Renaissance Offers Banaba Extract, 1% Corosolic Acid

Chatsworth, CA-- Renaissance herbs is pleased to now offer a consistent, reliable supply of powdered extract of Banaba, standardized to 1% corosolic acid. A beautiful, flowering tree native to India and Southeast Asia (Laegerstroemia speciosa), it has long been used as a dietary supplement to support healthy blood sugar levels*.

Review of Current Research
A study reported in 1993 by researchers in Japan showed that corosolic acid had significant effects on glucose transport across cell membranes (Murakami et al., 1993). Research in the U.S. followed in 1999 with a double-blind placebo-controlled clinical study in type II diabetics taking a standardized banaba extract containing 1% corosolic acid. Taken after meals, blood glucose levels in the banaba group showed a significant drop and after 30 days the banaba group also showed an increased tendency to lose weight. On average, body weights dropped by up to 3.2 lbs (Anon, 2000).

Other studies suggest that Banaba might be useful as a dietary supplement for weight management, even in people without diabetes (Liu et al., 2001). A study in Japan has shown that when a hot water extract of the leaves is incorporated into the diet of genetically obese mice, they show a significant decrease in body weight. By the end of the study, fatty tissue weight decreased by 8% without any changes in the food intake of the mice (Suzuki et al., 1999).

Renaissance Herbs Banaba is a pure, powdered extract made from wildcrafted herbs using only water and alcohol. The product is Kosher Certified.

Renaissance Herbs, Inc. ( is an American company dedicated to the research and development of the finest and most innovative botanical health care products available today. Our 50,000 square foot factory and R & D Center in Bangalore, India provides manufacturers with potent, standardized botanical extracts backed by Good Manufacturing Practices. The company was founded in 1990 by Alex Moffett and maintains offices in Los Angeles, California; Bangkok, Thailand; and Bangalore, India.

* This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.


Anon. A Natural approach to lowering blood sugar. Life Extension Magazine. 2000;Sept:24-28, and

Liu F, Kim JK, Li YS, Liu XQ, Li J, Chen XZ. An extract of Lagerstroemia speciosa L. has insulin-like glucose uptake-stimulatory and adipocyte differentiation-inhibitory activities in 3T3-L1 cells. J Nutr. 2001;131(9):2242-2247.

Murakami C, Myoga K, Kasai R, Ohtani K, Kurokawa T, Ishibashi S, Dayrit F, Padolina WG, Yamasaki K. Screening of plant constituents for effect on glucose transport activity in Ehrlich ascites tumour cells. Chem Pharm Bull. 1993;41(12):2129-2131.

Suzuki Y, Unno T, Ushitani M, Hayashi K, Kakuda T. Antiobesity activity of extracts from Lagerstroemia speciosa L. leaves on female KK-Ay mice. J Nutr Sci Vitaminol. 1999;45(6):791-795.

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