Natural Factors – Immune Support Quercetin 500 mg (60 Capsules)

Natural Factors® Immune Support Quercetin 500 mg (60 Capsules) delivers a high-strength, pure quercetin formula designed to support immune function, antioxidant defense, respiratory wellness and a healthy inflammatory response. Quercetin is a naturally occurring flavonoid found in fruits and vegetables, well-known for its protective and immune-modulating properties.

Why Choose Quercetin 500 mg?

Quercetin helps stabilize histamine levels, supports balanced immunity, and protects cells from oxidative stress. Quercetin 500 mg from Natural Factors provides a potent daily dose ideal for seasonal support, respiratory health, or general antioxidant protection.

Key Benefits

• Supports a strong and balanced immune response
• Helps regulate healthy histamine levels
• Promotes respiratory comfort and seasonal wellness
• Provides powerful antioxidant protection
• Supports cardiovascular and cellular health
• High-potency, pure quercetin — non-GMO and vegan-friendly

Active Ingredients

Each capsule contains:
Quercetin – 500 mg
Other ingredients: vegetarian capsule (hypromellose, water), microcrystalline cellulose, magnesium stearate, silica.
Non-GMO. Gluten-free. Soy-free. Vegan.

Directions for Use

Adults: take 1 capsule 1–2 times daily with food or as recommended by a healthcare practitioner.

Warnings

Consult a healthcare practitioner if pregnant, breastfeeding, or taking medications such as blood thinners. Do not exceed recommended dose. Keep out of reach of children.

Internal Links

Explore more immune and antioxidant support formulas:
Immune Support
Vitamins & Antioxidants
All Natural Factors Products

External Research Links

Learn more about quercetin benefits:
NCBI – Quercetin Immune & Anti-Inflammatory Research
Healthline – Quercetin Benefits