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Sisu Ester-C 600mg w/Bioflavanoid 120 Vegetarian Capsules

Save 22%
Original price $36.99
Current price $28.99

A unique, patented form of calcium ascorbate, which is made when ascorbic acid (regular vitamin C) and is buffered with calcium using a water-based process. The calcium in Ester-C® provides part of your daily calcium requirements.

  • Contains active vitamin C metabolites including L-threonate which enhance cellular absorption and retention
  • Proven to last up to 24 hours in the white blood cells of the immune system
  • Less acidic and easier on the stomach than ascorbic acid
  • Enhanced with quercetin, a bioflavonoid and powerful antioxidant with anti-inflammatory and anti-histamine properties
  • Added bioflavonoids from berry fruits for superior vitamin C absorption
  • Arabinogalactan is a type of polysaccharide that offers additional immune support during stressful times and the cold and flu season
  • Has clinically proven higher bioavailability and retention rate than other forms of vitamin C


  • Fast dissolving vegetarian capsule
  • Suitable for vegans
  • Contains no ingredients that are a source of gluten
  • GMP standards
  • Tested for guaranteed purity and potency
  • NPN approved