As we age. our skin cells die and build up due to the slowing down of collagen and elastin production. Collagen occurs especially in the skin and its reduction leads to ageing skin and wrinkles. Elastin, as the name suggests, gives our skin elasticity and the ability to bounce back. That is why you must have noticed that with age your skin starts sagging.
So, the best way to remove those dead cells is to start scrubbing regularly!!