Solum Fullonum (Fuller's Earth)

Fuller's earth (Solum Fullonum) is a natural clay made of hydrous aluminum silicates and minerals. Formulators use it for strong oil uptake, a clean, matte finish, and dense slip in masks, cleansers, and scalp or body treatments.
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Ingredient Snapshot

Overview
A natural clay that soaks up oil for a clean, matte finish.
Category
Oil Control, Cleansing
Type
Clay

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

It quickly cuts through greasiness to deliver a lasting matte look, and helps lift buildup from pores for a fresher, decongested appearance.

Uses In Skincare & Cosmetics

It's common in wash-off face masks and purifying cleansers, and used in scalp masks and body packs for sweat-prone or congested areas.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

It's typically safe as a non-reactive clay, but it can be drying or mildly irritating on sensitive skin, so limit wear time and follow with hydration. Avoid inhaling loose powder during mixing or application.

Is Solum Fullonum (Fuller's Earth) a Good Ingredient?

It rates Good for consistently effective, strong oil absorption and a clean, matte finish, backed by long-standing cosmetic use. It may feel drying if overused, so balancing it with humectants or shorter contact times helps, which is why it stops short of Great.

Products with Solum Fullonum (Fuller's Earth)

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