Free UK shipping over £200 Independently HPLC-tested to ≥99% CoA with every batch
Peptides Online UK
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A documentation-first peptide partner

We are a UK research-peptide supplier built around one idea: every vial should arrive with the proof to back it - high-purity compounds, batch-specific Certificates of Analysis, and quiet, reliable delivery.

Who we are

More than a supplier

The pace of scientific advancement uncovered a need for high-end, research-use-only peptide solutions. Since our establishment we have combined rigorous integrity and scientific focus with service-centric values - to become a fully dedicated partner within the research community.

We build scientific research partnerships through research-material supply from the UK, a jurisdiction whose clear laws and regulations let us properly control the compounds needed for further research.

  • UK-based, RUO-compliant supply chain
  • Batch-specific documentation on every order
  • Independent HPLC & mass-spec verification
Browse the catalogue
High-purity research peptides by Peptides Online
≥99%HPLC-verified purity
20,000+
Researchers served
99.1%
Avg. verified purity
27+
Documented compounds
4.9
From 1,200+ reviews
What we stand for

Built on proof, not promises

Four commitments behind every order we ship.

Verified purity

Every batch is analysed by HPLC, with mass-spec for identity, before it ever ships.

Batch-specific CoA

A Certificate of Analysis matched to your exact lot - test method, appearance and measured purity.

Full traceability

Each product lot is documented so it can move through the supply chain, confirmed against specification.

Research partnership

A knowledgeable UK team supporting credible, reproducible research - not just a checkout.

Our mission

Pure, documented peptides - available to research

As we grow we continue to support scientific research by making pure peptide compounds available, closing the gap between research communities and complex biochemical supply. Every vial ships with a batch-specific Certificate of Analysis that underpins credible, reproducible results.

Source with confidence.

Browse documented purity and batch-specific CoAs, or talk to our UK team about your research.