| Customization: | Available |
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| Certification: | ISO, Halal |
| Assay Method: | HPLC, UV |
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Product Name: Natural Sophora japonica extract 95% 99% quercetin OEM bottled capsules
Quercetin is a plant pigment (flavonoid). It is found in many plants and foods, such as red wine, onions, green tea, apples, berries, Ginkgo biloba, St. John's wort, and others. Buckwheat tea has a large amount of quercetin. Some people use quercetin as a medicine.
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