| Banaba leaf | Loquat leaf |
Experiments showed that corosolic acid promoted the absorption and utilization of glucose by stimulating glucose transport, thus achieving its hypoglycemic effect. That is why the corosolic acid is also known as plant insulin.
The main Purity and usage：
| No | Purity | Application | Test |
| 1 | Corosolic acid 2% | Anti-obesity action | HPLC |
| 2 | corosolic acid 3% | Anti-obesity action | HPLC |
| 3 | corosolic acid 20% | Herbal Supplement | HPLC |
| 4 | corosolic acid 30% | Medicine, health care product | HPLC |
| 5 | corosolic acid -98% | Medicine, clinical studies | HPLC |
It is （CSA) mainly Efficacy and toxicity experimental and clinical studies for the prevention and treatment of obesity and type II diabetes.