Quercetin Complex With Ester-C Plus supports immune health and antioxidant protection, thanks to a potent blend of quercetin and Ester-C, chosen for quality and trusted Solgar heritage. The formula also includes Ester-C plus citrus bioflavonoids to support immune function and collagen formation. Solgar's GMP standards and long standing commitment to quality sit behind every bottle.

Available Sizes & Variants:

100 capsules Quercetin Complex With Ester-C Plus – standard daily dose for ongoing immune support.

Benefits & Features:

• Supports immune health with quercetin and Ester-C.
• Vitamin C support helps collagen formation and immune function, while citrus bioflavonoids boost absorption and nutrient utilisation for daily resilience.
• A clean, vegan friendly formula from Solgar means you can trust the quality and purity, with strict GMP manufacturing and third party testing that keeps traceability and potency high.
• Perfect for daily use, the capsules are easy to swallow and designed for steady daily support.
• This blend balances multiple actives - quercetin for antioxidant protection, Ester-C for vitamin C delivery, and bromelain for inflammation support.

Solgar has stood for premium nutrition since 1947, built on scientific rigor and transparent quality. Every product is made in GMP certified facilities with rigorous testing for purity and potency. This quercetin complex combines quercetin with Ester-C Plus, bromelain and citrus bioflavonoids to support immune health, oxidative balance and collagen formation. It\'s vegan, non GMO and free from major allergens, and fits neatly into a daily health routine alongside other supplements like probiotics or berberine, not a vitamin d supplement.

Vitamin C† (as Ester-C, calcium ascorbate), Calcium† (as Ester-C, calcium ascorbate), Quercetin, Bromelain (2000 GDU/g), Citrus Bioflavonoids Complex, Rose Hips (fruit), Acerola (berry), Rutin, Vegetable cellulose, vegetable stearic acid, microcrystalline cellulose, silica, vegetable magnesium stearate.

• GTIN: 33984023192
• Manufacturer: Solgar
• Categories: Gout SupplementsIn stockLung & Respiratory SupplementsNew ArrivalsQuercetinSolgar
• 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.

For adults, take two vegetable capsules twice daily with a meal or as advised by a healthcare practitioner. As a dietary supplement\, take four capsules per day\, or as directed by your health care practitioner.

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

The Active Ingredient Is: Quercetin

Quercetin, a natural bioflavonoid, is recognised as an antioxidant that contributes to protecting cells from oxidative stress. This form is provided within a broader blend that supports immune health and collagen-related processes.

In this combination, quercetin is presented alongside Ester-C and other botanical components to support its activity. This formula also has included citrus bioflavonoids and related nutrients, which help to support the primary role of quercetin in the blend.

What Does Quercetin Do?

Quercetin participates in neutralising free radicals and may support immune cell function and inflammatory regulation. It also acts as a natural mast cell stabiliser, which can help to reduce histamine release in the body.

Scientific context suggests these actions are mechanisms by which quercetin contributes to normal immune and inflammatory processes—aligned with general nutritional guidance for antioxidant support.

Dr. Li of a university found that quercetin acts as an antioxidant and may support immune function, while also helping regulate inflammatory responses.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Solgar brings a science‑driven, heritage‑rich approach to supplements, making it a natural partner for Welzo. Founded in 1947, Solgar is internationally recognised for quality, scientific rigour and long‑standing industry presence, with healthcare professionals frequently recommending the brand. This enduring reputation underpins our confidence in their consistency, transparency and leadership in premium nutrition.

Solgar manufactures in GMP‑certified facilities with strict quality assurance at every stage, emphasising traceability, purity and potency. The company routinely subjects products to third‑party testing and holds certifications for kosher, vegan and non‑GMO status, aligning with Welzo’s high standards for safety and integrity. This focus on robust quality controls is a core reason we selected Solgar as our supplier over other options.

For this specific supplement, Solgar’s Quercetin Complex With Ester-C Plus is a well‑suited fit given its comprehensive, well‑designed formulation and Solgar’s demonstrated manufacturing excellence. This brand’s approach supports Welzo’s requirements for rigorous testing and trustworthy sourcing, evaluated by our team of medical experts and verified through our quality certification process.