Corosolic acid (CA) is also a pentacyclic triterpene found predominantly in Lagerstroemia speciosa L. (banaba) with significant pharmacological potential in treating diabetes due to its insulin-like properties, which made it known as phyto-insulin [117]; in addition, corosolic acid acts as an anti-inflammatory and anti-neoplastic agent [66]. This evidence concerns the gene INS and diabetes mellitus.