the.com/exfoliation

means The process of removing dead, dry skin cells from the surface of your skin to reveal fresher skin underneath.

from From Latin 'exfoliare' — 'ex' (off) plus 'folium' (leaf) — literally 'to strip of leaves.' The word was originally used for trees shedding foliage or rocks and bones flaking off in layers, long before it got recruited into skincare to describe your face shedding its own dead layers like a tree dropping leaves in autumn.