Independently Verified. Every Batch. Every Time.
Trust in research supplies begins with data. We test every batch through an independent ISO-accredited laboratory and publish the results on every product page.
Our Testing Protocol
Identity
Mass spectrometry (LC-MS or MALDI-TOF as appropriate to the compound) confirms that the peptide in the vial matches the labeled sequence and molecular weight.
Purity
High-performance liquid chromatography (HPLC) measures purity to a minimum threshold of 98% — and in most cases ≥99% — with the resulting chromatogram included on the COA.
Concentration
Each lot is measured for actual peptide content, so that researchers can calculate working concentrations from real data rather than nominal labeling.
Endotoxin & Contamination Screening
Where applicable to the compound class, we screen for bacterial endotoxin and residual solvent contamination.
COA Lookup
Every lot we ship is searchable in our public Certificate of Analysis Lookup tool. Enter the lot number printed on your vial and receive the full testing report for your specific batch — including identity, purity, and concentration data.
Manufacturing & Supply Chain
Our peptides are synthesized at audited international facilities operating under documented GMP-grade or equivalent quality systems. Every shipment received at our US fulfillment center undergoes inspection and is held until third-party testing data clears. We do not ship product without an accompanying COA.
Storage & Handling
Each product page includes compound-specific storage guidance, but the general protocol is: store lyophilized material at -20°C protected from light, and store reconstituted material at 2–8°C within the manufacturer-recommended use window. Cold-chain packaging is included at no charge for shipments where compound stability warrants it.