Public COA audit
MTS-31 · SS-31
Audited September 5, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 92
- Confidence
- 93%
- Panels
- 5/7
- Purity (printed)
- 99.61%
Scored high because the document is mostly consistent but carries soft concerns, broad panel coverage (5/7), and 1 soft concern.
Document details
Fields extracted from the certificate — not order or payment data.
- Batch / lot
- CR-MTS31-10MG-2607-Black
- Identity method
- HPLC-RTM (retention time match)
- Sample date
- 2026-07-19
- Issue date
- 2026-07-31
Original certificate
Embedded copy of the stored COA PDF or image. Download it for your records — PeptIQ’s audit is separate from the lab document itself.
7-panel checklist
Had data + good, had data + bad, reported without pass/fail, or missing. Missing lowers thoroughness — you decide whether that panel matters; PeptIQ’s score still factors coverage.
5 of 7 present · 5 passed · 0 failed · 0 reported · 2 missing
Missing is a thoroughness gap — not automatically bad. PeptIQ’s legitimacy score still weighs panel coverage; you can down-weight panels that don’t matter for your use case.
Identity
Tested · passed · core
Compound identity confirmed (e.g. HPLC, mass spec).
Confirmed (SS-31)
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.61%
Heavy metals
Tested · passed
Lead, arsenic, cadmium, mercury, or similar limits.
As: 0.6662 ppm, Cd: 0.2141 ppm, Pb: 0.6611 ppm, Hg: 0.521 ppm, Cr: 5.62 ppm
Microbial
Not on this certificate file
Bioburden / microbial limits testing.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
Endotoxin
Tested · passed · core
LAL or chromogenic endotoxin assay.
0.094 EU/mL
Sterility
Tested · passed
Sterility testing where applicable.
No Growth
Residual solvent / water
Not on this certificate file
Residual solvents or water content limits.
No evidence on this file. Vendors sometimes publish separate purity and endotoxin reports for the same lot — check the brand page before treating this as “never tested.”
How to read this
Had data · good
Panel present with a pass (or clear acceptance).
Had data · bad
Panel present with a fail — a concrete quality signal.
Had data · unclear
Value reported without an explicit pass/fail mark.
Missing on this file
Not on this certificate file. Lowers file thoroughness; a sibling endotoxin/purity report for the same lot may still exist. PeptIQ’s score still factors coverage.
Findings
Evidence-linked observations from this audit.
High purity confirmed
99.61% purity by HPLC with conformity testing across 3 samples (mean 99.52%, std dev 0.1087%) demonstrates excellent batch consistency
Identity confirmed
MTS-31 (SS-31) confirmed by HPLC retention time match with reference standard; includes fentanyl screen (not detected)
Batch information complete
Lot CR-MTS31-10MG-2607-Black, COA-2026-954683, Accession ACC-2026-11193, labeled 10mg with net peptide content 10.48mg
Timeline appropriate
Received 2026-07-19, analyzed and issued 2026-07-31 (12-day turnaround)
Lab credentials present
ILS Laboratories, San Diego CA, ISO/IEC 17025 accredited, signed by Dr. Greg Kalyuzhny (Lab Director), includes verification URL and QR code with access code KZ6QYJ94
Comprehensive testing panel
Five panels present: purity/identity (HPLC), heavy metals (ICP-MS), sterility (PCR), endotoxin (USP <85>). Missing: microbial count, residual solvents/water content
Microbial panel absent
No microbial enumeration (TAMC/TYMC) testing shown; sterility (PCR) present but does not replace quantitative microbial count
Professional presentation
Well-formatted 2-page report with chromatogram, conformity data table, detailed methodology notes, and clear pass/fail indicators
PeptIQ COA reports analyze document content and publicly verifiable lab signals. They are educational and not a guarantee of product quality, legality, or safety. Always consult a qualified professional before making health decisions. We never publish purchase prices, shipping details, or uploader identity.