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  • Supports immune function
  • Contains antioxidants that help protect against free radicals
  • Helps in collagen formation to maintain healthy bones, cartilage, teeth, and gums
  • Supports the body’s ability to metabolize nutrients
  • Assists in preventing vitamin C deficiency

Natural Factors C Extra + Quercetin Bioflavonoids is an immune-support formula that combines the antioxidant benefits of vitamin C and the bioflavonoid quercetin in a potent 1:1 ratio. Vitamin C helps in collagen formation to maintain healthy bones, cartilage, teeth, and gums, while quercetin enhances the activity of vitamin C in the body. Quercetin is currently being studied for additional health benefits.

Medicinal Ingredients:
Each tablet contains:
Vitamin C (ascorbic acid) 500 mg
Quercetin (bioflavonoids) 500 mg

Non-Medicinal Ingredients:
Microcrystalline cellulose, dibasic calcium phosphate dihydrate, croscarmellose sodium, carbohydrate gum, coating (carbohydrate gum [cellulose], glycerin), stearic acid, vegetable grade magnesium stearate (lubricant), silica.

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