The invention relates to a shaped solid cleaning composition, especially in bar format, which utilises the detergency properties of new materials which are more efficient, relatively inexpensive and are environmentally friendly alternatives to conventional soaps or synthetic surfactants. The present invention provides for a shaped solid cleaning composition which comprises a specific amount of structuring agent and a specific amount of a treated particle. The precursor of the treated particle is an asymmetric 1:1 or 2:1: clay particle having alternating tetrahedral and octahedral sheets terminating with a tetrahedral sheet at a first external surface plane and an octahedral sheet at a second external surface plane. Either or both of said external surfaces is attached with a fatty acid or derivative thereof.