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$ 19.95 (120 x 500 mg Quercetin, 100 mg Bromelain capsules)

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Allergen Notice:

  • Soy Free
  • Gluten Free
  • Non-GMO
  • Vegan

Buy Multiple Bottles and Save!

Quercetin Double Pack -- $34.95     Quercetin Triple Pack -- $49.95


  • SUPPORTS IMMUNE SYSTEM HEALTH - Quercetin is a potent antioxidant which may support the immune system.
  • SUPPORTS BLOOD GLUCOSE MANAGEMENT - Quercetin may help to maintain healthy cholesterol and blood glucose levels.
  • INCLUDES 100 MG BROMELAIN - Bromelain helps to improve the absorption of Quercetin and improves its effectiveness.
  • MADE IN THE USA - Our Quercetin is manufactured right here in the USA and is tested for purity and potency.


Quercetin is a heavily researched bioflavonoid which is found naturally in many fruits and vegetables, although levels are highest in apples and onions. Our Quercetin includes 100 mg of Bromelain per capsule to help improve Quercetin’s absorption.

Quercetin is a potent antioxidant and is believed to help support healthy blood glucose management and immune system health. Quercetin has also been shown to be a zinc ionophore, and when taken with Zinc it can help increase intracellular zinc levels.

Recommended Dosage

We recommend a dosage of 1000 - 2000 mg per day, or 2-4 capsules. As Quercetin is fat soluble, it is best taken with meals. We do not recommend exceeding 6 capsules per day.

Quercetin Side Effects

Quercetin is very well studied and is non-toxic with few side effects when taken orally at normal doses. The only commonly reported side effects from oral use of Quercetin are headaches and tingling, and these are more common at high doses.

Quercetin  -   $ 19.95  (120 x 500 mg Quercetin, 100 mg Bromelain capsules)

Product ratings
Number of reviews : 10
Average rating : 5 /5
I have been using quercetin with bromelain for a long time and have used many different brands. This brand seems to be very good and high quality.
Fair price, highly rated on Amazon
Quercetin is a great supplement for increased immunity and better overall health. The Doublewood Quercetin is highest quality and highly recommended.
It’s ok
Works to facilitate zinc uptake per its reputation. Very satisfied.
we feel that the quercetin we received is a high quality product for a very reasonable price.
I have allergies and asthma. I heard that this combination of Quercetin with Bromelain was very effective in keeping allergy symptoms under control. This stuff works! I set myself up for auto-delivery so that I never run out. I've had less congestion and sneezing since I began taking this product. I highly recommend it.
I no longer have severe allergy problems as a result of using Quercetin. If I miss a dose my crummy symptoms are there but I take 2 and in no time I'm not congested. Best product I've ever had for my respiratory issues.
Don’t know yet
Purchased as a proactive response to the upcoming winter, I want to be well armed with the antioxidant support Quercetin provides. In addition to that, Quercetin proposes to aid in purging senescent cells. Only time will tell as to its effectiveness.

* These reviews are the experiences of the individual customers that submitted them, results may differ from person to person.

Ordering from Canada?

Unfortunately we can't accept credit card payments from non-US credit cards through, but we've been working hard to make our products available in Canada and have a few options for Canadians to order.

Many of our products are available to purchase on, and are currently warehoused in Canada. If the products you're looking for are on, this will be the easiest and quickest way to order.

Alpha GPC


Bacopa Monnieri Extract


CDP Choline


Citrus Bergamot Extract




Huperzine A




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Rhodiola Rosea Extract


S-Acetyl L-Glutathione




Order by Email

Send us an email at with what you'd like to order, and we will send over an invoice from another of our websites that can take international credit card payments. Once the invoice is paid we will ship out your order promptly.