Independent Test Reports
Every batch independently tested by Medutest, PeptideMeter & VendorInvestigate — purity, heavy metals, endotoxin and sterility — plus Janoshik Analytical HPLC purity. 99.5%+ purity confirmed across our entire product range. Open any report below to view all four laboratories.
What Is HPLC Testing?
High-Performance Liquid Chromatography (HPLC) is the gold standard for compound analysis. It separates, identifies, and quantifies each component in a sample, providing precise purity percentages. Our reports consistently show 99.5%+ purity across all product lines.
Four Independent Laboratories
Every batch is cross-verified by four fully independent third-party labs — Medutest, PeptideMeter, VendorInvestigate and Janoshik Analytical. None have financial ties to GL Biochem, so every result is unbiased and verifiable. Pick a product, choose a lab, and open the report — the Medutest, PeptideMeter and VendorInvestigate reports each carry their own verification link.
Our Testing Process
Every manufactured batch is sampled and shipped directly to Janoshik for analysis. Reports cover compound identity confirmation and purity percentage via HPLC with mass spectrometry verification. Only batches that pass are released for sale.
Need a specific certificate of analysis? Contact our team for batch-specific documentation.