THE PRESENT INVENTION RELATES TO A COSMETIC COMPOSITION, FOR INSTANCE AN ANTI DEODORANT COMPOSITION, COMPRISING AN AT LEAST PARTIALLY DEHYDRATED-ALUMINIUM SULPHATE SALT AND A CARRIER LIQUID. THE INVENTION FURTHER RELATES TO A METHOD FOR PREPARING A COMPOSITION ACCORDING TO THE INVENTION, COMPRISING COMBINING A BURNT ALUMINIUM SALT WITH THE CARRIER LIQUID.