of the 8 P-21 certificates with a purity result we have catalogued (median 99.16%).

Tested 2026-05-28 by Janoshik. This is the most recent P-21 certificate on file.

Uther Peptide has 524 certificates in our corpus, including 1 for P-21 at a median tested purity of 99.00%.

Manufacturer
Uther Peptide
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Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Janoshik (public)

Artifact captured

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Dose
10mg
Catalogued
2026-07-11
OCR text Raw extracted text

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

{
  "peptide": "P-21",
  "dose": "10mg",
  "purity_pct": 99.003,
  "purity_label": "99.003%",
  "method": "",
  "test_date": "2026-05-28",
  "client": "utherpeptide.com",
  "notes": "",
  "label_qty": "10mg",
  "tested_qty": "12.50 mg",
  "quantity_deviation_pct": 25.0,
  "is_blend": false,
  "components_json": "",
  "ocr_confidence": 1.0
}
Related

Other P-21 certificates

ELJ P-21
98.0% 2026-05-11
Freedom Diagnostics Uther Thailand P-21
99.4% 2026-02-11
Janoshik Qingdao Sigma Chemical P-21
99.2% 2026-01-19
Janoshik Qingdao Sigma Chemical P-21
99.2% 2026-01-19
Janoshik Verified Peptides P-21
99.4% 2025-10-27
Janoshik PTDS P-21
— 2024-08-28
Janoshik Qingdao Sigma Chemical P-21
99.8% 2024-10-10
Janoshik Qingdao Sigma Chemical P-21
97.7% 2024-09-03
Janoshik
All P-21 results & stats
This certificate is part of TitrateLab's community-trust corpus. See more from Uther Peptide or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →