Why Independent Testing Matters

The research peptide market has a transparency problem: most products arrive with no verification of what's actually in the vial. Independent third-party testing closes that gap by answering two questions: is this the right compound, and how pure is it?

HPLC — purity

High-Performance Liquid Chromatography separates a sample into its components and measures the proportion attributable to the target peptide. The result is the purity percentage. We treat ≥98% as a pass.

Mass spectrometry — identity

Mass spec measures molecular weight to confirm the compound is what it claims to be. A high purity number means little if the identity is wrong, which is why we require both.

Reading a COA

• Identity: confirmed via mass spec.
• Purity %: the HPLC peak area of the target.
• Batch / lot code: ties the result to a production run.
• Date & lab: when and where it was analyzed.

Every lab-verified order on Peptuvia publishes its result to the product's public quality score — building the largest independent peptide quality database in the US.