The present invention relates to pharmaceutical, therapeutic, and dietary compositions derived from leaf of the Lagerstroemia speciosa L. plant and the novel extraction processes used to produce these controlled blends of varying composition with respect to corosolic acid, gallotannins, ellagitannins, and valoneic acid dilactone. Embodiments of the invention include an approximately 15.5% to about 98.5% mixture of a corosolic acid rich banaba leaf extract in a tannic acid enriched base for novel combinations for pharmaceutical, therapeutic and/or dietary compositions that yield healthful benefits. Some embodiments of the invention do not include corosolic acid, or include it at a low concentration in combination particularly enriched in other compounds. Such extract compositions that do not contain corosolic acid, are the product of extraction process that yield controllably increased ratios of gallotannins, ellagitannins, and valoneic acid dilactone. Such compositions, both those containing corosolic acid and those lacking corosolic acid are efficacious in effecting control of blood glucose.
Staherb Natural Ingredients Co., Ltd main product include banaba leaf extract Corosolic acid (1-98%),Dihydromyricetin (1-98%), Euccomia Bark Extract (5-95%), Amygdalin (50-98%),Ursolic acid (25-98%) ,myricetin(10%-98%),magnolia bark extract,rosmary leaf extract ,macleaya cordata extract ect.
Banaba leaf extract corosolic acid contact email@example.com