Bioflavonoid Complex with Quercetin

  • Botanical combinations and extracts
  • Category: Antioxidants & Cell Protectors
  • Category: Heart & Blood vessels
  • Category: Immune system
  • 120 vegetable capsules
Out of stock
EUR 29.95
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Bioflavonoid Complex with Quercetin by Klaire Labs

Bioflavonoid Complex with Quercetin combines quercetin, citrus bioflavonoids and rutin. This formula contains a balanced blend of bioflavonoids, including a standardized quercetin extract. Quercetin is a bioflavonoid nutrient derived from the extract of the flower bud pin of fava d'anta-tree, or Dimorphandra mollis. Quercetin is one of the many bioflavonoid nutrients; it is common in apples, onions, red cabbage, red grapes, raspberries, green tea, and garlic.

Contains citrus bioflavonoids and rutin

Bioflavonoids are also found in citrus fruits such as lemon and orange and promote the absorption of vitamin C. The second ingredient of this powerful formula is therefore the citrus bioflavonoids complex of the fruit of the Citrus aurantium, standardized to 50% citrus bioflavonoids. The third ingredient is rutin, as rutin trihydrate, obtained from an extract of the flower buds of the Japanese pagoda tree, or Sophora japonica.


  • Powerful formulation of various bioflavonoids
  • 500 mg of quercetin, 375 mg of citrus bioflavonoids and 150 mg of rutin per capsule
  • Contains no allergens (no gluten, casein, fish, shellfish, nuts, peanuts or soy)
  • Suitable for vegans and vegetarians
  • Contains no artificial colors, flavors and preservatives

What are Bioflavonoids?

(Bio) flavonoids are plant substances that occur in all kinds of fruits and vegetables. As pigments they color many fruits and vegetables. The substances play a role in the metabolism of plants, as growth regulators and in the protection against ultraviolet light, oxidation and heat. Bioflavonoids were discovered by Albert Szent-Györgyi, one of the leading biochemists of the early twentieth century. He was awarded the Nobel Prize in 1937 for the discovery and description of vitamin C. During the vitamin C isolation process, Szent-Györgyi also discovered bioflavonoids.

The term bioflavonoids, or flavonoids, was first used in 1952 by the German researchers Geissmann and Hinreiner. Over five thousand naturally occurring flavonoids have now been isolated from various plants. Flavonoids are the largest group of polyphenols.

About Klaire Labs

Klaire Labs™’s mission is to contribute to optimal health through premium-quality nutraceuticals. Klaire Labs™ develops products including innovative probiotics, enzymes and specialty nutraceuticals for gastrointestinal and immune support. They exclusively focus on healthcare providers aiming to optimally support their clients. The company is part of Soho Flordis International, a global natural health company. Klaire Labs™ products consist mainly of active ingredients selected for purity, bioavailability, proper documentation and safety features. Production is based on the guidelines for Good Manufacturing Practices (GMPs) and quality third-party certifications.

More Information
Product Name
Bioflavonoid Complex with Quercetin
Klaire Labs
120 capsules
User Instructions

Take 2 capsules, 1 to 2 times daily, with food or as directed by your healthcare practitioner.

Ingredients per Serving
Amount per 2 capsules% ADH
Quercetin (as quercetin dihydrate) (derived from fava d’anta tree) (Dimorphandra mollis) (flower bud extract) 500 mg **
Citrus Bioflavonoid Complex (Citrus aurantium) (fruit) (standardized to 50% citrus bioflavonoids) 375 mg **
Rutin (as rutin trihydrate) (derived from Japanese pagoda tree) (Sophora japonica) (flower bud extract) 150 mg **

** Daily value not established.

EU Norm
*RDA = Recommended Daily Allowance
Other Ingredients

Vegetarian capsule (hydroxypropyl methylcellulose, water) and L-leucine.

Storage: see label. Keep out of the reach of children. Consult an expert before use in case of pregnancy, breastfeeding, illness or medication.
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