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exfoliate

eks-FOH-lee-ayt /ɛksˈfoʊlieɪt/

verbB2SATTOEFL

conversationalprofessionalscientific

To wash or rub (a part of the body) with a granular substance or chemical to remove dead skin cells from the surface.

Can refer to physical scrubbing (scrubs, brushes) or chemical peeling (acids, enzymes) that accelerates the skin's natural shedding process.

The story behind the word. This word comes from the Latin 'exfoliare', which literally meant 'to strip of leaves'. It was originally used in botany to describe plants shedding leaves, and in geology to describe rocks flaking off in layers, before skincare professionals adopted it to describe shedding layers of dead skin.

Word relationships

scrub: Scrubbing is a physical action of rubbing hard to clean, while exfoliating is the specific cosmetic goal of removing dead skin cells.
peel: Peeling usually implies a chemical process that causes skin to flake off in sheets, whereas exfoliating is a broader term for any cell-removal method.

Commonly confused with

moisturize: Exfoliating removes dead skin cells to clear the surface, while moisturizing adds hydration to protect and soften the skin.

Word family

exfoliation (noun): The act or process of shedding or removing dead skin cells.
exfoliant (noun): A cosmetic product or agent used to exfoliate the skin.

Collocations

exfoliate skin
gently exfoliate
exfoliate daily

Example sentences

"It is crucial to exfoliate your skin the day before waxing to remove dead cells and ensure a cleaner pull." A beauty routine recommendation.
"This gentle scrub uses apricot kernels to exfoliate rough patches on the elbows and knees." A skincare product description.

Memory hook

Think of 'EX-foliate' as stripping away the dead 'FOLIAGE' (leaves/dead skin cells) from your body's surface. Strip away the dead leaves (skin cells).

When not to use

Do not use in geological contexts (where rocks shed layers) unless you are writing technical geology papers, as the skincare meaning is far more common today.

Fun facts

The human body naturally sheds about 30,000 to 40,000 dead skin cells every single minute, meaning we completely replace our outer skin layer every 2-4 weeks.