Natrol Quercetin Complex is an immune support supplement that pairs quercetin with vitamin C and citrus bioflavonoids to help protect and support your natural defences. Designed for daily immune support, it brings together the star active ingredient quercetin with vitamin C and citrus bioflavonoids to boost antioxidant protection during seasonal changes and occasional stress. Natrol keeps to allergen free formulations with no artificial colours, flavours or preservatives.

Available Sizes & Variants:

50 caps - Daily immune support you can rely on.

Benefits & Features:

• Supports immune health daily.
• Combines quercetin with vitamin C and citrus bioflavonoids to provide antioxidant protection and help modulate immune responses for better resilience during seasonal changes and occasional stress.
• Free from common allergens and artificial colours, flavours or preservatives.
• Designed for daily use with meals to maximise absorption and consistency.
• All ingredients are clearly listed, and the formula aims to support a steady daily immune routine.

Natrol Quercetin Complex sits within a long line of immune supporting blends. The formula pairs quercetin with vitamin C and citrus bioflavonoids, using citrus sources from orange, lemon and other citrus fruits. It's allergen free and free from artificial colours, flavours or preservatives, reflecting Natrol's commitment to quality. This well rounded trio offers everyday immune support and antioxidant protection, making it a handy part of a daily routine that sits nicely with a vitamin d supplement or probiotics for gut health, and even berberine for a broader wellness routine.

Vitamin C (as Ascorbic Acid), Quercetin, Vitamin C (as Ascorbic Acid), Quercetin

• GTIN: 47469009083
• Manufacturer: Natrol
• Categories: Gout SupplementsLung & Respiratory SupplementsNatrol Supplements & VitaminsQuercetin
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 2 capsules once daily with a meal. Store in a cool, dry place. WARNING: Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication or have a medical condition; if adverse reactions occur, discontinue use. Keep out of reach of children.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Vitamin C (Ascorbic Acid)

Vitamin C, also called ascorbic acid, is a water-soluble essential nutrient involved in a range of everyday bodily functions. It supports everyday physiological processes and antioxidant protection.

This form is usually supplied as ascorbic acid and is a widely used, well recognised standalone nutrient in supplements to support everyday nutritional needs.

What Does Vitamin C Do?

Vitamin C supports the normal function of the immune system and contributes to antioxidant protection, helping to maintain cellular health in line with EFSA guidance.

It helps daily metabolism and protects tissues from oxidative stress as part of a balanced diet and lifestyle.

This supplement isn't intended to diagnose, treat, cure, or prevent any disease.

Natrol is our chosen maker for this supplement thanks to its well‑established focus on immune-supportive formulations that blend quercetin with vitamin C and citrus bioflavonoids. This brand's approach to premium, allergen‑friendly products lines up with Welzo's commitment to transparent, safe supplements, including options free from common allergens and artificial additives.

Natrol Quercetin Complex shows brand credibility through its long‑standing position in the vitamin and supplement space. The product blends vitamin C with quercetin and citrus bioflavonoids to support immune health and antioxidant protection, using tried‑and‑true ingredients that are widely recognised in this category. It is designed to give a clear, once‑daily dosage that supports easy daily use.

This brand stood out in our evaluation for product integrity and consistency, prompting a partnership that emphasises quality and reliability. Our medical team our medical team reviewed the formulation alongside our quality assurance criteria, confirming its suitability for Welzo customers and aligning with our rigorous vetting process.