Buying research peptides in the UK: what to check
5 min read · Updated May 2026 · MY PEPTIDES Research Team
Key facts
Choosing a research-peptide supplier in the UK comes down to whether you can trust what is in the vial, and a short checklist separates a rigorous supplier from a risky one. Look first for a batch-specific Certificate of Analysis confirming purity by HPLC and identity by mass spectrometry for the exact batch you receive, alongside a clear stated purity figure of 99%+ rather than a vague high-purity claim. Confirm cold-chain handling, with peptides labelled for proper storage and dispatched to preserve stability, and favour a UK basis, which means domestic shipping, no customs delays and GBP pricing. A legitimate supplier frames products clearly as for in-vitro laboratory research only, does not advise on human or animal use, and is transparent — real company details, contactable support, and documentation available on request. MY PEPTIDES is UK-based, ships every order with a COA, and verifies 99%+ purity by HPLC and mass spectrometry. All products are supplied for in-vitro laboratory research use only.
Choosing a research-peptide supplier in the UK comes down to one question: can you trust what is in the vial? The checklist below is what separates a rigorous supplier from a risky one.
Research use only. Everything below concerns sourcing materials for in-vitro laboratory research. It does not concern, and must not be read as guidance on, human or animal use.
The checklist
- A batch-specific Certificate of Analysis. Purity (HPLC) and identity (mass spectrometry) for the exact batch you receive. See what is a COA?.
- Stated purity (99%+). A clear HPLC figure, not a vague "high purity" claim.
- Cold-chain handling. Peptides labelled with proper storage conditions and dispatched to preserve stability — see storage.
- UK basis and fast dispatch. A UK supplier means domestic shipping, no customs delays, and GBP pricing.
- Clear research-use framing. A legitimate supplier states products are for in-vitro laboratory research only and does not advise on human or animal use.
- Transparency. Real company details, contactable support, and documentation available on request.
Why UK-based matters
A domestic supplier shortens the cold chain, removes import friction, and keeps pricing in GBP. MY PEPTIDES is UK-based, ships every order with a Certificate of Analysis, and verifies 99%+ purity by HPLC and mass spectrometry.
Where to start
- Browse the full catalogue.
- Popular research compounds: NAD+, CJC-1295, BPC-157 and the Glow Stack.
- New to peptides? Start with what are research peptides?
NAD+ Kit
Available now from MY PEPTIDES — 99%+ purity, COA with every order, fast UK dispatch.
Frequently asked questions
- What should I check when buying research peptides in the UK?
- A batch-specific Certificate of Analysis, a clear HPLC purity figure (99%+), proper cold-chain storage labelling, UK dispatch, and a supplier that frames products as for in-vitro research use only.