Peptide Testing at Medtruva

We don’t sell what we haven’t verified. Medtruva works directly with vetted suppliers, then tests every peptide two separate times: once at the supplier’s facility and again through our own independent third-party testing. Each peptide comes with a Certificate of Analysis, so you can check the result yourself.
From supplier to your lab, verified at every step
No guesswork and no unverified claims. Here is how every peptide earns a place in the Medtruva research peptide catalog.
Why we use HPLC
High-performance liquid chromatography (HPLC) separates a sample into its individual components and measures each one. The output is a chromatogram: one dominant peak means the sample is mostly the target peptide, while smaller peaks reveal impurities.
It is the gold-standard method for peptide purity, which is why it is the method we rely on.
- Reports purity as a clear percentage
- Separates and detects impurities
- Repeatable from lot to lot

A Certificate of Analysis with every peptide
A COA is the laboratory’s written record of what was tested and what it found. Ours is there so you never have to take our word for it.
Common questions about peptide testing
What does HPLC testing measure?
HPLC (high-performance liquid chromatography) separates a peptide sample into its individual components and measures each one. The result is a purity percentage and a chromatogram showing the main peak and any impurities.
How many times is each peptide tested?
Every peptide is tested twice: once at the supplier’s facility and once through our own independent third-party testing.
What is a Certificate of Analysis (COA)?
A COA is the laboratory’s written record of what was tested and what it found, including the HPLC purity result for that peptide.
Does every peptide come with a COA?
Yes. Every peptide comes with its Certificate of Analysis. If you have a question about a specific lot, contact us and we will help.
Learn more: About Medtruva · General FAQ · Research peptide catalog
Verify it for yourself
Browse the catalog and review the certificate for any peptide. Questions about testing or a specific lot? We are happy to help.
Explore the catalogContact usMedtruva products are sold for laboratory research use only. Not for human or veterinary consumption.
