Buy Peptides UK Research-Grade
With Full Traceability
Peptides.net has supplied UK and European researchers with independently verified, high-purity research compounds since 2018. Every peptide we stock is third-party HPLC tested, with a batch-specific Certificate of Analysis available on request, because precision in research starts with what you purchase.
Third-Party Tested
Independent HPLC & mass spec
≥98% Purity
Verified on every batch
Same or Next Business Day Dispatch
Order before 12pm GMT
COA Available
On request
8+
Years supplying UK researchers
75+
Research-grade compounds
≥98%
Minimum purity guarantee
100%
Third-party COA verified
Most Popular Peptides
Our best-selling research compounds, all UK-stocked and ready to dispatch
Sermorelin
Mol. Wt.
3,357.93 g/mol
Purity
≥98%
CAS No.
86168-78-7
Semax
Mol. Wt.
813.92 g/mol
Purity
≥98%
CAS No.
80714-61-0
GHRP-6
Mol. Wt.
873.01 g/mol
Purity
≥98%
CAS No.
87616-84-0
KPV
Mol. Wt.
328.41 g/mol
Purity
≥98%
CAS No.
67727-97-3
Snap-8
Mol. Wt.
1,075.16 g/mol
Purity
≥98%
CAS No.
868844-74-0
Ipamorelin
Mol. Wt.
711.85 g/mol
Purity
≥98%
CAS No.
170851-70-4
BPC-157
Mol. Wt.
1,419.55 g/mol
Purity
≥98%
CAS No.
137525-51-0
IGF-1 LR3
Mol. Wt.
9,117.57 g/mol
Purity
≥98%
CAS No.
946870-92-4
TB-500
Mol. Wt.
4963.4 g/mol
Purity
≥99%
CAS No.
885340-08-9
Epithalon
Mol. Wt.
390.35 g/mol
Purity
≥98%
CAS No.
307297-39-8
Kisspeptin
Mol. Wt.
1,302.44 g/mol
Purity
≥98%
CAS No.
374683-17-7
PT-141 (Bremelanotide)
Mol. Wt.
1,025.17 g/mol
Purity
≥98%
CAS No.
189691-06-3
Why Researchers Choose Peptides.net
Since 2018 we've built our reputation on one principle: supply only what we'd use in our own laboratory. Every compound is independently verified before dispatch.
Independent Lab Testing
Every batch is sent to a third-party laboratory for HPLC purity analysis and mass spectrometry confirmation before it reaches you.
Research-Grade Synthesis
Our peptides are synthesised to the highest research-grade standards, ensuring consistent, reproducible results across your experiments.
Full COA Documentation
Batch-specific Certificates of Analysis are available for every product, on request using your order number or batch lot number.
Reliable UK Stock
With 8 years of supply chain experience, we maintain consistent UK stock levels so your research programme is never interrupted.
Where to Buy Peptides.
Peptides.net is one of the UK's longest-established research peptide suppliers, operating since 2018. When researchers in the UK and Europe want to purchase peptides for in-vitro study, they need a supplier they can trust to deliver consistent purity, full documentation, and reliable stock.
Every compound in our catalogue, from BPC-157 and TB-500 to IGF-1 LR3 and Follistatin 344, each independently tested by a third-party laboratory before dispatch. A batch-specific Certificate of Analysis is available on request, confirming the purity, identity, and molecular weight of your compound.
We stock over 75 research-grade peptides with next-day UK dispatch, cold-chain packaging, and full SDS documentation. Whether you're looking to buy peptides for a single experiment or maintain an ongoing supply for a multi-phase research programme, our team is equipped to support you.
What to look for when purchasing peptides.
Independent third-party testing
A reputable UK peptide supplier will provide HPLC results from an independent laboratory, not just in-house testing.
Batch-specific COA
Generic certificates covering multiple batches are a red flag. Insist on lot-specific documentation matching your order.
UK-held stock
UK-stocked peptides ship faster, avoid customs delays, and are subject to stricter quality handling requirements.
Transparent pricing
Research budgets are finite. We publish clear pricing with no hidden fees. Bulk pricing for multi-vial institutional orders applies automatically at checkout.
Ready to Purchase Peptides?
Join thousands of UK researchers who have trusted Peptides.net since 2018. Create a free account to track orders and request a COA using your order number.