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Source Naturals, Activated Quercetin, 200 Capsules

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In Stock
  • Expiration Date: Feb 2020
  • Shipping Weight: 0.53 lbs (0.24 kg)
  • Product Code: SNS-01691
  • UPC Code: 021078016915
  • Package Quantity: 200 Capsules
  • Dimensions: 2.9 x 2.9 x 5.3 in, 0.45 lbs (0.2 kg)
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.

Supplement Facts
Serving Size: 3 Capsules
Servings Per Container: 66
  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

This product works well

Posted by 4961489026048168980 on Jan 02, 2017

This product is great for lowering histamine levels with no side effects. I have tried many other products but always keep coming back to this one because it works and feels good at the same time.

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Dr Best is more effective

Posted by 5663902879973917162 on Dec 26, 2016

I was extremely dissappointed with this product. Does not work nearly as effective as dr best brand

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Posted by 5342796546261963391 on May 18, 2016

this is awesome for high levels of histamines..it made my itchy skin go away i only take 2 a day in between meals .....

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Not sure if it does anything

Posted by Reviewer2625092 on Feb 07, 2015

I can't say for sure that I noticed any difference when using this product. I have Graves disease and saw it recommended somewhere. I may not have taken it as consistently as was needed. In any case, it didn't seem to bother me in any way to take it.

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Posted by 5116466374877397559 on Oct 28, 2013

Antioxidante, activa el sistema inmunitario, inhibe el crecimiento de las células cancerosas. Se toma en combinación con los hongos hongos como el Shiitake, el Reishi o el Maitake. Mejora su absorción.

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