Logona Ghassoul Clay Powder Gentle cleansing for skin and hair. 100% Detergent Free - so ideal for Sensitive Skins, especially Eczema. Logona Rhassoul clay offers particularly gentle cleansing – after all, its cleaning properties are based on a purely physical active principle: when mixed with water, rhassoul clay binds dirt and oil particles, making them easy to rinse out. Also known as Rhassoul Clay. Vegan.