When a deodorant gel or antiperspirant is applied to the skin, it dissolves in the sweat and absorbs the moisture on the skin. The main ingredient of an antiperspirant gel or deodorant gel is aluminium salt. It is mainly applied to the armpits. The role of the antiperspirant is to cover the sweat glands. It helps in reducing the amount of sweat on skin that generates odour. It forms a layer on top of the sweat glands, thus reducing sweat or preventing the glands from secreting sweat. These gels also make you smell good throughout the day as it comes in different fragrances. Many antiperspirants products use some emollient oils and ingredients which also help to soothe and soften the skin. One of the most useful features of a deodorant gel is that it also has ingredients that prevent the product to dry out and leave residues on the skin and clothes.