Swanson Premium

Ultimate Respiratory Defense with NAC and Quercetin

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item | SW1852

Swanson Premium

Ultimate Respiratory Defense with NAC and Quercetin

Review Stars
( 12 )
Write a review
Ultimate Respiratory Defense with NAC and Quercetin
  • Product Details

    • Supports healthy respiratory function and cellular antioxidant activity
    • NAC helps replenish glutathione, a critical component of the body’s defense system
    • Promotes healthy seasonal immune system function

    Breathe easy with Swanson Ultimate Respiratory Defense with NAC & Quercetin! This novel formulation combines two potent antioxidants in one convenient veggie cap to support healthy lungs and immune system function no matter what the season brings.

    N-acetyl cysteine (NAC) is an amino acid derivative that has been clinically studied to support respiratory health and also helps replenish levels of glutathione, often called the “master antioxidant.” NAC and glutathione work together to protect against oxidative stress from free radicals and maintain healthy liver function, thereby supporting detoxification pathways. NAC is gaining popularity for promoting healthy aging and immune health.

    Quercetin is an abundant antioxidant found in plants like berries and leafy greens that acts as a free radical scavenger to support healthy aging. It is an important part of our body’s immune response due to its interaction with cell signaling. While most of us get the quercetin we need through everyday foods like onions, apples and berries, research suggests higher amounts of this unique bioflavonoid help to support respiratory tract health. Swanson Ultimate Respiratory Defense provides a concentrated dose of this powerful antioxidant for optimum protection.

    Swanson Ultimate Respiratory Defense delivers 600 mg NAC and 250 mg quercetin in a single veggie cap serving for advanced support of healthy respiratory and immune function.

    These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

  • Serving Information

  • Supplement Facts

    Supplement Facts

    Serving Size 1 Vegan Capsule

    Supplement Facts
    Amount Per Serving % Daily Value
    N-Acetyl Cysteine (NAC)
    600 mg
    Quercetin (from quercetin dihydrate)
    250 mg

    *Daily Value not established.

    Other ingredients: Hypromellose (vegan capsule), magnesium stearate, silica, rice bran.

    Suggested Use: As a dietary supplement, take one vegan capsule per day with water or as recommended by your healthcare provider.

    WARNING: For adults only. Do not take this product if you are pregnant or nursing. Consult your healthcare provider before use if you are taking any prescription medication or if you have a medical condition. Discontinue use if you experience gastrointestinal discomfort.

    Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.


    by our team of internal scientific & wellness experts


    for unsurpased purity, potency safety & quality by internal & third-party labs


    by Swanson Health's expert standards for quality products for mind, body & home

    Quality Code Approved


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  • Ratings & Reviews

    Disclaimer: Product reviews are provided for informational purposes only. The information or opinions expressed therein are solely those of the contributors and do not necessarily represent those of Swanson Health Products and its employees.
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