Corosolic acid 4547-24-4  is a kind of triterpenoids which is naturally presented in Lagerstroemia.that can either exist in the free form or in the form of saponins inside the plant bodies. In banaba leaf, it often with its isomers hawthorn acid (2α-hydroxy oleanolic acid) with similar structures and chemical properties between each other, thus causing difficulty in separation. In vivotest shows corosolic acid promotes the cellular glucose uptake and utilization through stimulating the transport of glucose, thus smoothly achieving its hypoglycemic effect. For this reason, people also call corosolic acid as plant insulin.

Corosolic acid can alsocan weight loss. Clinical study has shown that orally administration of corosolic acid can adjust insulin and blood sugar levels with significant trend of weight loss (average weight loss 0.908-1.816Kg), with exercise, drinking a lot of water and regulating the diet with products containing corosolic acid 4547-24-4 canto the best function of weight loss efficacy.
In addition corosolic acid 4547-24-4 also has many biological activity, such as inhibitory effects on TPA-induced inflammation which anti-inflammation effect is more effective than commercially available anti-inflammatory drug, indomethacin; Also, it has a inhibitory effect on DNA polymerase and inhibitory effects on a variety of tumor cell growth.

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