What It Actually Is
Banaba (Lagerstroemia speciosa) is a flowering tree native to Southeast Asia, with leaves traditionally used in Filipino herbal medicine, standardized here for corosolic acid content.
What Research Generally Shows
Corosolic acid has been studied for a potential role in helping glucose move into cells, with some smaller studies suggesting a modest reduction in post-meal blood sugar spikes.
The Honest Gap
GL-Defend doesn't disclose the specific amount of Banaba Leaf Extract or its corosolic acid content.
