Abstract: A dispenser for paste-like products comprises a headpiece including a discharge channel with a dispensing orifice, and a pump chamber the volume of which changes with the application of an external load and which is connected by a communication path, sealed by a check valve which can only open in the direction of the dispensing orifice, to said discharge channel, and said headpiece is connected to a container, the end of the container away from the headpiece being provided with an opening inside which is located a piston sliding in sealing engagement along the container interior wall, said connection between the headpiece and the container possibly being detachable. The interior of the container communicates with the pump chamber by a check valve, which can only open in the direction of the pumping chamber and which is mounted in a support base extending between the pump chamber and the container interior.