Bio-Quercetin®
Life Extension
Last updated: Oct 09, 2025
Bio-Quercetin® uses a quercetin combined with fibers from fenugreek seeds to increase bioavailability. The result: a science-based quercetin supplement that far outclasses standard quercetin formulations.*
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Bio-Quercetin® Ingredients*
We only evaluate bioactive ingredients—the ones that truly contribute to a product's performance. Below is a list of bioactive ingredients found in this product.
For each ingredient, the quantity in parentheses indicates the amount per serving.
Bio-Quercetin® Proprietary Blend contains 35% quercetin (10 mg) [from Japanese sophora concentrate (flower bud)], 30% galactomannans (8 mg) [from fenugreek (seed). Bio-Quercetin® is a patented ingredient blend from Life Extension corporation.
Quercetin is a powerful antioxidant flavonoid found in various fruits, vegetables, and grains, known for its anti-inflammatory, antihistamine, and immune-boosting properties.
Galactomannans are a type of dietary fiber. They can have beneficial effects on digestion and may help regulate blood sugar levels.
*These product and ingredient description statements have not been evaluated by the Food and Drug Administration (FDA). This product or its ingredients are not intended to diagnose, treat, cure or prevent any disease.
Product description and ingredient list are obtained from the product's brand/company website. Ingredient description is provided by our expert.
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