• No Sales Taxes
  • Free No-Hassle Returns
  • All Products 100% Guaranteed
  • Fast Free Shipping On All Orders

M-F 9-10 EST Hablamos Español
Orders placed before 5 PM EST ship the same day FREE SHIPPING on all orders Details

Quercetone® 60 Vegetarian Capsules

Item # TR1181
Our Price: $27.90
Free Shipping Included for all US addresses and territories
Bioflavonoid Complex 100 Tablets
Regular Price: $13.50
Our Price: $9.90
See Details
Niacinamide 500 mg 100 Capsules
Regular Price: $9.00
Our Price: $6.60
See Details
Quercetin 120 Vegetable Capsules
Regular Price: $34.50
Our Price: $34.50
See Details
Quercetone® 60 Vegetarian Capsules
Quercetone® 60 Vegetarian CapsulesQuercetone® 60 Vegetarian CapsulesQuercetone® 60 Vegetarian CapsulesQuercetone® 60 Vegetarian CapsulesQuercetone® 60 Vegetarian Capsules

Product Q & A
MFG # SB330
UPC # 693749330028
Official Website: http://www.thorne.com

Quercetone® is Thorne Research’s patented‚ well-absorbed form of quercetin‚ which is water-soluble to promote superior absorption. Quercetin is a potent antioxidant flavonoid that has been known to stabilize mast cells that store and release histamine‚ while also supporting heart health.

What is Quercetin?

Quercetin is the most abundant of the flavonoid‚ and it is commonly found amongst members of the plant kingdom. In fact‚ you’ll find quercetin in many foods that are probably part of your daily diet‚ such as onions‚ berries‚ nuts‚ seeds‚ apples‚ teas‚ and vegetables like cabbage. This might give validity to the theory that quercetin is an essential component of activity within many plants.

What are the Health Benefits of Quercetin?

Studies have indicated that quercetin may have various beneficial effects on your health; these include gastrointestinal and cardiovascular protection. Researchers believe that many of quercetin’s beneficial effects are due at least in part to its powerful antioxidant activity. As soon as it is absorbed by the body quercetin gets to work scavenging free radicals and inhibiting oxidation. On its own and when paired with vitamin C‚ quercetin has been shown to reduce the oxidative damage to skin and nerves that can be caused by depleted levels of glutathione.

Quercetin is believed to decrease inflammation by inhibiting key enzymes that produce inflammatory mediators. That’s why it’s sometimes used for mild pain relief. Meanwhile‚ some holistic practitioners use quercetin to counter allergic reactions because it inhibits the enzymes that are responsible for producing inflammatory mediators‚ as well as those that promote histamine production.

The Thorne Research Difference

Even though all flavonoid molecules have similar chemical structures‚ small molecular changes can drastically change their properties. With just small molecular changes‚ these flavonoids can take on varying levels of solubility‚ activity and affinity for certain tissues.

Quercetone by Thorne Research is better absorbed by the body‚ allowing you to experience all the great benefits of this flavonoid. Each bottle contains 60 vegetarian capsules.

Thorne Research strives to provide pure‚ high-quality supplements to people looking to enhance their health and well-being. Its products are commonly used in prestigious research studies‚ and are recommended by many doctors and health care practitioners. The company always goes the extra mile to ensure that Thorne Research dietary supplements are safe and effective for immune-compromised‚ allergic‚ and chemically sensitive patients.

These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.

Serving Size: One Capsule

Amount Per Serving / % DV

Quercetin (water-soluble) 250mg / *

*Daily Value (DV) not established.

Other Ingredients: Hypromellose (derived from cellulose) capsule‚ microcrystalline cellulose‚ silicon dioxide.

Take 1 capsule three times daily with meals or as recommended by your healthcare practitioner.

If pregnant‚ consult your healthcare practitioner before using this product. Use only if bottle is sealed. Store tightly sealed in a cool‚ dry place.

Quercetone 60 Vegetarian Capsules
4.5 Stars based on 16 Review(s)
Dead Cat, AZ
1/5 Stars

Causes pain in IC sufferer
October 25, 2013
I have no idea what Thorne adds that makes them brand this product "Quercetone" rather than quercetin, but it aggravates my interstitial cystitis bladder pain. Normally quercetin reduces this pain for me...
Aggravates interstitial cystitis pain.

4/5 Stars
I would recommend this item to a friend.

works for me
September 19, 2013
I ordered Quercetone for my allergies and it seems to be working better than the over-the-counter medication I was taking with out the side effects. I will be ordering Quercetone again.
does not make me jittery. Cost effective.

5/5 Stars
I would recommend this item to a friend.

Use Quercetone to recover from and prevent sinus infections.
September 14, 2013
I originally ordered Quercetone when my naturopath recommended I get it to help recover from a sinus infection. It worked so well she suggested I continue with it as a preventative measure. I have not had a sinus infection since.

atlanta, ga
5/5 Stars
I would recommend this item to a friend.

geat product
August 25, 2013
I have been using Quercetone for three years love it.

4/5 Stars
I would recommend this item to a friend.

its nice & bright
August 22, 2013
I order Quercetone for my 12 yr old son. Quercetone was recommended to him by a naturalist (MD) for his allergies.
That it is natural and goes thru the system easily
You have to take them more than once a day

Cheshire, CT
5/5 Stars
I would recommend this item to a friend.

April 3, 2013
Great product. Helps so much with sinuses - Naturopathic Doctor recommended it.

Eureka Springs Arkansas
5/5 Stars
I would recommend this item to a friend.

Reduces Inflammation
November 10, 2012
Quercetone is a Great product! It has not only helped with GI and muscle inflammation, but it also works well to reduce sinus pressure!

kirkland wa
5/5 Stars
I would recommend this item to a friend.

not sure what you reguest
June 4, 2012
first given to my dog by his vet.less itching with Quercetone by Thorne Research
Seems to help my dog

San Francisco, California
5/5 Stars
I would recommend this item to a friend.

Great Product
April 3, 2011
Thorne makes a quality line of supplements. I give quercetone to my dog during allergy season and it really helps as an antihistamine. She suffers environmental allergies in the early Spring well into Fall and when on quercetone, she scratches so much less.

Rochester, NY
5/5 Stars
I would recommend this item to a friend.

Quercetone 60
March 28, 2011
I have just started taking this nutrient on a daily basis, so I do not yet know if there will be any adverse side effects, etc. After reading several books by reknowed neurologists (Ahmed, Blaylock) who mentioned the benefits of Quercetone, I decided to add it to my morning and afternoon regimen to build up my immune system and supplant my body with beneficial antioxidants.
small capsule

5/5 Stars
I would recommend this item to a friend.

Quercetone Thorne Research
March 26, 2011
Good product.
No stearates
Nothing so far

Saratoga, NY
5/5 Stars
I would recommend this item to a friend.

significantly helps with airborne allergies
March 8, 2011
our son has had terrible allergies, both food and airborne related. our applied kinesiologist recommended Quercetone to help him with the airborne allergies and it does a fantastic job of keeping him from getting congested in all of the high allergy seasons

Douglasville, GA
5/5 Stars
I would recommend this item to a friend.

The only thing that works for me
January 29, 2011
I have discontinued using antihistamines, Mucinex, Zyrtec, and Claritin for my allergies since a friend suggested trying Quercetone. Two capsules in the morning and I'm breathing clearly within an hour for the rest of the day. On particularly bad days I will take an additional two caps later on if I start to feel stuffy again, but the difference between your product and any of the old chemical remedies is remarkable. I'm certain it's better for my liver and overall health and this really works! I have recommended it to all of my friends with sinus/allergy difficulties. I used chemical remedies for years, but never again!
It WORKS and doesn't have side effects.
No one has ever heard of it- you need to get the word out mass-marketing style and give people a healthier choice! Put the chemicals away for good!

5/5 Stars
I would recommend this item to a friend.

Helped my allergy symptoms!!
December 27, 2010
Quit taking Zyrtec and started taking Quercetone with the instruction from my holistic physician. I do not have the allergy symptoms and I feel so much better.

5/5 Stars
I would recommend this item to a friend.

Medium clear capsule
December 17, 2010
No side effects taken with other Thorne products and jigsaw products
Can see what I'm taking

kodak, tn
5/5 Stars
I would recommend this item to a friend.

Excellent company!!!
October 25, 2010
I order quercetone as per our holistic vet for my dog with sinus issues. PureFormulas has excellent prices coupled with free shipping and lightening fast shipping! I always get it within a few days of when I order it!
Prices Free Shipping FAST shipping

We don't share or sell your information. EVER.
Read our privacy policy.

PureFormulas stands behind the
authenticity of everything we sell.

PureFormulas has made it our mission to
provide you with an outstanding selection
of health and beauty products at highly
competitive prices.

Read our guarantee

Domestic orders placed by 5 PM Eastern
Time will be packed and shipped
the same day, pending verification of billing
information and the shipping method
selected. Orders containing out-of-stock
items or refrigerated items will be
processed as quickly as possible, but
won't necessarily be shipped out the same day.

Excludes all orders placed during
weekends and on major US holidays
(Memorial Day, Independence Day, Labor
Day, Thanksgiving Day, Christmas Day
and New Year’s Day).

Read our shipping policy