Moroccan Lava Clay
Rhassoul clay
No meaningful concern for most people; irritation is possible but rare.
Also written as: Rhassoul · Ghassoul · Rhassoul Clay · Moroccan Red Clay
What it is
Moroccan lava clay, better known as rhassoul or ghassoul, is a smectite clay mined from deposits in the Atlas Mountains. It has been used in North African bathing traditions for centuries as a soap substitute for skin and hair. Like other smectites it swells in water, absorbs oil and forms a smooth spreadable paste.
What it does well
Cleanses and absorbs oil without surfactants
Rhassoul lifts oil and dirt physically rather than chemically, which is why it appeals to people whose skin reacts to detergents. The evidence base is centuries of use rather than controlled trials.
Traditional use
Worth knowing
Can be drying with frequent use
As a swelling clay it removes sebum efficiently, and using it several times a week can leave skin or hair feeling stripped. It carries the same trace mineral content as any mined clay.
Matters most toPeople with dry skin or hair, or a compromised barrier.
Where the EU stands
No specific restriction
Not restricted under the EU Cosmetics Regulation; listed in CosIng as a smectite clay mined in Morocco, with no conditions of use.
