Burgerstein Zink-C 60 toffeesBurgerstein Zinc C are tasty toffees to suck with zinc, vitamin C and a fine orange aroma. Zinc and vitamin C can be optimally absorbed through the mucous membranes. Both micronutrients support the normal function of the immune system. Zinc and vitamin C a combination that has been tried and tested over the years. Especially in the cold winter months, our immune system needs help. Dry heating air, many people in a small space, there are the delicious,