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Quercetin Introduction

Quercetin, a water-soluble plant pigment, is part of a family of natural compounds called Bioflavonoids found in fruits and vegetables, but highest levels are found in apples and onions. People use quercetin as medicine.

Where are Quercetin extracted from?

Quercetin is a flavonoid antioxidant found in pigmented fruits and vegetables. Berries, onions, grapes and apples all provide good dietary sources of quercetin.

Quercetin Specification(COA)

American Warehouse

It saves your money and time to ship goods from USA warehouse.

Detailed address: 1901 S. Lynx Place, Ontario, CA 91761

Quercetin Benefit and Dosage

1. Prostatitis

Quercetin has anti-inflammatory and antioxidant effects and may reduce pain and inflammation of the prostate.

Recommended Dosage —— 1,000 mg per day

2. Hypertension

Studies show that quercetin supplementation reduces blood pressure in people who have mild high blood pressure.

Recommended Dosage —— 730mg quercetin in two divided doses

3. Exercise-induced respiratory infections

In one study, prolonged (over a week at minimum) supplementation of quercetin significantly reduces the number of upper respiratory tract infections in cycling athletes following intensive exercise.

Recommended Dosage —— For athletes who will have intensive exercise, 500 mg twice a day, beginning three weeks before and continuing for two weeks after.

4. Allergies and Sensitivities

Many of the effects of allergic reactions are caused by the release of histamine, chemicals that cause allergic reactions. In test tubes, quercetin prevents immune cells from releasing histamines. On that basis, researchers think that quercetin may help reduce symptoms of allergies, including runny nose, watery eyes, hives, and swelling of the face and lips. However, there is no evidence yet that it works in humans.

*The Content here is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician with any questions you may have regarding a medical condition.


Product packaging





By Express By Air By Sea
Suitable for under 50kg
Fast: 7-15 days
High cost
Door to door service
easy to pick up the goods
Suitable for more than 50kg
Fast: 7-15 days
High cost
Port to port
professional broker needed
Suitable for more than 500kg
Slow: 7-45 days
Low cost
Port to port
professional broker needed

How To Buy Quercetin

Paypal(Suitable for under 500USD) Western Union(Suitable for under 5000USD) Bank Transfer(Suitable for all amount)
15% charges
Arrive time: immediately
Easy to handle
Reasonable bank charges
Arrive time: immediately
Easy to handle
Reasonable bank charges
Arrive time:2-3 work days
Easy to handle

Quercetin Manufacturers And Laboratory Shows

Quercetin factory

With an investment of 80 million RMB, the construction of the factory started from 2012 and was finished at 2014. There are three production lines that meet the GMP standard in our factory which can process 6,000 ton raw materials each year with production of 900 ton plant extract. Our factory has been issued with the GMP certificate by China Food and Drug Administration in the year 2014.

Quercetin manufacturer GMP Production Line

Plant extract testing laboratory

Due to the complexity of plant extract and the deficiency industrial standards, one of our founders established a professional testing lab with an investment of 15 million RMB in 2014. The laboratory is equipped with five High performance liquid chromatography, one Gas Chromatograph, one Atomic Absorption Spectrometer, one Liquid mass spectrometry, one TLC scanner, one Automatic polarimeter, one Infrared Spectrometer, one Automatic melting point apparatus, one Mold incubator, one UV-visible spectrophotometer, one Portable Pressure Steam Sterilizer, one Single clean bench, one Explorer quasi-microbalance, one Electronic balance, and one Experimental resistance furnace.

Our Mission And Philosophy

Where to buy Quercetin? Where to find good Quercetin Manufacturers and Quercetin suppliers? Where can i Looking for Quercetin purchase? Where can i purchase Quercetin price and where to get Quercetin for sale? Is that the very question that lingers in your mind every time you do purchasing? Well, that should not be your headache any longer since we are committed to help you get rid of it completely. We can provide you with the safest and most effective Quercetin. To ensure the quality of any products that you buy on your platform, we have signed an investment and cooperation agreement with Natural Medicine Public Technical Service Platform, the largest and most professional third-party testing agency in China. Any extract you buy will have to pass the test of our strategic partner before delivery.
To ensure that the production process is under our control, we have built factory of our own, what’s more, we have bought the most shares of several high-quality manufacturers. From raw material selection, to every specific production procedure, to the storage of every kind of product, every detail is under the inspection of our specialists with at least ten years’ experience.