Public COA audit
LL-37
Audited July 28, 2026
Several fields check out, but we found issues worth reviewing before you rely on this document.
- Legitimacy
- 88
- Confidence
- 92%
- Panels
- 2/7
- Purity (printed)
- 99.94%
Document details
Fields extracted from the certificate — not order or payment data.
- Identity method
- LC-MS with UV detection
- Sample date
- 2025-03-20
- Issue date
- 2025-03-28
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.
2 of 7 present · 2 passed · 0 failed · 0 reported · 5 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).
LL-37
Purity
Tested · passed · core
Reported purity percentage for the analyte.
99.94%
Heavy metals
Not on this COA
Lead, arsenic, cadmium, mercury, or similar limits.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Microbial
Not on this COA
Bioburden / microbial limits testing.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Endotoxin
Not on this COA · core
LAL or chromogenic endotoxin assay.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Sterility
Not on this COA
Sterility testing where applicable.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
Residual solvent / water
Not on this COA
Residual solvents or water content limits.
No evidence for this panel. That lowers thoroughness — whether it matters depends on what you care about.
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
Not on this certificate. Lowers thoroughness; you decide if that panel matters for your use case. PeptIQ’s score still factors coverage.
Findings
Evidence-linked observations from this audit.
High purity confirmed
99.94% purity by LC-MS exceeds specification of >98%, consistent with high-quality peptide synthesis
Identity confirmed
Compound identity verified as LL-37 by LC-MS with matching CAS 154947-66-7 and molecular formula C205H340N60O53
Batch/Lot number missing
No batch or lot number visible in the Batch/Lot # field, which is important for traceability
Dates are reasonable
Sample received 2025-03-20, analysis conducted 2025-03-28 (8-day turnaround)
Lab information present
BioRegen lab with analyst signature (Dr. Roberto Marin), verification URL, and security key provided
Limited testing scope
Only identity and purity panels performed; no heavy metals, microbial, endotoxin, sterility, or residual solvent testing
Professional presentation
Document includes chromatograms, mass spectrum data, QR code for verification, and professional formatting
Timing & next steps
Practical follow-ups based on document age and gaps.
coa age
This COA was issued over a year ago (487 days) — consider whether a retest is warranted for this batch.
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.