Recently, a viewer asked Dr. Schultz if exfoliating can cause you to run out of skin. They asked that since exfoliation removes the uppermost, dead layer of skin cells, and the Hayflick limit states that your cells can only divide a certain number of times, when you've surpassed that number, won't you run out? Since exfoliation is the most important therapeutic treatment you can do for your skin, you can guess what Dr. Schultz's answer to this question was. In this episode, Dr. Schultz explains why exfoliating is safe and why the Hayflick limit doesn't apply. You won't have to worry about your skin "running out" by regular exfoliation. Your skin will constantly produce replacements for existing cells and won't be depleting any time soon!