Customize Your Shopping Experience!

Please select the destination country, language, and currency you prefer.

Available Shipping Methods
Available Payment Methods
Added to Cart
Combo Discount:
View/Edit Cart Checkout
Cart Total:
Customers Also Bought:

Source Naturals, Activated Quercetin, 100 Capsules

By Source Naturals

Our Price:
You Save:
$16.33 (46%)
  • Volume Discount
  • Buy 4+
    Save 5%
Earn 10% Loyalty Credit ?

This product is already in your Wish List.

View Wish List

This product is now in your Wish List.

In Stock
  • Product Code: SNS-01690
  • UPC Code: 021078016908
  • Package Quantity: 100 Capsules
  • Dimensions: 2.4 x 2.4 x 4.3 in, 0.25 lbs (0.11 kg)
Bundle Offer
Save $2.04 when you purchase these items today for only $23.08


Combo Discount:



- $2.04


Product Overview

  • 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 capsules daily in divided doses, between meals. If you have a delicate, easily irritated stomach, take with meals.

Other Ingredients

Gelatin (capsule) 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.

Visit Manufacturer's Website
Supplement Facts
Serving Size: 3 Capsules
Servings Per Container: 33
  Amount Per Serving %DV
Vitamin C (as magnesium ascorbate) 600 mg 1,000%
Magnesium (as magnesium ascorbate) 49 mg 12%
Quercetin 1 g
Bromelain (2,000 G.D.U. per gram)†† 300 mg
†Daily Value not established.
††GDU is a standard measure of activity for bromelain.

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars

Source Naturals Quercetin

Posted by Reviewer2735952 on Jan 12, 2011

This is the most effective natural antihistimine I have found.

Was this review helpful to you?

5 people found the following review helpful

Source Naturals'Products

Posted by Reviewer2571788 on Aug 13, 2010

I have been a consumer of Source Naturals products for many years. I have used Activated Quercetin for just as many years. I take it everyday. I used it for the first time when I had developed a mold allergy, then for a rotator cuff injury. For the past several years, I have used it to relieve the pain of arthritis. I truly believe it is a great product.

Was this review helpful to you?

4 people found the following review helpful


Posted by BrendaYoumans on Aug 04, 2010

The capsules are the best because of no added stuff in it. It helps with Allergies and some stomach issues.

Was this review helpful to you?

3 people found the following review helpful

love this formula

Posted by Reviewer2965916 on Jan 19, 2012

an important part of my anti inflammatory supplements. It really supports my immune system during allergy season and helps me fight off the flu

Was this review helpful to you?

3 people found the following review helpful

One of my favorite supplements!

Posted by erichards on Aug 21, 2012

This is a high quality brand that absorbs well, for effective anti-inflammatory relief of symptoms especially seasonal allergies. I take it every day to additionally counteract the effects of less than ideal foods on my system.

Was this review helpful to you?

3 people found the following review helpful

See All Reviews