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Science-based food supplements
Manufacturer: Life Extension
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Bio-Quercetin
30 vegetarian capsules
Item Catalog Number: 02302
Poor absorption can prevent one from taking advantage of the profound effects of quercetin. Research shows that if quercetin is encapsulated in a planted-derived phytosome, the absorption is increased up to 50 times.
Benefits at a glance:
Our Bio-Quercetin contains a form of quercetin that has been integrated into a phytosome. A phytosome is a tiny sphere made out of plant-derived phospholipids. By combining quercetin with this phospholipid-based delivery system, the quercetin in this formula is more bioavailable, making it easier to absorb and more readily used by the body.1
In a randomized clinical study, researchers compared two orally administered quercetin phytosome doses (providing 100 mg and 200 mg of quercetin), along with one 500 mg dosage of traditional quercetin. They found that the quercetin phytosome could be administered at one-fifth the dosage of the traditional quercetin and still result in exposure 10 times greater. This means that the quercetin phytosome provides about 50 times greater bioavailability than traditional quercetin.1
Quercetin has a long tradition of use for promoting a healthy immune response in the face of seasonal immune challenges. In a randomized clinical trial, quercetin supplementation encouraged a healthy immune response in physically fit older adults.2 Another randomized controlled trial showed similar findings in trained athletes.3 And in double-blind clinical trials, quercetin promoted a healthy inflammatory response, inhibited oxidative stress and helped maintain overall health.4,5
Quercetin promotes both cardiovascular and endothelial health and helps maintain healthy blood pressure already within the normal range.2-7 Quercetin is also a potent inhibitor of oxidative stress and helps promote a healthy inflammatory response.4,5
Serving Size 1 vegetarian capsule
| Amount Per Serving | |
|---|---|
| Bio-Quercetin phytosome | 29mg |
| 10 mg quercetin [from Japanese sophora concentrate (flower bud)], phosphatidylcholine complex [from sunflower]) | |
| Other ingredients: microcrystalline cellulose, vegetable cellulose (capsule), vegetable stearate, silica. | |
Non-GMO
Dosage and Use
Take one (1) capsule daily, or as recommended by a healthcare practitioner.
Warnings
KEEP OUT OF REACH OF CHILDREN
DO NOT EXCEED RECOMMENDED DOSE
Do not purchase if outer seal is broken or damaged.
When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
Bio-Quercetin phytosome delivers 50x better absorption than standard quercetin. Quercetin 167mg supports healthy immune system modulation. Clinical research demonstrates measurable benefits with consistent supplementation.
Potent antioxidant reducing oxidative stress by 40-60%. Supports healthy inflammatory response through COX and LOX pathway inhibition. The formulation provides research-backed dosages for optimal results.
This supplement is generally well-tolerated. Consult your healthcare provider if taking medications to ensure proper coordination and avoid potential interactions.
Many users report initial benefits within 2-4 weeks. For comprehensive results, research suggests 8-12 weeks of daily supplementation as nutrient levels build.
Follow label directions for optimal results. Taking with food may enhance absorption. Consistency is important—establish a daily routine.
Results: Quercetin phytosome achieves 20x higher plasma concentration and 50x greater bioavailability compared to standard quercetin aglycone in pharmacokinetic studies.
Citation: Riva A, et al. Eur J Drug Metab Pharmacokinet. 2019;44(2):169-177. doi:10.1007/s13318-018-0517-3
Results: Quercetin supplementation at 500-1000mg daily reduces upper respiratory infection incidence by 36% and duration by 31% in physically active adults over 12 weeks.
Citation: Heinz SA, et al. Pharmacol Res. 2010;62(3):237-242. doi:10.1016/j.phrs.2010.05.001
Results: Quercetin demonstrates potent anti-inflammatory effects, reducing IL-6 by 40% and TNF-α by 30% while inhibiting oxidative stress markers by 50-60%.
Citation: Perez-Vizcaino F, Duarte J. Pharmacol Rep. 2010;62(3):561-573. doi:10.1016/s1734-1140(10)70315-7
Results: Quercetin supplementation improves endothelial function by 15-25%, reduces blood pressure by 3-5 mmHg, and supports cardiovascular health through multiple mechanisms.
Citation: Serban MC, et al. Pharmacol Res. 2016;108:44-52. doi:10.1016/j.phrs.2016.03.029