The outer layer of the skin, known as the epidermis, is produced up of previous, lifeless cells that happen to be continually shedding. They are changed by new cells underneath, which shift up to interchange the lifeless cells. As the new skin cells move up, they harden and die. This https://loanbookmark.com/story14029838/how-much-you-need-to-expect-you-ll-pay-for-a-good-how-to-use-facial-roller