Because of the natural fallacy, the word "chemical" could be a scary thing to hear. But, just because chemicals are a factor doesn't mean it's bad.
Instead, chemical products can be a face game changer, as they can calmly remove dead skin and oil, just like physical exfoliation, but in a much gentler way.
Depending on your skin type, which also factors into pH, there are a range of peels that use alpha hyrdoxy acids and beta hydroxy acids (BHAs) to effectively take the junk out of your face. One type of peel includes lactic acid, which is milk-based, and gently helps those with sensitive skin or first-timers. But again, test it first!
Additionally there are cleansing pads that also exfoliate the skin using chemicals.