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How to Evaluate a Research Peptide Supplier: A 10-Point Checklist

Not every vial is equal. Ten questions to ask before choosing a research peptide supplier.

6 min read
Checklist and certificate of analysis beside research peptide vials for supplier evaluation

Choosing a supplier is a scientific decision. The quality of the reagent sets the ceiling for the quality of the data.

The checklist

  1. Batch-specific Certificate of Analysis available
  2. HPLC purity with chromatogram, not just a number
  3. Mass spectrometry identity confirmation
  4. Clear lot numbers on every vial
  5. Lyophilised, sealed packaging
  6. Documented storage recommendations
  7. Reagent data: CAS, formula, molecular weight
  8. Clear research-use-only positioning without health claims
  9. Responsive technical support
  10. Transparent shipping and return policies

Red flags

  • Therapeutic or consumer claims on product pages
  • No lot numbers or generic CoAs
  • Purity claims without methods
  • Unrealistically low prices for long sequences

Learn how to read the most important document in our HPLC and CoA guide, or browse the Alveon Bio catalogue.

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