It’s different for different skin types. Exfoliation is needed because our skin regenerates from inside out, and as a result, the layers of dead skin cells are pushed to the top of the skin. In some cases, if we are not exfoliating, our skin’s texture will look dry and uneven. Some people have more resilient and plumper skin versus some people have a tendency to have dry and thin skin. So generally, they need to exfoliate less. If we would like to have general advice, at least once a week to polish our skin and remove the excess shells of dead skin cells. Usually after 40, people develop thicker layers of the dead skin cells on the surface. To improve the texture, and reduce the depth of lines and wrinkles we usually need to exfoliate more. Of course, you need to choose exfoliation based on your complexion for dry/sensitive, oily/acne-prone, or a combination. Alpha Hydroxy Acids (AHAs)are known to help unclog your pores to reveal smoother, younger-looking skin beneath.