exfoliate

To exfoliate means to remove dead skin cells from the surface of your skin. This process isn't just about beauty; it's a natural biological function our bodies should be doing on their own, but sometimes they need a little help. Dead skin cell buildup can lead to clogged pores, dullness, and even dryness.

Exfoliation comes in two main forms: physical and chemical. Physical exfoliation involves using something abrasive—like scrubs with sugar or salt, exfoliating brushes, or loofahs—to physically slough off the dead cells. Think of it as gently sanding down a rough surface. Chemical exfoliation, on the other hand, uses acids (like alpha-hydroxy acids/AHAs or beta-hydroxy acids/BHAs) to dissolve the bonds holding those dead skin cells together.

You'll most often hear "exfoliate" used in the context of skincare routines. People might say they "exfoliate twice a week" or that a certain product is designed to "gently exfoliate sensitive skin." However, the term comes from the Latin word exfoliare ("to strip off leaves"), and it can also be used more broadly to describe anything that sheds layers. In geology, for example, rocks exfoliate when their outer layers scale or flake off because of weathering. In botany, some trees exfoliate by shedding their bark in large pieces.

So, whether you're aiming for clearer pores or describing the natural transformation of a mountain face, to exfoliate is about revealing something fresh and new by getting rid of what's old and worn.