header_search header_signed-out header_signed-in header_cart sharefilled circlex
Added to Cart
Cart Total:
Customers Also Bought:
24/7 Help

Source Naturals, Activated Quercetin, 200 Tablets

$49.35 $49.35 (Saved $21.15)

Thank you!

Your email is being processed.

Source Naturals, Activated Quercetin, 200 Tablets

Click to zoom
Our Price:
You Save:
$21.15 (30)
Quantity Discount:
Buy 3+
(5% off)

Sorry, this product is no longer in stock.

Earn 5% Loyalty Credit ?
Combo Discount

Sorry, this product is no longer in stock.

Source Naturals, Activated Quercetin, 200 Tablets

In Stock
  • Expiration Date: June 2021
  • Shipping Weight:
    0.65 lbs
    Switch to Metric units
  • Product Code: SNS-00101
  • UPC Code: 021078001010
  • Package Quantity: 200 Tablets
  • Dimensions:
    2.6 x 2.6 x 5.1 in, 0.55 lbs
    Switch to Metric units

Product Rank:

Frequently Purchased Together
Product Overview


  • Dietary Supplement
  • Bioflavonoid Complex
  • Suitable for Vegetarians

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, while 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.

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.


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.

Supplement Facts
Serving Size: 3 Tablets
Servings Per Container: 66
  Amount Per Serving %DV
Calories 5  
Total Carbohydrate 1 g <1%*
Vitamin C (as ascorbic acid) 788 mg 1,313%
Magnesium (as magnesium citrate) 50 mg 12%
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

Great for Allergies

Posted by iHerb Customer on July 16 2017 | Verified Purchase

I purchase these for my own allergies and for a dog who has allergies. They have helped but not eliminated my respiratory allergies. They have completely eliminated my dog's skin allergies.

Thanks for your feedback!

Excellent Product

Posted by iHerb Customer on May 23 2017 | Verified Purchase

I use Activated Quercetin everyday to help drain my sinuses. It works very well and prevents me from getting sinus headaches. Besides that, it's good for you and even includes Vitamin C. I use Activated Quercetin instead of over-the-counter meds for allergies.

Thanks for your feedback!


Posted by iHerb Customer on July 7 2014 | Verified Purchase

Did not work for me :(

Thanks for your feedback!

Activated QuercetinRutin + Rutin

Posted by OssieA on August 12 2013 | Verified Purchase

I take this product along with rutin 3 times daily and it stops my legs from aching and makes them feel normal again.

Thanks for your feedback!

Excellent product

Posted by iHerb Customer on February 1 2013 | Verified Purchase

I am using this to decrease my histamine levels, as i have mast cell activation disorder; a condition that is often associated with POTS (postural orthostatic tachycardic syndrome) and this has been useful as an adjunct to my anti histamines, and i am taking less antihistamine as a result; with less side effects.

Thanks for your feedback!