Fuller's Earth
molecular structure · PubChem
AKA: Fuller's earth clay, Montmorillonite clay
Synthetic
Clay
Not Clean
English Fullers Earth,Solum Fullonum (EU)
CAS #
8031-18-3
Form
Powder
Functions
Abrasive
Absorbent
Bulking
Opacifying
Anticaking
Gel Forming
Anti-Inflammatory
Moisturizing
Improves Elasticity
Traditional Use
Named after the fulling process used by cloth workers in medieval times, this clay has been used for centuries to remove oils and impurities from fabrics and skin. It was historically applied as a poultice for skin conditions and oil absorption in traditional European skincare.
Skin Types
●all-skin-types
Best For
Oiliness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR