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Thorne Quercetin Phytosome

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What we think

When people tell you to eat dark leafy greens and purple vegetables, this is because of the flavonoids they contain (antioxidant pigments giving color to plants). Quercetin is the most abundant flavonoid found in plants, nuts and other naturally occurring food sources, such as honey.

It is not often recommended by health care professionals as a key supplement because of its low absorption levels when taken by itself. However, Thorne ’s Quercetin Phytosome is combined with sunflower-sourced phospholipids to create a phytosome complex that can easily cross the gut barrier. Taking quercetin will boost antioxidant powers in your body from all angles, including reducing damage to fats, boosting glutathione levels, increasing antioxidant blood levels, blocking histamine (allergic reactions) and stabilizing mast cells (immunity).

With these capacities and more, quercetin is effective in protecting brain and gut cells, aiding in digestion and cardiovascular health, and is known to be a highly sought after anti-aging supplement.


Take 1 capsules daily with meals or as recommended by your performance professional.

What's Inside

  • Gluten Free

Nutrition Facts For Thorne Quercetin Phytosome
(60 Capsules)

Serving Size: 1 Capsules
Servings Per Container: 60

Amount Per Serving
% Daily Value*

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Ingredients for Thorne Quercetin Phytosome (60 Capsules): Quercetin Phytosome (Sophora japonica extract (flower) / Phospholipid complex from Sunflower) 250 mg Other Ingredients: Leucine, Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Silicon Dioxide.

Questions & Answers

Reviews for Thorne Quercetin Phytosome

Customer Reviews
4.8 Based on 26 Reviews
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Lynne C.
I recommend this product
Five Stars

Quercitin is wonderful for allergic reactions. PC addition works well for neurotransmitter balance...

Kaden N.

Take this for your allergies with some vitamin C. My body is tolerating it well with no negative reactions such as headache or congestion. It is hard to say if it is actually helping -- there are so many variables -- but I will keep on taking it since I'm feeling pretty good with my allergies this year so far.

Bernie U.

Bought for my mom who needs this for allergies. She likes it.

Cristal J.

This is a great alternate to antihistamines. We don't have any of the drowsy side effects of the regular medicine. I highly recommend it.

Dan I.

This product has done wonders for my allergic reactions. Highly recommend!

Amelie L.

Really helps my problematic liver. I feel better, digest my food better when I take it.

Bailey H.

Works pretty well at controlling my allergy symptoms

Justin O.

I have severe allergies, where my sense of smell will lock down and produce a "phantom smell" which is cigarette smoke. Nasty, and when it has come and lasted for several weeks, it has nearly driven me insane. My chiropractor put me onto this stuff, and I take it with HMC Herperidin for the phantom smell. It helps build up my antibodies to the allergies, and it works so well. Every time I have an episode I take these three times a day, and it is usually gone in 2 days. Fantastic stuff.