PATHOLOGY

Detailed explanation-1: -The epidermis constantly renews itself: New cells are made in the lower layers of the epidermis. These move to the surface within four weeks. This constant renewal serves to replace the cells that are lost and fall to the ground as tiny flakes of skin when the skin is rubbed.

Detailed explanation-2: -The epidermis is continually renewed from stem cells, with a turnover time, in humans, of the order of a month.

Detailed explanation-3: -Skin cell renewal varies from person to person, but to give you an idea – in babies, skin cell renewal takes around 14 days. For teenagers, it’s around 28 days. In middle age, it takes between 28-42 days. And for 50 plus, it can be up to 84 days.