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Natrol, Quercetin, 500 mg, 50 Capsules

By Natrol

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  • Product Code: NTL-00908
  • UPC Code: 047469009083
  • Package Quantity: 50 Capsules
  • Dimensions: 4.3 x 2 x 2 in, 0.15 lbs (0.07 kg)
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Product Overview

  • 500 mg Per Serving
  • Supports Immune Health
  • High Potency Antioxidant Formula
  • Dietary Supplement

Natrol Quercetin combines Quercetin with high potency Vitamin C and Citrus Bioflavonoids—compounds naturally found together in a variety of healthy plant-based foods. The result is an advanced antioxidant formula to support immune health.

Suggested Use

Take 2 capsules, one time daily, with a meal.

Other Ingredients

Gelatin, magnesium stearate, silica, water.

No yeast, wheat, milk, egg, soy, glutens, artificial colors or flavors, added sugar or preservatives


Consult your healthcare professional prior to use if you have or suspect a medical condition, are taking prescription drugs, or are pregnant or lactating.

Store in a cool, dry place.

Keep out of reach of children.

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Supplement Facts
Serving Size: 2 Capsules
Servings Per Container: 25
  Amount Per Serving %DV
Vitamin C (as Ascorbic Acid) 1,000 mg 1,667%*
Quercetin 500 mg **
Citrus Bioflavonoid Complex
(may be derived from Lemon, Orange, Lime, Tangerine)
100 mg **
*Based on a 2,000 calorie diet.
**Daily Value (DV) not established.

iHerb Customer Reviews

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Health journalist Bill Sardi takes this product!

Posted by Reviewer1355153 on Oct 04, 2008

So far, so good. Works as a natural anti-histamine, and to me, the Vitamin C in this form doesn't seem as acid as in an ordinary pill. You can find more about Quercetin via Bill's TheCancerbook.com or Google "Bill Sardi Archives" without the ". Or just search "Quercetin".

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6 people found the following review helpful

natrol quercetin 500mg

Posted by Reviewer1176499 on Apr 14, 2013

I actually bought this for myself, but it was the result my husband got that sold me. He was having an allergy related asthma attack and the rescue inhaler was not lasting the full 4hours. He was wheezing and coughing and could not stop. I gave him natrol quercetin and within 15 minutes his recovery was amazing. His wheezing subsided alot. No drowsy side effects... This product is a life safer.

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4 people found the following review helpful

Natrol Quercetin

Posted by Reviewer1015224 on Feb 09, 2012

Supports the immune system well. Also reduces histamine response.

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4 people found the following review helpful

Natrol won't reply to my query

Posted by emanuela on Mar 09, 2014

I have written to Natrol twice asking whether this product contains GMO (for instance, the vitamin C part). No reply yet. I am suspicious of companies that do not take the time to reply to customer queries.

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4 people found the following review helpful

hayfever saviour

Posted by Reviewer3119928 on Aug 23, 2010

great for hayfever

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3 people found the following review helpful

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