Vitabiotic Ultra Vitamin C Effervescent tablets provide immune system support with a combination of Vitamin C and Zinc. These easy-to-take effervescent tablets dissolve in water to create a refreshing drink that helps boost immunity and provides antioxidant protection. This is a dietary supplement in effervescent tablet form that dissolves in water. The product contains Vitamin C and Zinc which work together to support immune function. As this is a personal health supplement, detailed usage instructions and dosage should be consulted on the product packaging or with a healthcare professional.