Clear Airways,Calms Allergies
Designed to combat inflammation, support immune health, and enhance respiratory function, Quercetin NAC Capsule offers powerful, multi-targeted benefits in just one daily dose. More than managing symptoms, it fortifies your body’s natural defenses against oxidative stress, viruses, and environmental toxins. Like a protective shield, it works deep within to keep your airways clear, your lungs strong, and your immunity resilient—helping you stay healthier from the inside out.
NAC acts as a natural mucolytic, breaking down and thinning stubborn mucus, while Quercefit®️ Quercetin helps soothe airway irritation, promoting freer, more comfortable breathing.
Maintain clear, healthy airways with the synergistic effects of Quercefit® Quercetin and NAC. Quercetin calms airway inflammation, while NAC enhances airflow to support optimal lung function.
Quercefit® Quercetin’s anti-inflammatory and anti-asthma properties help relax and open the airways, easing both daytime and nighttime asthma symptoms. NAC complements this by improving airflow and overall lung performance.
Quercefit® Quercetin has antihistamine properties that helps reduce the body’s overreaction to allergens, easing sneezing, nasal congestion, and itchy eyes. Paired with NAC’s ability to keep airways clear, it supports smooth, comfortable breathing during allergy flare-ups.
This formula helps to strengthen the body’s antioxidant defenses, including replenishing glutathione, the master antioxidant. This fortifies immune resilience, helps reduce infection risk, and offers added protection against respiratory threats—clinically shown to support recovery and prevention in COVID-19 cases.
The Pleiotropic Duo
Quercetin Phytosome®
Known as the queen of flavonoids, Quercetin is renowned for its potent antioxidant and anti-inflammatory benefits. Quercetin Phytosome® utilizes advanced Phytosome™ technology for up to 20× better bioavailability, ensuring your body absorbs and utilizes it to the fullest. It helps relieve symptoms of allergies, asthma, and other respiratory concerns, while delivering powerful protection against oxidative damage and strengthening immunity.
N-Acetyl-L-Cysteine (NAC)
NAC is a powerful antioxidant that helps replenish glutathione, one of the body’s most important antioxidants. Renowned for its mucolytic properties, NAC helps break down and thin mucus, clear the airways, and promote easier breathing. It also supports the body’s natural detoxification processes, enhances liver function, and strengthens the immune system for better overall health and resilience.
Mucus Out, Fresh Air In
Strengthen, Protect, Thrive Naturally!
Take 1 capsule of Quercetin NAC Capsule daily to support your immune system, reduce inflammation, and protect your respiratory health. Experience faster recovery from infections, relief from allergy symptoms, improved lung function, and enhanced antioxidant defense. A powerful solution redefining natural wellness and vitality!
Too much mucus can block the airways and make breathing difficult. N-Acetylcysteine (NAC) is a clinically recognized antioxidant with mucolytic and expectorant properties that help break down and clear mucus. Paired with Quercetin, the “queen of flavonoids” with powerful anti-inflammatory and antioxidant effects, this duo not only clears airways but also helps improve oxygen flow, reduce airway inflammation, and support overall lung function for easier, healthier breathing.
Strengthen, Protect, Thrive Naturally!
Take 1 capsule of Quercetin NAC Capsule daily to support your immune system, reduce inflammation, and protect your respiratory health. Experience faster recovery from infections, relief from allergy symptoms, improved lung function, and enhanced antioxidant defense. A powerful solution redefining natural wellness and vitality!

Balance – Restores immune harmony by downregulating overactive Th2 cytokines.

Shield – Stabilizes mast cells to prevent excessive histamine release.

Soothe – Reduces inflammation and neutralizes harmful free radicals.

Protect – Strengthens overall immune defense for lasting resilience.
4-in-1 Allergy Relief Actions
Allergy Relief Begins with Balance
Clinically supported, Quercetin Phytosome® and N-Acetyl-L-Cysteine (NAC) work synergistically to neutralize free radicals, reduce inflammation, and boost Natural Killer (NK) cell activity — your body’s frontline defense. This dual-action formula protects your cells, supports respiratory health, and strengthens immunity, helping you feel resilient, energized, and better prepared to face daily health challenges.
Weak or compromised immune system
Frequent colds or viral infections
Seasonal allergies & hay fever
Asthma or respiratory issues
Chronic inflammation
High exposure to pollution & toxins
Fatigue from oxidative stress
Post-illness recovery
People on hectic or stressful lifestyles
Anyone seeking natural antioxidant support
Protection during flu & cold seasons
Those wanting healthier, more resilient cells
Why Choose Quercetin NAC Capsule?
Quercetin NAC Capsule is a dual-action formula designed to strengthen your immune system, support respiratory health, and protect your cells from oxidative stress. Packed with clinically studied ingredients, it provides comprehensive immune and respiratory support for daily wellness and faster recovery from common illnesses.
Powerful Dual-Action Formula
Each capsule combines 250 mg of Quercetin Phytosome® and 300 mg of N-Acetyl-L-Cysteine (NAC) to boost Natural Killer (NK) cell activity, reduce inflammation, and support healthy lungs and airways. This synergistic combination enhances your body’s natural defenses against viruses, bacteria, and allergens.
High Antioxidant Protection
Quercetin and NAC are both potent antioxidants, helping to neutralize free radicals, reduce oxidative stress, and protect your cells from damage. Together, they support overall cellular health, immunity, and long-term vitality.
Clinically Proven Ingredients
Formulated with Quercetin Phytosome® from Italy and NAC, this scientifically backed formula has been shown in studies to improve immune function, respiratory health, and antioxidant defenses for daily protection and wellness.
Easy Daily Use
Take 1–2 capsules daily after meals to maintain optimal immune support and respiratory function. During periods of high stress, flu season, or mild illness, take as recommended for enhanced protection and faster recovery. Suitable for adults seeking natural, science-backed immune and respiratory support.
Highly Recommended For
Cold, Flu, or Viral Infections
Asthma and Respiratory Concerns
Allergy Symptoms
Skin Health and Anti-Aging
Liver Support
Why Choose Quercetin NAC Capsule?
Quercetin NAC Capsule is a dual-action formula designed to strengthen your immune system, support respiratory health, and protect your cells from oxidative stress. Packed with clinically studied ingredients, it provides comprehensive immune and respiratory support for daily wellness and faster recovery from common illnesses.
Powerful Dual-Action Formula
Each capsule combines 250 mg of Quercetin Phytosome® and 300 mg of N-Acetyl-L-Cysteine (NAC) to boost Natural Killer (NK) cell activity, reduce inflammation, and support healthy lungs and airways. This synergistic combination enhances your body’s natural defenses against viruses, bacteria, and allergens.
High Antioxidant Protection
Quercetin and NAC are both potent antioxidants, helping to neutralize free radicals, reduce oxidative stress, and protect your cells from damage. Together, they support overall cellular health, immunity, and long-term vitality.
Rapid-Onset Results
Experience calming effects within 30 minutes to 2 hours. This fast-acting formula provides immediate relief, helping you stay mentally sharp and emotionally balanced.
Non-Habit Forming
ZEMBRENax™ is a safe, non-habit forming solution, designed to support long-term mental and emotional well-being without dependency.
Clinically Proven Ingredients
Formulated with Quercetin Phytosome® from Italy and NAC, this scientifically backed formula has been shown in studies to improve immune function, respiratory health, and antioxidant defenses for daily protection and wellness.
Easy Daily Use
Take 1–2 capsules daily after meals to maintain optimal immune support and respiratory function. During periods of high stress, flu season, or mild illness, take as recommended for enhanced protection and faster recovery. Suitable for adults seeking natural, science-backed immune and respiratory support.
Non-Drowsy Formula
Stay alert and focused throughout the day. ZEMBRENax™ keeps you energized and clear-headed without causing drowsiness or fatigue.
Easy Daily Use
Take just 1-2 capsules per day to enjoy lasting benefits. ZEMBRENax™ is easy to incorporate into your daily routine to support ongoing cognitive health and mood stabilization.
Got Questions?
We’ve Got Answers
Quercetin NAC Capsule is a dual-action supplement combining Quercetin Phytosome® and N-Acetyl-L-Cysteine (NAC). It supports immune health, respiratory function, and provides powerful antioxidant protection for overall wellness.
Quercetin boosts immune response and reduces inflammation, while NAC supports glutathione production, clears mucus from airways, and protects cells from oxidative stress. Together, they strengthen your body’s natural defenses.
Adults looking to support their immunity, respiratory health, or antioxidant defenses can take this supplement. It is especially helpful during flu season, allergy season, or periods of high environmental stress.
Take 1–2 capsules daily after meals. For enhanced protection during illness or high-stress periods, follow the recommended dosage on the packaging or consult a healthcare professional.
Quercetin NAC Capsule is generally well-tolerated. If you are pregnant, nursing, or have a medical condition, consult a healthcare professional before use.
In most cases, it is safe, but if you are on prescription medications (especially blood thinners or immunosuppressants), consult your doctor before starting this supplement.
Some users may notice improved energy, reduced allergy symptoms, or better respiratory comfort within a week. Immune and antioxidant support builds over consistent use.
Yes, Quercetin acts as a natural antihistamine, helping to reduce allergy symptoms, while NAC supports lung function and helps clear mucus, benefiting individuals with asthma or respiratory sensitivity.


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