A bottle of NatureSpan® Lung Support Quercetin Complex dietary supplement with capsules inside, labeled for supporting lung health.

Lung Support Quercetin Complex

Q: How is quercetin helpful for lung health?

Quercetin is a plant-based flavonoid known for its antioxidant and anti-inflammatory properties . In the lungs, it helps calm irritation, reduce oxidative stress, and support overall respiratory wellness.

Q: Who would benefit most from this supplement?

Anyone looking to strengthen their respiratory health may benefit — from those exposed to pollutants or allergens to individuals who want extra lung support for energy, endurance, or general wellness.

$59.99

Quantity:

Bottle Size: 60 Veggie Capsules

60 Veggie Capsules

Key Benefits

✔ Supports respiratory comfort and clear breathing*
✔ Helps maintain a healthy inflammatory response in airways*
✔ Promotes antioxidant defense against smoke, dust, and pollutants*
✔ Aids natural mucus clearance for easier breathing*
✔ Supports immune defenses for upper respiratory health*

High-Dose Vitamin C Quercetin Complex Citrus Bioflavonoids Produced in USA

The NatureSpan® Difference

🛡️ Quercetin + Vitamin C Synergy

Powerful antioxidants work together to neutralize free radicals, reinforce airway resilience, and support a calmer inflammatory response for daily breathing comfort.

🛡️ Citrus Bioflavonoid Complex

Complementary plant bioflavonoids help recycle vitamin C and optimize quercetin activity, delivering targeted support for lungs and sinuses.

🛡️ High-Potency, Targeted Formula

1,000 mg vitamin C, 500 mg quercetin, and 66 mg citrus bioflavonoids per serving provide robust, focused support for those exposed to urban pollution, smoke, and airborne irritants.

🛡️ Clean Quality You Can Trust

Vegan capsules, non-GMO and allergen-conscious, produced under rigorous GMP/NSF standards for purity, potency, and consistency.

Supplement Facts

NatureSpan® Lung Support Quercetin Complex

Supplement Facts

Serving Size: 1 Capsule

Servings Per Container: 60

Amount Per Serving

%DV

Vitamin C

(as Ascorbic Acid)

1000 mg

1111%

Quercetin

(Dihydrate)

500 mg

†

Citrus Bioflavonoid Complex

(Derived from Citrus Fruits)

66 mg

†

† Daily Value not established.

Other Ingredients: Hydroxypropyl Methylcellulose (Vegetable Capsule), Magnesium Stearate, Silicon Dioxide.

Genuine Quercetin Capsules. High absorption and potency.

Quercetin (originally isolated from Goldenrod) is widely used to support respiratory system health, provides antioxidant activity to help reduce free radicals, and may help alleviate irritation from cooking fumes, dust, and cigarette smoke.

Formulated to support lung tissue health. Produced via vitamin fermentation for high activity.

Uses a counter-current extraction process.

Usage & Safety

Who It’s For: Ideal for smokers, individuals exposed to second-hand smoke, dust, or environmental pollution, those with respiratory discomfort, people seeking lung and cardiovascular support, and individuals with weakened immunity.*

Who Should Avoid It: Not recommended for individuals taking medications or with existing health conditions without consulting a physician.*

Dosage: Take 2 capsules daily with a meal.*

Bottle Supply: 60 capsules (1-month supply).*

Certified Quality: Manufactured in an FDA-registered, GMP and NSF-certified facility; free from the eight major allergens for safety and purity.*

Scientific References

Weber P, Bendich A, Schalch W. Vitamin C and human health—a review of recent data relevant to human requirements. Int J Vitam Nutr Res. 1996;66(1):19-30.
Benzie IF. Vitamin C: prospective functional markers for defining optimal nutritional status. Proc Nutr Soc. 1999 May;58(2):469-76. doi: 10.1017/s0029665199000610.
Qi W, Qi W, Xiong D, Long M. Quercetin: Its Antioxidant Mechanism, Antibacterial Properties and Potential Application in Prevention and Control of Toxipathy. Molecules. 2022 Oct 3;27(19):6545. doi: 10.3390/molecules27196545.
Deepika, Maurya PK. Health Benefits of Quercetin in Age-Related Diseases. Molecules. 2022 Apr 13;27(8):2498. doi: 10.3390/molecules27082498.
Karn A, Zhao C, Yang F, Cui J, Gao Z, Wang M, Wang F, Xiao H, Zheng J. In-vivo biotransformation of citrus functional components and their effects on health. Crit Rev Food Sci Nutr. 2021;61(5):756-776. doi: 10.1080/10408398.2020.1746234.

Lung Health & Respiratory Support Lung Support Quercetin Complex

$59.99

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Premium Quality

Backed by science, crafted with patented ingredients. Read more about our standard.

Advanced Support for Clear Breathing

High-potency quercetin, vitamin C, and citrus bioflavonoids deliver antioxidant protection and a balanced inflammatory response to support lung comfort and daily respiratory wellness. Clean, vegan formula crafted for modern air exposure.

Antioxidant Shield for Lungs

Quercetin and vitamin C help neutralize free radicals generated by smoke, dust, and pollution. This supports healthier airway tissues and everyday breathing comfort.

Quercetin + C Synergy

Vitamin C helps regenerate quercetin’s antioxidant capacity, while citrus bioflavonoids support stability and activity. Together they reinforce a calm, balanced inflammatory response.

Easier, Cleaner Breathing

Targeted nutrients assist the body’s natural mucus clearance and epithelial integrity. The result is clearer airways, less irritation, and more comfortable respiration day to day.

Potency, Purity, Confidence

Each serving provides 1,000 mg vitamin C, 500 mg quercetin, and 66 mg citrus bioflavonoids. Vegan, non-GMO, and produced to GMP/NSF standards for reliable quality.

FAQ

What does Lung Support Quercetin Complex actually do?

It’s designed to help your lungs work at their best by supporting healthy airway function, promoting clear breathing, and providing antioxidant protection against environmental stressors.

How is quercetin helpful for lung health?

Quercetin is a plant-based flavonoid known for its antioxidant and anti-inflammatory properties. In the lungs, it helps calm irritation, reduce oxidative stress, and support overall respiratory wellness.

Who would benefit most from this supplement?

Anyone looking to strengthen their respiratory health may benefit — from those exposed to pollutants or allergens to individuals who want extra lung support for energy, endurance, or general wellness.

Can I take Lung Support Quercetin Complex with my daily vitamins?

Yes, it’s generally safe to take alongside a daily multivitamin or other supplements. However, if you’re on prescription medications or have ongoing health concerns, it’s always best to check with your healthcare provider.