Centella Asiatica Extract: Reading a COA Like a Formulator

Centella asiatica extract is valued for its triterpenoid fraction, particularly asiaticoside, madecassoside, asiatic acid and madecassic acid. A well-standardized extract should declare individual assay values for each marker compound rather than a single total triterpenoid figure. Formulators comparing suppliers should pay attention to the HPLC method used, the ratio of glycosides to free acids, and whether the COA includes stability data under typical storage conditions.