Vitamin C Extra + Quercetin 250 mg by Natural Factors contains 500 mg of vitamin C and 250 mg of quercetin. Vitamin C is a powerful antioxidant that supports healthy bones, cartilage, teeth, and gums. It helps protect cells from free radical damage and vitamin C deficiencies in the daily diet and supports healthy cell growth. Quercetin is one of the best-known antioxidant bioflavonoids, helping to support the healthy function of the sinuses, respiratory, and immune systems.

• Capsules that are easier to swallow compared to tablets of similar size.
• Helps protect cells from free radical damage.
• Supports the healthy function of the sinuses, respiratory, and immune systems.