- Provides a source of antioxidants
- Used in herbal medicine as a blood vessel protectant for cardiovascular health
- Provides allergy relief and immune support
- Helps combat free radical damage and reactive oxygen species
- Protects against oxidative stress
Natural Factors Quercetin 500 mg provides a concentrated source of the antioxidant quercetin, a potent bioflavonoid found in certain fruits, vegetables, and herbs. Quercetin is used in herbal medicine as a blood vessel protectant and supports cardiovascular and immune health. It is an effective supplement for adults who want to protect against oxidative stress and relieve seasonal allergies.