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Some of the cells of the outer layer of your skin, the epidermis, slough off about once a week. This is the end result of a process in which the cells move up from the bottom of the epidermis to the top approximately every four weeks and then take another two weeks before they are sloughed off. However, there are always cells ready to slough off every week. They are replaced by new “young” cells. That’s why, no matter how old you are and no matter how much damage has already been done to your skin, you can have younger-looking skin in a very short time.
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