First research order — 10% off with code RESEARCH10 · UK next-day dispatch before 2pm
Every batch independently verified

Research-grade peptides.
Verified by data, not claims.

UK-supplied peptides for laboratory research, with HPLC and mass-spectrometry results published for every batch. Type a batch number. See the evidence.

For laboratory research use only. Not for human consumption. · EN-GB

BATCH PL-2025-0342
99.6% purity · Verified
99.4%
Mean batch purity, 2025–26
HPLC + MS on every batch
100%
COAs published & searchable
24h
UK dispatch, tracked
Compound library

Selected research compounds

Lyophilised peptides, batch-coded at source. Specifications and current batch COAs on every product page.

Certificate of Analysis

Verify a batch. Instantly.

Other suppliers make you email and wait. Every Molecula batch is publicly verifiable — enter the batch number printed on the vial.

Try a sample batch:
Batch not found. Check the number printed on your vial label, or contact us.
CERTIFICATE OF ANALYSIS
Verified
Batch №
Purity (HPLC)
Test date
Method
Testing laboratory
Mass (MS) conf.
Download full COA (PDF)
How we test

Three checkpoints between synthesis and your lab

01 / SYNTHESIS

Controlled manufacture

Solid-phase synthesis in an audited partner facility, with in-process controls at each coupling stage and full batch traceability from raw material to vial.

02 / ANALYSIS

HPLC + mass spectrometry

Every batch is analysed by reverse-phase HPLC for purity and by MS for identity confirmation. Batches below 99.0% purity are rejected — not discounted.

03 / DOCUMENTATION

Public COAs, per batch

Results are published to our batch registry before a vial ships. Anyone — customer or not — can look up any batch number at any time.

Common questions

Direct answers, on the record

How is peptide purity verified? +
Every manufactured batch is analysed by high-performance liquid chromatography (HPLC) and mass spectrometry before release. The results — purity percentage, test date, method and laboratory — are published in a Certificate of Analysis, searchable by batch number.
What is a Certificate of Analysis (COA)? +
A COA is a laboratory-issued document recording a specific batch's identity, purity, test date and testing lab. Molecula publishes a COA for every batch we release, and each is verifiable through the batch lookup above.
Are these products for human use? +
No. All products are supplied strictly for in-vitro laboratory research. They are not for human consumption, therapeutic use, or veterinary use, and nothing on this site is medical advice.
How should peptides be stored on receipt? +
Lyophilised peptides should be stored at −20°C, protected from light and moisture. Storage guidance specific to each compound is stated on its product page and COA.
Where do you ship from, and how quickly? +
Orders are dispatched from our UK facility. Orders placed before 2pm ship the same working day with tracked next-day delivery available across the UK.
Research notes

Testing updates and research notes, monthly.

New batch releases, methodology notes, and updates to our testing programme. No marketing noise.

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Research assistant
Product & batch questions · typically replies in seconds
Hello — I can answer questions about compounds, batch COAs, storage and shipping. What would you like to know?
Research information only — not medical advice.