Containing added citrus bioflavonoids for superior absorption, the original Ester-C® 600 formula works to strengthen your immune system, alleviate allergy symptoms, encourage the growth and repair of body tissues and help maintain the integrity of bones, gums and teeth. Ester-C® 600 capsules are suitable for use year round, but dosage can be increased during cold and flu season or during times of stress.Each capsule containsMedicinal ingredients Vitamin C (calcium ascorbate) 600 mg Calcium (calcium ascorbate) 72 mg Citrus bioflavonoids 100 mg Non-medicinal ingredientsmagnesium stearate (vegetable)Capsule shellhypromelloseContains noDairy, wheat, gluten, or soyAdult dosageTake 1–2 capsules daily or as directed by a health care practitioner