SaleSEQ-4492Purelabspeptidesstore supplies laboratories worldwide with independently tested research peptides and reference compounds. Every batch carries a lot-specific certificate of analysis and ships cold-chain from our EU depot within 24 hours.

Synthesized this quarter and available for immediate laboratory dispatch.
Third-party HPLC and mass spectrometry on each production run. Certificates of analysis are attached to every order and archived under the batch identifier for the lifetime of the compound.
Solid-phase peptide synthesis under GMP-aligned protocols.
HPLC + MS assay from an independent partner laboratory.
Lyophilized and stored at −20 °C in inert atmosphere.
Insulated cold-chain shipping with full tracking.
A practical guide to peptide purity testing — how reverse-phase HPLC and mass spectrometry work, how to read a certificate of analysis, and which numbers actually matter.
What to verify before you buy peptides online — third-party testing, batch traceability, cold-chain shipping, documentation and compliance signals that separate real suppliers from resellers.
Temperature, diluent choice, aliquoting and freeze-thaw control — a laboratory guide to storing and reconstituting lyophilized research peptides while preserving assay integrity.