Exfoliate (verb)

1. Remove the dead surface cells from (the skin).
2. Remove a layer from (something) by rubbing or chemical means.

Origin:

Early 17th century (in the sense "strip off the bark of a tree"): from latin exfoliat- "stripped off the bark", from the verb exfoliare, from ex- "off" + folium "leaf".

Examples:

1. The woman exfoliated her skin to remove dead skin cells and improve its appearance.
2. The exfoliating scrub was used to remove dirt and oil from the skin.
3. The exfoliating mask was used to brighten the skin.
4. The technician exfoliated the client's feet to remove calluses.
5. The rock was exfoliated by the wind and water.