Guide to Canadian research peptide standards
Researchers in Canada have more peptide suppliers to choose from than ever, but quality varies a lot. This guide explains what separates a reliable reference standard from an unverified one, and what to ask any supplier before ordering.
1. Purity should be measured, not claimed
High-performance liquid chromatography (HPLC) is the standard method for measuring peptide purity. A sample is separated into its components, and the main peak is compared with any impurities. A result of 99% or higher means less than 1% of the material is something other than the target peptide.
The key word is independent. A purity figure produced by the seller itself carries far less weight than one produced by a third-party laboratory with no stake in the result.
2. Every batch needs its own Certificate of Analysis
A Certificate of Analysis (COA) records the test results for one specific production batch. A generic COA reused across years of production says little about the vial in front of you.
- The peptide name and the batch or lot number
- The testing laboratory and the test date
- The HPLC purity result, ideally with the chromatogram
- Identity confirmation, often by mass spectrometry
3. Lot traceability
Each vial should carry a lot number that links back to its COA. If a question ever comes up about a result, traceability lets you confirm exactly which batch the material came from.
4. Format and storage
Most research peptides are supplied lyophilised (freeze-dried) in sealed glass vials. In this form they stay stable much longer than in solution. Keep them cold, dry and away from light, and check that vials arrive sealed and intact.
5. Why domestic supply matters in Canada
Orders shipped from outside Canada must clear customs. Packages can sit at the border for days or weeks, be returned, or be seized, and long transit times expose material to heat and handling.
A Canada-based supplier ships domestically with tracking, so there is no border crossing, no customs hold and much shorter time in transit.
6. A quick supplier checklist
- Is purity tested by an independent laboratory, batch by batch?
- Can you get a COA for the exact lot you receive?
- Is every vial lot-numbered?
- Does the supplier ship from inside Canada?
- Is the product clearly sold for laboratory research only?
How Active Bio Labs meets these standards
Active Bio Labs is a Canada-based supplier. Every batch is HPLC-tested at 99%+ purity by an independent Canadian laboratory, every vial carries a lot number linked to its Certificate of Analysis, and all orders ship within Canada with tracking. Payment is by Interac e-Transfer or cryptocurrency.
All products are sold strictly for in-vitro laboratory research and are not for human or animal use.