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Source Naturals, Activated Quercetin, 10 Tablets (Discontinued Item)

By Source Naturals

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The item is currently out of stock and replenishment is unconfirmed.

Out of Stock - Discontinued
  • Product Code: SNS-00291
  • UPC Code: 021078002918
  • Package Quantity: 10 Tablets
  • Dimensions: 1.7 x 1.7 x 3 in, 0.05 lbs (0.02 kg)

Product Overview

  • Trial Size
  • Dietary Supplement
  • Bioflavonoid Complex

Activated Quercetin is a unique bioflavonoid derived from plant sources. In human cell culture studies, quercetin has been shown to inhibit histamine release. Additional research needs to be conducted to confirm the effects of quercetin, if any, in humans. Bromelain is a pineapple enzyme that may assist the body in times of stress. Magnesium ascorbate is a buffered (non-acidic) form of vitamin C that helps support the immune system.

Suggested Use

3 to 6 tablets daily in divided doses, between meals. If you have a delicate, easily irritated stomach, take with meals.

Other Ingredients

Sorbitol, stearic acid, modified cellulose gum, silica and magnesium stearate.


Caution: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

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Supplement Facts
Serving Size: 3 Tablets
Servings Per Container: 3
  Amount Per Serving %DV
Calories 5  
Total Carbohydrate 1 g <1%*
Vitamin C (as magnesium ascorbate) 646 mg 1,076%
Magnesium (as magnesium ascorbate) 50 mg 13%
Quercetin 1 g
Bromelain (2,000 G.D.U. per gram)†† 300 mg
*Percent Daily Values (%DV) are based on a 2,000 calorie diet.
†Daily Value not established.
††GDU is a standard measure of activity for bromelain.

iHerb Customer Reviews

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Source Naturals, Activated Quercetin

Posted by alvinlky on Jan 25, 2013

Excellent Quality supplements.

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4 people found the following review helpful

The only quercetin that instantly stops my allergies!

Posted by PurplePegasus on Apr 07, 2012

I have tried other brands and always come back to Source Naturals. Quercetin is an onion derivative which stabilizes the (mast) cell membrane during an allergy attack so that no histamine is released--which is what causes our miserable allergy symptoms--thus acting like a natural antihistamine. Vitamin C is needed to activate the quercetin and bromelain further helps things. This is the perfect combo. When I tried Dr's Best I felt no relief whatsoever, even when taken with C caps. I have used these tablets for years, then switched to the SN caps and found equally rapid relief with both. I take 3 during an attack and the symptoms are gone within 15 min. Please note that the tablets contain gluten from wheat, the caps do not. My Dr suspected a gluten allergy and I was on a gluten-free diet for a while, but as tests later revealed, luckily that is one health problem I do not have. The tablets are medium sized and rather flat. I hope this info helps someone out there find the right side-effects free allergy pill.

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18 people found the following review helpful

Seemed to help

Posted by healthydoesit on Oct 10, 2013

My dad was hesitant to take this "natural stuff," but ended up being satisfied with the results. He claims he's not sure if it worked or if he just got better. Haha. But he felt better each time he took.one. I will purchase more for him. He had no drowsiness like he would with otc allergy meds. Take a look at my page to see over 100 real reviews from products I've purchased and tested here at Iherb!

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1 person found the following review helpful

Good combination - Quercetin with Bromelain.

Posted by Reviewer1877965 on Sep 23, 2012

Good combination - Quercetin with Bromelain. I use only 2 pills a day, as i take it together with Resveratrol. When i used same ingredients (Quercetin with Bromelain, Resveratrol from different brands) last time - some vascular asterisks disappeared.

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2 people found the following review helpful


Posted by Reviewer27139998 on Aug 20, 2012

good for building vessels

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3 people found the following review helpful

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