Public COA audit
Retatrutide
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)
- 99.84%
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
- sj5jsy6
- Identity method
- HPLC-UV-MS
- Sample date
- 2026-02-06
- Issue date
- 2026-02-22
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).
ID Confirmed
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.84%
Heavy metals
Tested · passed
Lead, arsenic, cadmium, mercury, or similar limits.
As: 0.29 µg, Cd: 0.044 µg, Pb: 0.40 µg, Hg: ND
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.
1.1 EU
Sterility
Not on this certificate file
Sterility testing where applicable.
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.”
Residual solvent / water
Tested · passed
Residual solvents or water content limits.
All solvents ND (not detected)
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 chromatographic purity
99.84% purity by HPLC-UV/MS is excellent and typical for research-grade peptides
Identity confirmed
Mass spectrum matched authentic Retatrutide standard; CAS 2381089-83-2 provided
Batch/lot number present
Lot sj5jsy6 clearly stated; Lab # 200863; Project 145051
Dates are valid
Sample received 2026-02-06, report issued 2026-02-22, all test dates between 2026-02-12 and 2026-02-16
Reputable testing lab
Krause Analytical LLC is a known third-party analytical lab in Austin, TX; verification URL provided
Comprehensive testing
Includes purity, identity, endotoxin, heavy metals (FDA critical 4), and extensive residual solvents panel (USP 467)
Microbial and sterility panels absent
No microbial contamination (TAMC/TYMC) or sterility testing reported; common for research-grade peptides but worth noting
Professional presentation
Multi-page report with chromatogram, mass spectrum, methods summary, director signature, and watermarking consistent with Krause Analytical format
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.