Redoxon Effervescent is a vitamin C supplement that comes in a convenient pack of 15 effervescent tablets. These tablets dissolve in water to create an orange-flavored drink that helps support the immune system. This is a medicinal product containing vitamin C (ascorbic acid) in effervescent tablet form. The tablets should be fully dissolved in water before consumption. Always read the label and follow dosage instructions. Store in a cool, dry place away from direct sunlight.