This invention relates to fabric treatment compositions comprising a textile compatible carrier and water insoluble particles having a layered structure comprising oxygen atoms and silicon and/or phosphorus atoms and comprising organic functional groups which are bonded to silicon and/or phosphorus atoms by direct covalent bonds between the silicon and/or phosphorus atoms and a carbon atom. A number of the compositions may impart anti-wrinkling ie, reduced crease formation or other benefits to fabrics washed or otherwise treated therewith.