All Apex Labs products are independently tested by ISO-accredited laboratories. Every COA is batch-specific, traceable, and available for download. COA documents will be published here as batches are released.
Our COA archive is being set up. All batch-specific certificates will be published here as products are released. Each document will include HPLC purity results, endotoxin testing, and batch traceability information.
In the meantime, COA documents are available directly on each product page.
Browse ProductsHigh-Performance Liquid Chromatography (HPLC) is the gold standard for peptide purity analysis. It separates, identifies, and quantifies each component in a sample, giving a precise purity percentage. We require ≥99% purity for all products.
A batch-specific COA is tied to a unique production lot number — not a generic test done once for a compound. When you receive your order, the batch number on the vial corresponds directly to a specific COA in this archive.
All analytical testing is conducted by independent, ISO-accredited third-party laboratories. We do not conduct our own testing — using external labs removes any conflict of interest and ensures objective, verifiable results.
In addition to purity, each batch is screened for endotoxins using LAL (Limulus Amebocyte Lysate) testing. This ensures the product is free from bacterial contamination that can compromise research integrity.
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