Banaba extract is used as a natural health supplement and is made from the leaves of the banaba tree. Some research suggests that banaba extract may support blood sugar balance and weight loss. The primary active ingredient is corosolic acid, and there are also numerous possible synergists including lager-stroemin, flosin B and reginin A.

Corosolic Acid is an extract from the leaves of Banaba (Lagerstroemia speciosa), and can also be extracted from other plants such as Campsis Grandiflora, Weiglea Subsessilis, Perilla Fructescens and Almomd Hull. Corosolic Acid is believed to be beneficial in treating type 2 diabetes because it may possess the ability to reduce glucose levels. Corosolic Acid may also be beneficial in lowering the blood pressure as well as burning fat. It is also believed to have powerful antioxidant properties. It may help to neutralize free radical, promote healthy kidney function and prevent cell membrane lipid oxidation

 

Benefits

Anti-diabetic Property (Treating type 2 diabetes by reducing glucose levels)
Weight Loss
Anti-oxidant
Beneficial Kidney effects

Safety, Adverse effects and unknowns
There has been no toxicity reported with Corosolic Acid, but there are still tests being done to confirm this.
Those who are pregnant or nursing should avoid products with Corosolic Acid.
Those who have the medical condition hypoglycemia should not take products containing this ingredient.
Those who are taking any diabetes medication should avoid any products containing this ingredient.