Exfoliation is what buffs them away and leaves skin smooth, refreshed, and with only fresh skin cells and no (or a lot fewer) dead ones.
The average life cycle of a skin cell is around 30 days (although it is a lot longer the older we get) but they don’t all renew at the same time. It would be handy if they did, as then we could just exfoliate once a month. Therefore, regular exfoliation means our skin is polished, fresh, and ready to absorb our skincare via young, alive cells.
AHAs are suited to dry skin because they exfoliate without sacrificing moisture. Look for an exfoliator with natural moisturisers like plant oils.
Combination or oily skin
AHAs work best on dry skin so if your skin is combination, the drier areas will respond well to acids like lactic or glycolic acids.
Oily and combination skin responds well to physical exfoliation as well because when those dead skin cells are removed, oil is less likely to get trapped and therefore less likely to cause breakouts.