Where to Buy

60, 120, 240 | Vegetable Caps

Year-Round Daily Use; This Ester-C formula with citrus bioflavonoids is suitable for year-round use, but dosage can be increased during cold and flu season, or times of stress.

Immune Support & More; This antioxidant-rich Ester-C formula supports immune health and allergy relief, and helps maintain strong bones, gums, and teeth.

Well Retained; Clinical studies show that Ester-C increases vitamin C levels in the body for up to 24 hours.

Superior Absorption; Regular vitamin C is first buffered with calcium, then a special process transforms it into trademarked Ester-C. This vegan, non-GMO formula contains no dairy, gluten, or soy .

Gentle On The Stomach; Sisu Ester-C 600 mg is a less-acidic vitamin C that is gentle on the digestive system.

  • Dairy Free

  • Soy Free

  • Vegan

  • Non GMO

  • Gluten free

  • Ingredients & Dosage
  • Advanced Information

Each capsule contains
Medicinal ingredients

  • Vitamin C (calcium ascorbate)
    from Ester-C® brand calcium ascorbate
    600 mg
  • Calcium (calcium ascorbate)
    72 mg
  • Citrus bioflavonoids
    (lemon, grapefruit, orange, mandarin orange–fruit)
    100 mg

Non-medicinal ingredients

  • magnesium stearate (vegetable)

Capsule shell

  • hypromellose

Adult dosage

  • Take 1–2 capsules daily or as directed by a health care practitioner

Contains no

  • Dairy, wheat, gluten, or soy

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