When you receive a Certificate of Analysis (COA) for an incretin mimetic like Semaglutide or Retatrutide, do you know what specific parameters to scrutinize? As European analytical chemists, we believe transparent data is the foundation of reproducible science, yet many grey-market vendors supply edited or outdated chromatograms.
Key Chromatographic and Mass Parameters
A legitimate COA must include both High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) spectra. Check the HPLC trace to confirm a single sharp peak representing 99%+ monomeric purity, and examine the MS spectrum to verify that the experimental molecular weight matches the theoretical peptide mass exactly.
- Purity vs. Content: Ensure the analysis distinguishes between chromatographic purity and total net peptide content relative to counter-ions.
- Batch-Specific Traceability: Verify that the lot number on your laboratory vial corresponds directly to the external laboratory report.
We spend over €300 per batch on independent European laboratory testing, making verified COAs standard with every shipment from our domestic EU warehouse. Skip the Influencer Tax and trust lab-tested reagents.
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