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Verdaine

The Verdaine Journal

Editorial science for the self-directed researcher.

Long-form reading, literature surveys, and protocol guides — written by the Verdaine lab and our editorial contributors. Unhurried, rigorous, and citation-rich.

CategoriesPeptide FundamentalsResearch ProtocolsHormonal Health ResearchLongevity Science

Feature · Peptide Fundamentals · 7 min read

Understanding Research Peptide Purity

What 99% HPLC really means — and why the test method matters more than the number.

Dr. Mira Halden·March 18, 2026