QUERCETIN 500 mg – Protector of Capillary Blood Vessels for Cardiovascular Health, Helps in Allergies and Supports Immune System

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Quercetin is an essential flavonoid that forms the “backbone” of many other flavonoids including citrus flavonoids, rutin, hesperidin, narigin and tangeritin. Quercetin is the most active of the flavonoids and many of the medicinal plants owe their properties to the presence of Quercetin.

Quercetin has strong anti-inflammatory properties by inhibiting the initial inflammatory processes. Inhibits the production and release of histamine and other allergic / inflammatory mediators. That is why it is used with good results in the treatment of Arthritis, Rheumatoid Arthritis, Osteoarthritis. In addition, Quercetin has antioxidant protective effects of Vitamin C.

Quercetin also has remarkable anti-tumor properties, especially for skin and prostate cancers.

Quercetin may have positive effects in the fight against and prevention of Cancer, Prostatitis, Heart Disease, Cataracts, Allergies and Respiratory Diseases such as Bronchitis and Asthma. Due to its anti-allergic character, it is an adjunct in the treatment of allergic sinusitis.


Ingredients / capsule:

Quercetin dihydrate (providing 500 mg quercetin) 568,18 mg
Capsule: hydroxy-propyl-methyl-cellulose, purified water
Filler: microcrystalline cellulose
Emulsifiers: fatty acids, magnesium salts of fatty acids
Anti-caking agent: silicon dioxide

Does not contain: dyes, preservatives or artificial sweeteners, dairy products, starch, sugar, wheat, gluten, ferments, soy, corn, eggs, fish, seafood, animal products, salt, nuts, or GMOs.

Suitable for vegetarians and vegans.

Net weight e = 47.88 g.


Recommended way of use (for adults): 1 capsule twice daily with meals, or as directed by your health care practitioner.


  • Consult a health care practitioner for an administration longer than 12 weeks.

Warnings and precautions:

  • Consult your specialist before use if you are pregnant or breast-feeding.
  • Do not exceed the recommended dose for daily consumption.
  • Dietary supplements do not replace a varied and balanced diet and a healthy lifestyle.


Factors Group of Nutritional Companies Inc., 1550 United Boulevard, Coquitlam, British Colombia V3K 6Y2 – CANADA

IsuraTM is a registered trademark of Isura.

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*The results may vary from person to person, it is not mandatory to get the promised results mentioned on the site, or those already obtained by the persons who submitted their testimonials.