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Ingredient guide
alumina
In short
Alumina is a finely milled mineral powder used to adjust texture and provide controlled physical exfoliation. It also helps powders look smoother and more even.
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Works for
Texture
Skin type
Oily
Best used
Anytime
What it is
Inert mineral powder used as a micro-abrasive in physical exfoliants and as an opacifying and texture-modifying agent in pressed powders; synthetic corundum spheres can be sized precisely for controlled, consistent exfoliation intensity.
Also found as
Related
Where to find it
Dermalogica Daily Microfoliant
Clinique 7 Day Scrub Cream Rinse-Off Formula
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Common questions
It acts as a micro-exfoliant in scrubs and helps give powders a smooth, even finish. Its particle size is controlled for consistent, gentle polishing effects.
It can support oily skin when used in powders by improving texture and helping products apply more evenly. In exfoliants, it offers gentle physical refinement.
You’ll find it in physical exfoliators, pressed powders, and some long-wear makeup formulas for texture control.
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Personal guidance only · For clinical concerns, see a dermatologist.