The RegeneX Journal

Notes from the bench.

Methodology, quality control, storage science, and literature reviews from our lab team. Written for researchers, cited to primary sources.

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Featured · QC NCCO
JM J. Mendez, QA Lead Aug 4, 2026 9 min read

How to actually read a Certificate of Analysis: a field guide for skeptical researchers

An HPLC chromatogram can be made to say almost anything if you crop it right. Here is what we look for when auditing our own lots — retention time consistency, baseline noise, integration windows — and the red flags that should make you question any vendor's COA, including ours.

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