Peptide Purity — 99%+ HPLC-Verified, Third-Party Tested

At AllMyPeptides, purity peptides is not a marketing claim — it is a verifiable standard. Every batch undergoes independent HPLC testing and Mass Spectrometry analysis by third-party UK laboratories. We publish full COA verification data so you can inspect purity, sequence integrity, and endotoxin levels before you buy.

Our HPLC Testing Process

We perform a multi-step analytical protocol on every peptide batch:

  • High-Performance Liquid Chromatography (HPLC) — Measures purity percentage to 99%+
  • Mass Spectrometry (MS) — Confirms correct molecular weight and sequence
  • Endotoxin Testing — Verifies <0.05 EU/mg bacterial contamination
  • Sequence Verification — Confirms amino acid sequence matches specification
  • Appearance Check — Visual inspection for colour, clarity, and consistency

Batch-Matched COA on Every Order

Every order includes a Certificate of Analysis specific to your batch. Our COA Library lets you verify your peptide before it even arrives. Simply enter your lot number to view the full chromatogram, purity data, and testing certificates. Third-party testing means unbiased results you can cite in your research.

Peptide Value Calculator

Use our value calculator to see how HPLC-verified purity reduces your total cost of ownership versus cheaper unverified alternatives.

Why Purity Matters for Research

Impure peptides can compromise your research results, leading to unreliable data and failed experiments. Sub-95% purity introduces unknown variables that invalidate study conclusions. AllMyPeptides guarantees 99%+ purity so your research is built on a foundation of analytical certainty.