French Green Clay

French Green Clay

AKA “Wilkonite, Alum bentonite, Bentonite magma, Colloidal clay, aluminum silicate hydrate, aluminium silicate hydrate, INS NO.558, INS-558”

Mineral

Ingredient Facts

French green clay

AKA: Wilkonite, Alum bentonite, Bentonite magma, Colloidal clay, Aluminum silicate hydrate, Aluminium silicate hydrate, INS NO.558, INS-558

Mineral · Soothing · EWG: 1

Synthetic

Soothing

Skin Conditioner

Clay

Mineral

Clean

French Green Clay gently purifies and detoxifies skin by drawing out impurities, leaving your complexion feel refreshed and balanced.

Solubility Insoluble in water and common organic solvents

Formula

Al2H2O12Si4

Mol. Weight

360.31

Form

Powder

State

NKRA; Dry Powder, Pellets or Large Crystals; Dry Powder; Other Solid; Dry Powder, Other Solid

See origin →

Functions

Absorbent

Skin Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Soothing

Calms redness, irritation, and inflammation. Your skin's chill pill — great for sensitive, reactive, or post-procedure skin.

Quells irritation

Reduces redness

Reduces swelling

Strengthens skin barrier

Traditional Use

Used for centuries in European skincare, particularly in France, for oil absorption and detoxification. Prized for its high mineral content and greenish color from iron oxide and chlorite, it became a staple in traditional spa treatments and home remedies for oily and problematic skin.