Product images are for presentation purposes only and do not create contractual obligations.
Quercetin 500 mg, 90 capsules
Quercetin 500 mg, a 100% natural antioxidant for immunity and allergy control. Useful in allergic rhinitis and bronchial asthma. 90 capsules.
20% off
Limited deal
Original price was: €26.90.€21.52Current price is: €21.52.
Fast delivery through top-tier local couriers
Shop safely with secure Stripe payments
Not sure yet? You can save this product for later.
Add it to your favorites list!
Add it to your favorites list!
Why it's the right choice
- 100% natural antioxidant food supplement.
- 500 mg of quercetin in a single capsule.
- The breakthrough ingredient of recent years in the fight against respiratory infections.
- Strengthens the immune system.
- Natural anti-allergic and antihistamine action.
- Helps in allergy management.
- Suitable for allergic rhinitis and bronchial asthma.
- Provides strong antioxidant protection.
- Contributes to reducing inflammation in the body.
- Supports cardiovascular health.
- Also suitable for vegetarians and vegans.
- Free from gluten, soy, lactose, flavors, sweeteners, or chemical additives.
Ingredients
- Quercetin dihydrate from Japanese pagoda tree flower buds (Sophora japonica), 95% – 500 mg
- Vegetable capsule: hypromellose.
- The product contains ingredients from natural sources, so variations in color, smell, or appearance may occur from one batch to another. This does not affect the product’s effectiveness or safety.
Does not contain lactose, gluten, soy, magnesium stearate, artificial sweeteners or other chemical additives!
Directions for use
- Adults: 1 capsule 1–2 times per day, preferably with a meal or as recommended by a healthcare specialist.
Warnings
- Use by young children, pregnant, or breastfeeding women should be done under specialist recommendation.
- The product is not recommended for individuals with intolerance to any of the ingredients.
Storage conditions
- Keep in the original packaging, tightly closed, in a dry place, away from light and heat.
- Best consumed before the expiration date printed on the packaging (see Exp and Lot on the cap).
Share this product
Quercetin: our proposal for immunity and allergy control! 100% natural antioxidant
Quercetin is a 100% natural food supplement recommended for maintaining the health of the immune, respiratory, and cardiovascular systems, reducing oxidative stress, inflammation, and allergic manifestations (especially in the respiratory system – bronchial asthma, allergic rhinitis). Quercetin is a flavonoid naturally found in raw fruits and vegetables (peppers, onions, asparagus, tomatoes, broccoli, cherries, apples, grapes). Quercetin is recognized for its powerful antioxidant properties. In food supplements, quercetin also has anti-inflammatory and antihistamine properties. Additionally, it contributes to maintaining blood pressure within normal limits, reduces capillary fragility, protects blood vessels, and supports cholesterol reduction. Quercetin also has anti-aging properties, helping maintain skin, brain, and heart health.
How does Quercetin 500 mg from Zenyth help you?
- Strengthening the immune system.
- Reducing allergic reactions (bronchial asthma, rhinitis).
- Antioxidant protection.
- Respiratory system health.
- Reducing inflammation.
- Cardiovascular system health.
- Maintaining blood pressure within normal limits.
- Lowering cholesterol.
- Normalizing dopamine, serotonin, and cortisol levels.
How does quercetin act in case of allergies?
According to studies, quercetin has antihistamine properties, preventing the release of histamine from certain immune cells. A study conducted by the University of Zlin (Department of Food Analysis and Chemistry, Faculty of Technology), Czech Republic, showed that quercetin may help maintain Th1–Th2 immune balance and prevent the formation of IgE antibodies. Thus, quercetin reduces symptoms characteristic of allergic reactions triggered by pollen, animal hair, or chemical products (hives, itching, skin redness, sneezing, nasal congestion, difficulty breathing).
Quercetin reduces systemic inflammation
Studies have shown that high levels of free radicals in the body promote systemic inflammation. Reducing systemic inflammation is a fundamental principle in functional medicine, as systemic inflammation is a contributing factor to chronic diseases (allergies, autoimmune diseases, cardiovascular, kidney, liver diseases, even cancer). Quercetin is one of the most powerful antioxidant nutrients found in nature. When taken long-term, quercetin supplements reduce free radical levels and, consequently, inflammation.
Quercetin 500 mg is a food supplement.
Food supplements do not replace a varied, balanced diet and a healthy lifestyle! Do not exceed the recommended daily dose! Keep out of reach and sight of young children!
Manufacturer / Notification Holder: Zenyth Pharmaceuticals SRL, Alexandru cel Bun, Neamț County, Romania, Tel.: +40 233 222 203. Product registered and notified at SNPMAPS, series AA, no. 13200/2019.
Frequently Asked Questions about Quercetin 500 mg, 90 capsules
Didn’t find the answer to your question? Please write to us here and you’ll receive a reply by email.

Quercetin 500 mg, 90 capsules
Ai o întrebare despre acest produs?
Related products
Quercetin Immune Complex, 90 capsules
Quercetin Immune Complex, a Unique Formula for Strong Immune Support and Prevention of Viral Infections. Helps Reduce the Duration and Symptoms of Cold and Flu. 90 Capsules.
Original price was: €27.90.€22.32Current price is: €22.32.
Andrographis, 30 capsules
Andrographis, support for strong immunity and the reduction of respiratory viral symptoms. 30 capsules.
Original price was: €7.90.€3.95Current price is: €3.95.
Quercetin 500 mg, 30 capsules
Quercetin 500 mg, a 100% natural antioxidant for immunity and allergy control. Useful in allergic rhinitis and bronchial asthma. 30 capsules.
Original price was: €11.90.€9.52Current price is: €9.52.












