Science is our obsession.
Purity is our promise.
Signal Peptide was founded with a singular mission: bringing pharmaceutical-grade research compounds to scientists with complete transparency and zero compromise.
“We believe every researcher deserves access to compounds they can trust — with the data to prove it.”— The Signal Peptide Team
Built for Researchers
Signal Peptide was born from frustration with the status quo — too many suppliers offering underdosed, poorly documented compounds. We set out to change that.
Every batch is independently verified by HPLC and mass spectrometry. Every order ships with a full Certificate of Analysis. No exceptions, no compromise.
Our Core Values
Uncompromising Purity
We never ship a batch without independent third-party verification. Every compound is tested by HPLC and mass spectrometry before release.
Full Transparency
Every order includes a full Certificate of Analysis with raw HPLC chromatogram data. You see exactly what you're getting.
Research-First Design
Our packaging, documentation, and support are built around the needs of real researchers — from lyophilisation to cold-chain shipping.
Researcher Partnership
Our scientific team is available to support protocols, answer technical questions, and help you get the most from our compounds.
UK-Based Operations
Fully UK-based sourcing, testing, and dispatch. Every shipment is traceable, documented, and compliant with research chemical regulations.
Continuous Improvement
We continuously audit processes, update our range based on emerging research, and expand analytical testing protocols.
Explore Our Research Range
Every compound backed by data, dispatched fast, verified to pharmaceutical-grade purity.