Boots Max Strength Zinc, 180 TabletsWhat does it do?Zinc is a key nutrient that plays many roles in the body, but because your body doesnt naturally produce Zinc it important to obtain this nutrient through foods or supplements. Our max strength Zinc supplement contributes to the normal function of the immune system and protects cells from oxidative stress. Free from Artificial Colours, Flavours and Preservatives. Lactose Free.