Optimized Quercetin

  • 250 mg, 60 vegetarian capsules
  • Item # 01309

Optimized Quercetin

  • 250 mg, 60 vegetarian capsules
  • Item # 01309

Supports cellular health & immune function

Optimized Quercetin delivers 250 mg standardized quercetin in a bioavailable superfood supplement blend with vitamin C and camu-camu berry extract to support a healthy immune response and more.
Gluten Free Non-GMO Vegetarian

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$0.28/count | 30 - 60 Day Supply

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I use this for cardiac support. Works well for me!

Mary, Medina Ohio

I felt more energy when I started to use this product.

Alex, Woodstock, MD

This is good for those times of seasonal distress.

Maureen, Bartlesville, OK

Frequently Bought Together

  • This Item: Optimized Quercetin, 250 mg, 60 vegetarian capsules
  • Decaffeinated Mega Green Tea Extract, 100 vegetarian capsules
Optimized Quercetin, 250 mg, 60 vegetarian capsules - Life Extension
Decaffeinated Mega Green Tea Extract, 100 vegetarian capsules - Life Extension

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Optimized Quercetin

250 mg, 60 vegetarian capsules


$0.28/count | 30 - 60 Day Supply

Quercetin is a bioflavonoid found in red grape skins, red onions, apples, buckwheat and other food sources. Quercetin supports healthy cellular function, cardiovascular health and has also been shown to encourage a healthy immune response, especially to seasonally changing environments.

Quercetin supports immune health. Ours is augmented with vitamin C and camu-camu extract for further immune support.

Optimized Quercetin Benefits

  • Promotes cellular health & DNA function
  • Supports healthy seasonal immune response
  • Encourages healthy endothelial integrity
  • Supports already healthy blood glucose levels
  • Helps maintain already healthy cholesterol levels

Optimized Quercetin

Quercetin, the Super-Food You've Never Heard Of

Quercetin is a phytonutrient derived from apples, onions and buckwheat. Quercetin can help support a healthy immune response, especially to seasonally changing environments. Quercetin also encourages healthy nitric oxide levels, which helps maintain already healthy blood pressure levels. This bioflavonoid also supports healthy cholesterol levels already within normal range.

Quercetin promotes cardiovascular health by protecting the integrity of your vascular endothelium.1-3 One way quercetin does this is by encouraging healthy levels of nitric oxide, which supports healthy blood pressure levels already within the normal range.4

These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.
  1. Atherosclerosis. 2011;218(1):44-52.
  2. European Journal of Pharmacology. 2011;658(2):248-256.
  3. Molecular Aspects of Medicine. 2010;31(6):478-494.
  4. The American Journal of Clinical Nutrition. 2008;88(4):1018-1025.
  5. Clinical Chemistry. 2000;46(8):1162.
  6. Nutrition. 2011;27(6):617-623.
  7. Journal of Thrombosis and Haemostasis. 2004;2(12):2138-2145.
  8. Nutrition research and practice. 2011;5(1):28-33.
  9. Biological and Pharmaceutical Bulletin. 2008;31(7):1403-1409.
  10. International Journal Of Obesity. 2011;35:1165.
  11. Rejuvenation Research. 2011;14(5):525-534.
  12. European Journal of Pharmacology. 2010;642(1):134-139.
  13. Neuroimmunomodulation. 2006;13(3):179-186.
  14. The Journal of Immunology. 2010;184(12):6815.

Serving Size 1 vegetarian capsule

Amount Per Serving

Vitamin C (from ascorbic acid and camu-camu berry extract)

30 mg

Optimized Quercetin Food Blend

500 mg

(supplying 250 mg quercetin) [quercetin dihydrate, buckwheat (sprout), apple polyphenol extract (fruit), onion extract (bulb)]

Camu-camu extract (wildcrafted berry)

60 mg

Other ingredients: vegetable cellulose (capsule), microcrystalline cellulose, silica, maltodextrin, stearic acid.


Dosage and Use
  • Take one (1) capsule once or twice daily, or as recommended by a healthcare practitioner.
  • 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.

To report a serious adverse event or obtain product information, contact 1-866-280-2852.

Actual Size

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Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.

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