Natural Factors – Immune Support C Extra + Quercetin Bioflavonoids 500 mg + 250 mg (60 Capsules)
£15.90
Natural Factors® Immune Support C Extra + Quercetin combines 500 mg vitamin C with 250 mg quercetin and natural citrus bioflavonoids to support immune strength, antioxidant defense, respiratory wellness, collagen formation and overall cellular protection.
Natural Factors® Immune Support C Extra + Quercetin Bioflavonoids (500 mg Vitamin C + 250 mg Quercetin) – 60 Capsules delivers a powerful antioxidant and immune-support formula designed to strengthen your natural defenses, protect cells from oxidative stress and support respiratory and cardiovascular wellness.
This advanced blend combines the synergistic action of high-potency vitamin C, natural citrus bioflavonoids and quercetin — a plant-based antioxidant known for its anti-inflammatory and immune-modulating properties.
Why Choose C Extra + Quercetin Bioflavonoids?
Vitamin C and quercetin work better together. Quercetin enhances vitamin C activity, supports immune resilience, stabilizes histamine response and promotes antioxidant protection. This formula is ideal for periods of stress, seasonal changes, respiratory challenges or daily immune maintenance.
Key Benefits
- Supports a strong and balanced immune response
- Provides powerful antioxidant and cellular protection
- Contains natural citrus bioflavonoids that enhance vitamin C absorption
- Promotes respiratory wellness and healthy histamine response
- Supports collagen synthesis for skin, joints and vascular health
- Ideal for daily immune maintenance or seasonal support
- Non-GMO, gluten-free and free from artificial preservatives
Active Ingredients
Each capsule contains:
Vitamin C (ascorbic acid) – 500 mg
Quercetin – 250 mg
Citrus Bioflavonoids Complex – enhances antioxidant effect and absorption
Other ingredients: vegetarian capsule (hypromellose, water), magnesium stearate, microcrystalline cellulose, silica.
Non-GMO. Gluten-free. Soy-free.
Directions for Use
Adults: take 1–2 capsules daily with food, or as recommended by a healthcare practitioner.
Warnings
Consult a healthcare practitioner if pregnant, breastfeeding, or taking medications (especially for blood pressure or anticoagulants). Do not exceed recommended daily dose. Food supplement only. Keep out of reach of children.
Internal Links
Explore more immunity and antioxidant support formulas:
Immune Support
Vitamin C & Antioxidants
All Natural Factors Products
External Research Links
Learn more about vitamin C and quercetin synergy:
NCBI – Quercetin Immune Research
NCBI – Vitamin C & Immune Support
