Source Naturals

Activated Quercetin

Expiry 1st Feb 2026

A potent polyphenol delivering antioxidant activity across multiple body systems for comprehensive full-body health – from allergen support to cardiovascular health.

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Product overview

Embrace the outdoors with confidence again with Source Natural’s Activated Quercetin, an advanced complex containing 1000mg of quercetin in every serve – a potent antioxidant supporting the body’s response to seasonal allergens. Quercetin, a naturally occurring plant compound, is perhaps best know for its role in supporting immune health, helping balance the body’s histamine response to allergens. However, this is no one-trick pony! Quercetin is a highly studied molecule for health and contributes potent antioxidant support for all areas of human health, from the immune and allergen response to brain and neurological function, liver health and cardiovascular system support.  

  • Potent bioflavonoid complex for seasonal and immune support
  • Well-studied molecule for health with activity across multiple body systems from the brain, to the heart and liver
  • 1000mg quercetin per serve alongside key bioactivating ingredients bromelain and vitamin C
  • Economical 2-month supply sizing 
  • Vegetarian friendly, low allergen formula
Why choose Source Natural’s Activated Quercetin?

Activated Quercetin delivers a powerful 1,000 mg dose of quercetin per serving, offering a high-potency bioflavonoid complex to support the body’s natural allergen response and immune defences. This well studied molecule is known for supporting the stability of mast cells, helping the body respond calmly and appropriately to everyday allergens.

Mast cells are specialised immune cells that store histamine, a compound involved in the body’s response to allergens. When these cells become overactive, they can release too much histamine, leading to common signs associated with seasonal or environmental triggers such as sneezes, watery eyes or a runny nose. By helping to support healthy mast cell stability, quercetin assists the body in maintaining a calm, balanced response to allergens to support overall comfort and well-being.

Key additional ingredients - like the enzyme bromelain derived from pineapple, magnesium citrate, and vitamin C - serve to activate and optimise quercetin’s benefits, in addition to delivering immune, respiratory, and antioxidant support. Together, these ingredients provide synergistic support for immune health, respiratory function, and antioxidant activity.

What is quercetin?

Quercetin is a bioflavonoid, a pigment found in many plants such as tea, apples, sweet potato, watercress, red onion, broccoli, black plums, and a number of berries. Just as bioflavonoids benefit plants, they have also been found to offer beneficial support for human health too.

How is this formula “activated?”

In Source Natural’s Activated Quercetin, the enzyme bromelain, from pineapples, is added for its synergistic co-operation with quercetin. The formula also benefits from the addition of vitamin C which studies suggest also works in partnership with quercetin to support its uptake and use by the body.

Ingredients

Vitamin C (as ascorbic acid) 700 mg, magnesium (as magnesium citrate) 50 mg, Quercetin 1 g, Bromelain (2,000 G.D.U. per gram) 300 mg. Other Ingredients: sorbitol, stearic acid, modified cellulose gum, silica, and magnesium stearate.

Does not contain: Suitable for vegetarians. Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no preservatives or artificial colour, flavour, or fragrance.

Suggested Use
Recommended intake:

Adults: Take 3 capsules 1 to 2 times daily in divided doses, between meals. For those with a delicate, easily irritated stomach, take with meals.

Cautions
  • If pregnant, nursing or taking medications, consult a healthcare practitioner prior to use.
  • Keep closed in dry place; avoid excessive heat.
  • Do not use if safety seal is broken or missing.
  • Keep out of reach of children.
  • Always read the label and use as directed. If symptoms persist see your healthcare practitioner.

About Source Naturals

Source Naturals® is one of America’s leading and longest standing nutritional supplement brands. Using the latest clinical research, their synergistic formulas use high-quality ingredients in bioavailable forms to make a real difference in people’s lives.”

Packaging & Ingredient Updates

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