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Optimized Quercetin

Supports Cellular Health & Immune Function

250 mg, 60 vegetarian capsules
Item# 01309

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  • Optimized Quercetin
  • 250 mg, 60 vegetarian capsules
  • Item Catalog Number: 01309

Quercetin is a bioflavonoid that supports cellular health, endothelial health, and healthy immune function. Optimized Quercetin delivers 250 mg of standardized quercetin in a bioavailable super food blend, as well as vitamin C and camu-camu berry extract to further support a healthy immune response and more.

Benefits at a Glance

  • Promotes cellular health and DNA function
  • Supports healthy seasonal immune response
  • Encourages healthy endothelial integrity
  • Supports already-healthy blood glucose levels
  • Promotes cholesterol levels already within normal range

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.

Supports cardiovascular and endothelial health

Quercetin promotes cardiovascular health by protecting the integrity of your vascular endothelium.1-4 One way quercetin does this is by encouraging healthy levels of nitric oxide: which supports healthy blood pressure levels already within the normal range.5

This unique phytonutrient also supports healthy cholesterol levels already within normal range.6 Quercetin also helps reduce oxidative stress, promotes a healthy inflammatory response in blood vessel walls as a result of healthy gene expression,7 and supports healthy blood glucose levels already within normal range.8-14

Promotes a healthy immune response

In human cell culture studies, quercetin has been shown to block the manufacture and release of inflammation-causing substances,15-18 which can help support a healthy immune response, especially to seasonally changing environments. And our Optimized Quercetin blend also contains vitamin C and camu-camu berry extract to further promote healthy immune function.

  1. Mol Aspects Med. 2010 Dec;31(6):478-94.
  2. Atherosclerosis. 2011 Sep;218(1):44-52.
  3. Eur J Pharmacol. 2011 May 11;658(2-3):248-56.
  4. Eksp Klin Farmakol. 2010 Oct;73(10):14-6.
  5. Am J Clin Nutr. 2008 Oct;88(4):1018-25.
  6. Clin Chem. 2000 Aug;46(8 Pt 1):1162-70.
  7. J Thromb Haemost. 2004 Dec;2(12):2138-45.
  8. Nutr Res Pract. 2011 Feb;5(1):28-33.
  9. Biochem J. 2005;386:471-8.
  10. Int J Obes (Lond). 2011 Sep;35(9):1165-72.
  11. Biol Pharm Bull. 2008 Jul;31(7):1403-9.
  12. Rejuvenation Res. 2011 Oct;14(5):525-34.
  13. Nutrition. 2011 Jun;27(6):617-23.
  14. Am J Clin Nutr. 2010 Dec;92(6):1511-21.
  15. Arch Pharm Res. 2008 Oct;31(10):1303-11.
  16. Neuroimmunomodulation. 2006;13(3):179-86.
  17. Eur J Pharmacol. 2010 Sep 10;642(1-3):134-9.
  18. J Immunol. 2010 Jun 15;184(12):6815-21.


Supplement Facts

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 with or without food, or as recommended by a healthcare practitioner.


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