Immune Support Dietary Supplement Quercetin is a flavonoid antioxidant that has been shown to have immune-supportive properties. It has been suggested to support the immune system by increasing the production of antioxidants that help protect the body against oxidative stress and cellular damage. Quercetin may also stimulate the production and activity of certain immune cells, such as natural killer cells and T cells, which help to fight infections and support the overall function of the immune system. Studies have also shown that it may aid in promoting gut health, which is an important component of a healthy immune system. Quercetin also supports respiratory health by supporting a healthy response to inflammation in the airways and lungs. It has been shown to have potent anti-inflammatory and antioxidant effects, which can be critical in supporting airways and lungs that are under stress or attack. Quercetin may also help to improve the function of the epithelial barrier in the respiratory tract, reducing the risk of irritants from entering the lungs.
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Immune Support Dietary Supplement Quercetin is a flavonoid antioxidant that has been shown to have immune-supportive properties. It has been suggested to support the immune system by increasing the production of antioxidants that help protect the body against oxidative stress and cellular damage. Quercetin may also stimulate the production and activity of certain immune cells, such as natural killer cells and T cells, which help to fight infections and support the overall function of the immune system. Studies have also shown that it may aid in promoting gut health, which is an important component of a healthy immune system. Quercetin also supports respiratory health by supporting a healthy response to inflammation in the airways and lungs. It has been shown to have potent anti-inflammatory and antioxidant effects, which can be critical in supporting airways and lungs that are under stress or attack. Quercetin may also help to improve the function of the epithelial barrier in the respiratory tract, reducing the risk of irritants from entering the lungs.
SKU
3-130037
Brand
Quantum Health
Category
health / supplements / categories / antioxidants
Variants
1
Customer reviews
5.0
verified purchase
Excellent
I have an allergy issues, hives and a possible MCAS. Purchased as alternative of cromolyn and I can feel the benefits already. Also noticed that makes me more calm and positive. But only one capsule daily, noticed that two makes me too sensitive.
I give it to my teen son too and I can see that it calms his acne issues, his skin got cleaned.
This not contain bromelain so it is a great option if you have some concerns about it because of pollen allergy.
12/5/2023
5.0
verified purchase
Super quercetin, they've changed the dosage, but for the better. It's effective at reducing allergy symptoms and provides antioxidant protection. The vitamin C and zinc in the formula also support immunity.
3/12/2026
5.0
verified purchase
Really pleased with this quercetin blend
Really pleased with this quercetin blend — the added vitamin C and zinc make it a solid all-in-one immune support supplement. No stomach upset and easy to incorporate into my routine
9/24/2026
5.0
verified purchase
Help for the body
Excellent product quality and great benefits. Quercetin is an antioxidant that fights inflammation and allergies, and improves vascular health and heart function. Take 1 capsule daily with or after meals.
5/16/2026
5.0
verified purchase
Improve nasal allergies
It significantly improved my nasal allergy symptoms after use, much better than taking medicine.
3/10/2026
5.0
verified purchase
quercetin
I use quercetin with bromelain also from quantum health. Great enzymes for digestion plus. Great quality and price.
12/20/2025
5.0
verified purchase
Nice quality ingredients. Size of the package is enough to feel the benefits.
9/5/2025
5.0
verified purchase
For histamin intoleranse
Take this when I feel my immunsystem needs an extra push.
6/23/2025
5.0
verified purchase
ok
Good quality. My family like it very much. I will buy again!!
4/4/2025
5.0
verified purchase
great
I feel good when taking this but still not sure if its from this product or just a placebo. Will keep trying
