... 20% Test Method: HPLC Banaba Extract Active Ingredient: corosolic acid Specification: 1%,3%,5%,10%,20% Test Method: ... %,10%,20% Test Method: HPLC Banaba EXTRACT Lagerstroemia speciosa L corosolic acidCategory: Standardized Botanical Extracts Latin Name: Country: Specification ... to lower blood sugar is attributed to its corosolic acid, a triterpenoid glycoside, belived to facilitate glucose-transport ...