Test results

Check your
batch here

Type in the batch number from your pen's label to see its certificate: how pure it is (HPLC) and confirmation it's the right compound (mass spectrometry).

Certificates of Analysis for research peptides – Thepenpeptide UK
HPLC & MSVerified
Research GradeQuality
BatchTraceability
FullTransparency
ProductSKUPurityDocument

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How a batch gets here

Tested, approved, then filled into pens.

1. Synthesis Partner
2. HPLC & MS Testing
3. Identity & Purity Check
4. CoA Published

Analytical Methods

We use HPLC for purity and mass spectrometry for identity, combining the maker's lab data with our own checks on each batch.

HPLCMS / LC-MS

Have Questions About a Certificate?

Our team is here to help. Get in touch for any COA requests or additional information.

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FAQs

Frequently Asked Questions

It's printed on the label of your pen. Type it into the search on this page exactly as it appears.