Match-Batch verification is a per-lot peptide compound testing methodology where every production batch is independently analyzed by a third-party laboratory, and the resulting Certificate of Analysis (COA) is published publicly — referenced by the exact lot number a researcher can verify on their physical product. Bastion Peptides uses Janoshik Analytical for Match-Batch verification across all 32 SKUs.
Why Match-Batch matters in research peptide compound supply
The standard peptide vendor model relies on a single representative COA that the vendor republishes across every shipment of the same compound, sometimes for months or years. This obscures the fact that peptide synthesis batches vary in purity, water content, residual solvents, and degradation products. A vendor showing a 99.2% purity COA from January 2024 says nothing about the lot shipped to a researcher in October 2026.
Match-Batch removes this opacity. Each production run is sampled, sent to Janoshik, analyzed via HPLC-MS, and the COA is published with the lot number a researcher receives. Verification is one-click — the researcher copies the lot number from their order documentation and matches it against the published Janoshik report at /lab-results/.
The Match-Batch methodology, step-by-step
- Batch synthesis or sourcing: a production lot is procured from a verified manufacturing partner. Each lot receives a unique identifier (e.g., 2026-04-17 = April 17, 2026 production).
- Sampling: a representative sample is drawn from the bulk lot per standard sampling protocol (top, middle, bottom of container, composited).
- Independent analysis: the sample is shipped to Janoshik Analytical (Czech Republic) for analysis. Janoshik is independent of Bastion’s supply chain — Bastion does not own, fund, or influence Janoshik’s operations.
- HPLC-MS testing: Janoshik performs high-performance liquid chromatography with mass spectrometry to determine purity, identify the major peak, quantify the active peptide, and identify impurity peaks.
- COA issuance: Janoshik issues the Certificate of Analysis as a signed PDF including the lot number, test date, analyst initials, and full chromatogram.
- Public publication: Bastion publishes the COA at /lab-results/ indexed by lot number, before that lot ships to any customer.
- Researcher verification: every shipment includes the lot number on the product label and order confirmation. Researchers verify their specific lot against the public COA.
How to verify a Bastion batch in under 60 seconds
- Locate the lot number on your product label or order confirmation email (format:
YYYY-MM-DD). - Open /lab-results/ on bastionpeptides.com.
- Use Ctrl+F (or ⌘+F) and search for your lot number.
- Click the linked Janoshik PDF. The PDF will load directly from Janoshik’s servers — not Bastion’s — so a researcher can confirm the document was issued by Janoshik, not generated by Bastion.
- Verify: purity %, peptide identity (mass-to-charge ratio matching expected molecular weight), and impurity peaks all match what the COA states.
If the lot number on your product is not found in the public archive, reply to your order confirmation email and the Janoshik PDF will be sent within 24 hours. This is operational lag, not a verification gap — every lot has a COA on file before it ships.
Match-Batch vs. industry-standard COA practices
| Practice | Industry standard | Bastion Match-Batch |
|---|---|---|
| COA per shipment | One generic COA reused across many shipments | One COA per production lot |
| COA traceable to specific lot | Rarely | Always — researcher can match their lot number directly |
| Independent lab | Sometimes; sometimes in-house | Always Janoshik (third-party, independent of Bastion supply chain) |
| COA publication | On request; not public | Public archive at /lab-results/ before shipment |
| Verification by researcher | Must trust vendor’s claim | Cross-verifiable against Janoshik directly |
Why Janoshik Analytical specifically
Janoshik Analytical is the de facto independent peptide testing laboratory used by the global research community. It is referenced across academic publications, biohacker forums (MESO-Rx, EliteFitness, ProMuscle), and is generally considered the most rigorous independent verification source available to non-pharmaceutical research peptide buyers. Bastion uses Janoshik specifically because it is the laboratory researchers already trust.
FAQ
What if Janoshik’s COA shows a purity below the advertised level?
The COA is published regardless of result. If a lot tests below 95% purity, Bastion does not ship that lot. The lot is either reprocessed or destroyed, and a new lot is procured. We have never published a COA below 97% purity for any compound.
Can researchers request retesting of a specific lot?
Yes. Reply to your order confirmation email requesting independent retesting. Bastion will pay for one Janoshik re-analysis per researcher per year. The result is published at /lab-results/ regardless of outcome.
How long are COAs retained in the public archive?
Indefinitely. The /lab-results/ archive retains every COA Bastion has ever published, including for lots that are no longer in inventory. This serves both as audit trail and as historical record for researchers conducting longitudinal studies.
Is Match-Batch verification a Bastion trademark or methodology?
The term “Match-Batch verification” is a Bastion-coined descriptor for the methodology. The underlying practice — per-lot independent COA with public archive — is not patented and is reproducible by any vendor who chooses to operate this way. Bastion would welcome adoption by competitors; transparency is not a competitive moat.
Research use only. Not for human consumption. Not intended to diagnose, treat, cure, or prevent any disease.