Natural Factors Quercetin 500 mg 60 Capsules

$26.99 CAD

Natural Factors Quercetin 500 mg 60 Capsules

$26.99 CAD

SKU: 1390NF

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Plant-enhanced immune support

Natural Factors Quercetin 500 mg provides a concentrated source of the antioxidant quercetin, a potent bioflavonoid found in certain fruits, vegetables, and herbs. Quercetin is used in herbal medicine as a blood vessel protectant and supports cardiovascular and immune health. It is an effective supplement for adults who want to protect against oxidative stress and relieve seasonal allergies.

Uses & Benefits

  • Provides a source of antioxidants
  • Used in herbal medicine as a blood vessel protectant for cardiovascular health
  • Provides allergy relief and immune support
  • Helps combat free radical damage and reactive oxygen species
  • Protects against oxidative stress

Medicinal Ingredients

Each vegetarian capsule contains:  
Quercetin (bioflavonoids) 500 mg

Suggested Use

  • A factor in the maintenance of good health. 
  • Source of antioxidants. 
  • Helps to support immune function. 
  • Helps in energy metabolism and tissue formation. 
  • Helps maintain healthy skin and connective tissue formation. 
  • Helps to produce and repair connective tissue. 
  • Helps to maintain healthy bones, hair, nails, and skin. 
  • Helps to maintain the body’s ability to metabolize nutrients. 
  • Helps to form red blood cells. 
  • Helps to maintain normal iron transport in the body. 
  • Helps to prevent zinc deficiency. 
  • Source of minerals to support biological functions, which play a key role in the maintenance of good health.

Recommended dose

Recommended adult dose: 1 capsule once daily with food, a few hours before or after taking other medications, or as directed by a health care practitioner.
Consult a health care practitioner for use beyond 12 weeks

Advanced Info

Natural Factors Quercetin 500 mg is a potent antioxidant supplement that protects against oxidative stress and is used in herbal medicine as a capillary and blood vessel protectant. Quercetin is a bioflavonoid found in many vegetables, fruits, and herbs. Increased intake helps support cellular health throughout the body by counteracting unstable free radicals, provides seasonal allergy relief, and may support immune health.

Bioflavonoids such as quercetin help maintain optimal health. Not only are they essential for proper utilization of vitamin C, but they also play important roles in defending the body against the reactive oxygen and nitrogen species that are generated from internal cellular processes and exposure to toxins and foreign agents in the environment.

Natural Factors Quercetin 500 mg contains an effective source of antioxidants and is specially developed to maintain cellular and cardiovascular health. Each vegetarian capsule contains 500 mg of quercetin to be taken 1–2 times per day. It contains no preservatives, sweeteners, gluten, or GMOs, and is suitable for vegetarians. Quercetin is a great choice for anyone who wants to take a plant-based approach to self-protection and is a key addition to any health defence toolkit.


Consult a health care practitioner prior to use if you are pregnant or breastfeeding. Keep out of the reach of children.

Allergen Statement

Contains no artificial colours, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs. Suitable for vegetarians/vegans.