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Banaba Leaf Extract

  • Latin Name:   Lagerstroemia Speciosa
  • Synonyms:   Banaba Extract, Banabalean, Corosolic Acid, Crape Myrtle, Crepe Myrtle, Extrait de Banaba, Myrte de Crêpe, Pride-of-India, Pyinma, Queen's Crape Myrtle.
  • Part of Used:   Leaf
  • Specifications:   Corosolic Acid 1%-98% / 10:1 TLC (100% Water extraction)
  • Appearance:   Light Yellow fine powder
  • Application:   Medicine, food additive, dietary supplement
Email: info@nutragreen.co.uk

Product name

Banaba leaf extract

Latin Name

Lagerstroemia Speciosa

Active ingredients

Corosolic acid


Banaba Extract, Banabalean, Corosolic Acid, Crape Myrtle, Crepe Myrtle, Extrait de Banaba, Myrte de Crêpe, Pride-of-India, Pyinma, Queen's Crape Myrtle.


Light yellow fine powder, White fine powder

Part used



Corosolic acid 1%-98%


Main benefits

Controlling blood sugar, Weight loss

Applied industries

Medicine, food additive, dietary supplement

What is Banaba leaf extract?

Banaba leaf comes from the banaba bush, or Lagerstroemia speciosa, an ornamental plant indigenous to Australia, Southeast Asia, and India. It is also found in other warm climates throughout the world including the temperate regions of the United States, where it is commonly known as crepe myrtle. In addition to its use as a decorative shrub, the banaba bush has been prized for its medicinal properties. Banaba leaf extract contains high levels of corosolic acid. Studies have shown that the corosolic acid naturally present in banaba leaf may improve blood sugar control in type II diabetics.
Chemical constituents of Banaba leaf extract
It is known that the tree has a triterpenoid compound called corosolic acid.The latter stimulates glucose receptors increasing their activity and thus aiding in the absorption of blood sugar into the cells of the body. it helps lower blood glucose level.
The tree is said to contain high concentrations of dietary fiber and minerals such as zinc and magnesium, 16 amino acids, tannins, and lipids. Due to its chemical composition Banaba may possess antibacterial, diuretic, and purgative properties. It may also be helpful in alleviating fevers.
Benefits of taking Banaba leaf extract supplements:
Controlling blood sugar
Banaba has been used for years in the Philippines and other parts of Asia as a method of controlling blood sugar. It may stimulate the transport of glucose into the cells resulting in lower blood sugar levels.
Numerous clinical studies, on both humans and animals, have shown banaba leaf extract's ability to lower blood sugar levels. One study at the Southeastern Institute of Biomedical Research, using a 1 percent corosolic acid extract of banaba leaf, consistently reduced blood glucose significantly in people with type-II diabetes.
Weight loss
Banaba leaf extract is help control hunger, but it doesn’t work like a prescription appetite suppressant. Banaba leaf will not leave the dieter feeling no hunger at all, but it may give the dieter the power to control what they eat so they lose more weight.
An animal study published in the Journal of Nutritional Science showed banaba leaf extract to not only regulate glucose, but also induce weight loss. Experts believe this is because the regulation of blood sugar levels helps control cravings for sweets and other simple carbohydrates, allowing the person to eat less (and healthier) with less difficulty.
The extract of the Banaba is good for helping to relieve urinary tract infections. The bush has also been linked to a reduction of cholesterol and the lowering of blood sugar in diabetes patients. There has been evidence that indicates that regular consumption of the tea can alleviate kidney stones and help reduce the chance of gallbladder stones.
Side effects and safety of Banaba leaf extract
Banaba leaf extract is commonly ingested in the form of tea, juice, or dietary supplements. Some of the only known side effects of banaba leaf are fatigue, dizziness, and headache associated with hypoglycemia, commonly known as low blood sugar. 
Dosage of Banaba leaf extract supplement:
Banaba leaf extract 12:1 Lagerstoemia speciosa 250 mg
(Equivalent to 3,000 mg whole leaf) 1.5 % corosolic Acid = 3.75 mg 
Suggested Use: 1 or 2 banaba leaf extract capsules daily or as directed by a qualified healthcare professional. Since each patient with diabetes is unique, it is difficult to predict the appropriate dosage.