We started with one question: why is it so hard to buy a research peptide in the UK with an honest COA?
UK Peptide Labs was founded in 2022 by two synthetic chemists who were tired of re-bottlers, mystery COAs and overseas shipping delays. We do solid-phase synthesis in-house, run our own HPLC, and send every batch to Eurofins for an independent re-test.
Three things we won't compromise on.
Honest COAs
Every batch ships with a Certificate of Analysis. The numbers on the COA match what came off our HPLC and what came back from Eurofins. Always.
Plain language
We sell research peptides for in-vitro laboratory work. We don't make health claims. We share the data and let it speak.
Made in Britain
Solid-phase synthesised, purified, lyophilised, vialled and dispatched from our Manchester facility. No re-bottling. No middlemen.
Dr. Maya Harlow
DPhil Synthetic Chemistry, Univ. of Oxford. Ten years in industrial SPPS at a UK-listed CRO before co-founding UK Peptide Labs.
Dr. Ravi Doshi
PhD Analytical Chemistry, Imperial College. Background in pharmaceutical HPLC method development. Runs our QC lab and supplier audits.

If a batch fails ≥98% HPLC, it never leaves the building.
We retest, recrystallise, or scrap. The vial in your hand has passed three checks — our HPLC, our mass-spec, and a third-party re-test at Eurofins UK. If you ever want to see the data, email lab@ukpeptidelabs.com with your batch number.