Our Testing Standard
Every peptide we carry undergoes a three-panel independent test at Janoshik Analytical (Czech Republic) before release.
HPLC (High-Performance Liquid Chromatography)
Measures purity percentage. We require ≥98% HPLC minimum. Most of our products exceed 99%.
Mass Spectrometry (MS/MS)
Confirms molecular identity. A product can pass HPLC but be the wrong compound entirely — mass spectrometry catches this. We require identity confirmation on every batch.
Endotoxin Testing (LAL Assay)
Endotoxin contamination is invisible to HPLC. Industry data shows approximately 8% of peptides contain detectable endotoxins. Every batch we receive is tested separately for endotoxin levels before release.
How to Verify Your COA
Every product page includes a downloadable Certificate of Analysis (COA). To independently verify your COA is authentic:
- Go to janoshik.com/verify
- Enter the batch number printed on your COA
- The original test result will be displayed directly from Janoshik’s database
For Research Use Only. Not for human consumption.