Every compound we sell is independently tested by accredited third-party laboratories — including BTLabs, Janoshik, and Krause Analytical LLC. Certificates of Analysis cover bacterial endotoxin testing, HPLC purity, mass-spectrometry identity confirmation, and quantification.
Every batch independently tested. Browse, filter, and download our full library of COA documents — HPLC purity, mass-spec identity, and more.
If you received a batch not listed here, or need a full PDF copy for your records, message us on WhatsApp with your batch code and we'll send it within minutes.
All compounds supplied by Excelsior Labs are intended exclusively for in-vitro laboratory research and scientific study. They are not approved by the FDA for human or veterinary use, are not medicines, and are not intended to diagnose, treat, cure, or prevent any disease or condition.