Purity you can audit
Research is only as reliable as the material behind it. Every PepXLabs batch passes a four-stage verification process before it reaches a laboratory bench.
- 1
Synthesis & screening
Compounds are produced by vetted GMP-aligned synthesis partners and screened on arrival before a batch is accepted.
- 2
HPLC purity assay
Reverse-phase HPLC establishes purity, with a hard floor of 99% for every catalogue peptide.
- 3
Mass spectrometry & COA
Molecular weight is confirmed by MS and the resulting certificate of analysis is filed against the batch number.
- 4
Lyophilization & cold chain
Vials are vacuum-sealed, stored at -20 °C and shipped with insulated packaging across Canada.
Request a certificate of analysis
Send us the batch number printed on your vial label and we will return the full COA, including HPLC chromatogram and mass-spec report.
Contact the lab team