... %,3%,5%,10%,20% Test Method: HPLC Banaba Extract Active Ingredient: corosolic acid Specification: 1%,3%,5%,10%,20% Test Method ... No.: Active Ingredient: corosolic acid Specification: 1%,3%,5%,10%,20% Test Method: HPLC Banaba EXTRACT Lagerstroemia speciosa L corosolic ... The hypoglycemic (blood sugar lowering) effect of banaba leaf extract is similar to that of insulin which induces glucose transport ...