The Good Vitamin Co. Ltd Good Vita-C Immunity Relax Effervescent Tablets supports your healthy immune system all year round with a vitamin c effervescent supplement. Simply drop and dissolve a single effervescent tablet in water, watch it fizz and enjoy the juicy orange flavoured drink packed with goodness. Dense with antioxidants, vitamin c effervescent tablets offer that cleansing supplement that supports your body’s resistance to ills and chills.