Buying research peptides in the UK: what to check

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

1. A batch-specific Certificate of Analysis. Purity (HPLC) and identity (mass spectrometry) for the exact batch you receive. See what is a COA?.
2. Stated purity (99%+). A clear HPLC figure, not a vague "high purity" claim.
3. Cold-chain handling. Peptides labelled with proper storage conditions and dispatched to preserve stability — see storage.
4. UK basis and fast dispatch. A UK supplier means domestic shipping, no customs delays, and GBP pricing.
5. 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.
6. 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?