Our standards
- 98%+ purity — verified by HPLC and mass spectrometry for reliable, reproducible research results
- Third-party COA — an independent Certificate of Analysis on every product page
- UK-based supply — fast, discreet delivery from climate-controlled facilities
- Research use only — all products intended strictly for laboratory and in-vitro research
Our testing process
Each batch of peptides undergoes rigorous third-party testing using High-Performance Liquid Chromatography (HPLC) and mass spectrometry (MS). These methods verify peptide identity, purity, and molecular weight. The resulting Certificate of Analysis (COA) is made available on every product page, so researchers can review the exact specifications of the peptide they are purchasing.
Storage and handling
Peptides are stored in climate-controlled, secure facilities and shipped in insulated packaging to maintain stability during transit. We recommend storing lyophilized peptides at -20°C or colder upon receipt. For detailed storage guidance, see our Peptide Storage Guide.