Fuller's Earth

AKA: Fuller's earth clay, Montmorillonite clay

Synthetic

Not Clean

OriginFuller's earth is a naturally occurring hydrated aluminum silicate clay mined from sedimentary deposits worldwide. The raw clay is extracted through mining, then refined, dried, and ground into fine powder for cosmetic use.

English Fullers Earth,Solum Fullonum (EU)

CAS #

8031-18-3

Form

Powder

Skin Types

●all-skin-types

Best For

Oiliness

Pregnancy & Breastfeeding Safe

Yes

Functions

Abrasive

Absorbent

Bulking

Opacifying

Anticaking

Gel Forming

Anti-Inflammatory

Moisturizing

Improves Elasticity

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

CIR

Safe with qualifications (safe as used; data insufficient for products that may be incidentally inhaled)

Pregnancy

Yes

Concentration Guide

CIR's newest survey reports no concentration of use.

CIR · 2022 survey

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR