Every Eterna Peptides batch is independently tested by Janoshik Analytical — the European gold-standard for peptide analysis. Results are published per batch, linked to the compound you received.
All testing is performed by Janoshik Analytical — an independent European laboratory specialising in HPLC and mass spectrometry analysis of research peptides. Janoshik operates no commercial relationship with Eterna Peptides; their certificates carry no conflict of interest.