Banaba Leaf In GlycoAid
A Philippine tree leaf carrying corosolic acid, drunk as tea long before capsules.
What It Is And Why It Is Here
The leaf of Lagerstroemia speciosa, a flowering tree across the Philippines and Southeast Asia, where it has been drunk as a tea for generations.
Corosolic acid, a triterpenoid studied for its effect on how cells take up glucose. Extracts are often standardised to a percentage of it.

Evidence: Moderate. Several human studies exist, generally small ones, and the findings are less settled than for the large-evidence ingredients on this panel.
The evidence picture
A handful of small human trials with generally positive findings, well short of the volume behind berberine or cinnamon.
The Dose Question
Studies commonly use extracts standardised to one or two percent corosolic acid at roughly 30 to 50 mg a day. GlycoAid publishes neither the amount nor the standardisation.
Banaba Leaf On The GlycoAid Label
| Most studied for | Glucose uptake |
|---|---|
| Key compound | Corosolic acid |
| Typical research dose | 30–50 mg of standardised extract |
| Amount in GlycoAid | Not published; inside the 500 mg blend |
| Standardisation | Not stated on the label |
Cautions
Banaba leaf is well tolerated at supplement intakes. Because it is studied for glucose uptake it belongs in the conversation with any doctor managing blood sugar medication.
Questions About Banaba Leaf
What is corosolic acid?
The triterpenoid in banaba leaf that most of the research is about. Extracts are often standardised to a percentage of it.
Is banaba leaf well studied?
Moderately. There are several small human trials rather than the large body of work behind berberine.
Does the label say how standardised it is?
No. The blend declares one combined weight and no standardisation percentages.
Is it the same as banaba tea?
The same plant, a different preparation. Tea and a standardised extract are not interchangeable amounts.
Judging It Fairly
No single ingredient on this panel can be assessed on its own from the outside, and no week of taking the capsule can settle anything either. Why week one tells you nothing is the short version of that argument.
How It Sits In The Formula
Banaba Leaf is declared inside a single 500 mg proprietary formulation alongside thirteen other ingredients, so the amount here is unknown. That is the honest position on every ingredient page on this site, and it is why the piece on blends is worth ten minutes. The ingredient before this one on the label is Gymnema Sylvestre and the one after it is Bitter Melon.
GlycoAid Carries All Fourteen
Banaba Leaf is one ingredient of fourteen in a 500 mg once-daily capsule.
- 14 ingredients in one 500 mg formulation
- One capsule daily with a meal, 30 to a bottle
- 60-day money-back guarantee
- Free US shipping on 3 and 6 bottle packages
