Quercetin With Bromelain Supplement For Respiratory Health
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Quercetin Complex Supplement

Comprehensive quercetin formula with NAC, bromelain, stinging nettle, and vitamin C to support immune function, respiratory wellness, and healthy histamine response.†

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$38.71

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39.98

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Gluten-Free

 

Quercetin Complex Supplement Facts

Serving Size: 2  capsules
Servings Per Container: 60
Ingredients Daily
Amount
% Daily
Value
Vitamin C (as Ascorbic Acid USP) 300 mg 333%
Quercetin Dihydrate 400 mg *
Stinging Nettle (Leaves) 400 mg *
Bromelain (from Pineapple) 100 mg (240 GDU) *
N-Acetyl-L-Cysteine USP 50 mg *

*Daily Value not established.
Other ingredients: Hypromellose(Natural Vegetable Capsules), Magnesium Stearate, Silicon Dioxide and Stearic Acid.

This product is formulated to be free of allergens derived from: Gluten, yeast, artificial colors and flavors.

While we strive to ensure the label information on this site represents the label on the product available for purchase, products are updated from time to time. Please consult the label on the product you purchase for the most accurate ingredient and allergen information.

Item Number: 294
SKU: 816899000294
Formula: L-COO977-524120-A

What It Is

Quercetin is a plant-based flavonoid known for its antioxidant properties and support for immune and respiratory wellness.†

This advanced formula combines quercetin with bromelain, stinging nettle, N-acetyl-L-cysteine (NAC), and vitamin C to support healthy immune function, respiratory comfort, and overall wellness.†

Ideal for individuals looking for comprehensive seasonal, respiratory, and immune wellness support year-round.

Why This Formula

  • Features quercetin, NAC, bromelain, stinging nettle, and vitamin C
  • Includes NAC to support respiratory wellness and normal mucus funtion†
  • Multi-ingredient approach for immune and respiratory wellness support†
  • Provides antioxidant and botanical support nutrients†
  • Vegetarian capsule format

How to Use:

Suggested Use: Take two (2) vegetarian capsules three times daily for the first 7-10 days. Thereafter, take two (2) capsules daily or as directed by your physician or health care provider.

  • 120 vegetarian capsules per bottle

How It Helps

Quercetin Complex combines quercetin, stinging nettle, bromelain, N-acetyl-L-cysteine (NAC), and vitamin C to support healthy immune function, respiratory wellness, and a balanced response to seasonal and environmental stressors.†

This comprehensive formula combines antioxidant, botanical, and enzymatic ingredients to support sinus and respiratory health, as well as overall wellness, throughout the year.†

Seasonal & Immune Support†

  • Supports healthy immune system function†
  • Helps support the body’s natural response to seasonal and environmental stressors†
  • Provides antioxidant support for overall wellness†

Respiratory & Sinus Support†

  • Supports healthy respiratory function†
  • Helps support normal mucus viscosity and respiratory comfort†
  • Supports sinus and upper respiratory wellness†

Healthy Histamine Response†

  • Quercetin and stinging nettle support a healthy histamine response†
  • Bromelain supports the body’s natural inflammatory response†
  • Supports overall environmental wellness and comfort†

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Customer Q&As

If you have questions, we have answers. See what real people are asking about Cooper Complete products.

9 Questions
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Q:

What is the best time of the day to take Quercetin Complex?

A:

Quercetin Complex can be taken at any time of day that fits your routine.† Because some of the ingredients, like quercetin and bromelain, are better absorbed with food, it’s recommended to take the supplement with a meal.† Taking it consistently each day helps support antioxidant and overall wellness benefits.† If you are sensitive to supplements on an empty stomach, taking it with a larger meal may help reduce the chance of mild stomach discomfort.†

Q:

My allergies are terrible. What’s the best way to get started taking Quercetin Complex?

A:

We suggest that for the first 7-10 days, two capsules be taken three times per day (for a total of 6 capsules per day). After that, take 2 capsules per day or as recommended by your health care professional.

Q:

Does quercetin help with allergies?

A:

Quercetin is a plant flavonoid that may help support a healthy immune response by stabilizing mast cells†, which play a role in the body’s response to environmental triggers.† Vitamin C is included in the Quercetin Complex to further support immune health.†

Q:

Is it true that quercetin can impair iron absorption?

A:

Quercetin is a polyphenol found in abundant quantities in apples, citrus, onions, green leafy vegetables, coffee, and tea. Studies show coffee and tea can inhibit iron absorption, particularly the non-heme form of iron found in plants and grains.  The recommendation for coffee and tea drinkers taking supplemental iron is to avoid these beverages for an hour before and after taking iron supplements. For this reason, we recommend taking Quercetin Complex separately from iron-containing supplements, such as standalone iron or multivitamins with iron.

Q:

Why was Quercetin Complex Supplement added to the Cooper Complete line of dietary supplements?

A:

Quercetin Complex Supplement was added to the line of Cooper Complete Nutritional Supplements to support immune health.† The suite of Cooper Complete Immune Health Supplements also includes multivitaminsomega-3 fatty acids, vitamin Cvitamin D3Turmeric Curcumin Complex, and the mineral zinc.

Q:

Does Quercetin Complex affect vision?

A:

Quercetin has been studied for its antioxidant properties and cellular protection, which may support overall eye health.†

Q:

Where does the Quercetin in Quercetin Complex come from?

A:

The Quercetin in Cooper Complete Quercetin Complex is derived from seeds and pods of the dimorphandra mollis deciduous tree.

Q:

Can this product be taken in conjunction with the prescription digoxin?

A:

Quercetin may interact with digoxin, a prescription heart medication. If you are taking digoxin, consult your physician before using this product.

Q:

Could Quercetin Complex Supplement help my blood pressure?

A:

While some research has explored the effects of quercetin on blood pressure, results have been mixed. A review and meta-analysis of seven trials found that taking 500 mg to 1,000 mg of quercetin daily reduced systolic blood pressure by approximately 3.04 mm Hg and diastolic blood pressure by 2.63 mm Hg, in people with and without high blood pressure.† Our product is not intended to diagnose, treat, cure, or prevent any disease.

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