D Wik Pineapple Flavour Sugar Free Nano Emulsion is used for supporting calcium absorption, bone strength and immune and nervous system functions. It is a dietary supplement that contains Vitamin D3 (Cholecalciferol) in a nano-emulsion form. This formulation can help the body absorb calcium effectively from food. It may assist in improving bone strength and maintaining overall bone health. The supplement can help support immune and nervous system functioning. Its sugar-free and pineapple-flavored liquid format makes it suitable for those with dietary restrictions and improves user compliance.