Vehicle brake system, comprising: a first main cylinder with a first main cylinder connection, a first actuating device with a first actuating connection, wherein the first actuating device is formed as a first auxiliary cylinder which comprises a first auxiliary cylinder chamber and a first auxiliary cylinder piston arranged in the first auxiliary cylinder chamber, and the first actuating connection is an inlet and outlet of the first auxiliary cylinder chamber of the first auxiliary cylinder, wherein the first main cylinder connection is in flow connection with the first actuating connection, and the first actuating device is operable with the first main cylinder, a first brake circuit which is provided between a pump and a first wheel cylinder, wherein the pump in the first brake circuit is operable to generate pressure and to move a fluid within the first brake circuit, and a first valve device is provided in the first brake circuit, wherein the first valve device is movable between a first configuration, in which a flow connection is produced between the pump and the first wheel cylinder, and a second configuration, in which a flow connection between the pump and the first wheel cylinder is prevented, and the first valve device is operable with the first actuating device in such a manner that, when the first actuating connection is acted upon with pressure by the first main cylinder, the first valve device is movable with the first auxiliary cylinder into the first configuration, characterized in that the first valve device (60, 120) has a first restoring element and a second restoring element for restoring into the second configuration. a first main cylinder with a first main cylinder connection, a first actuating device with a first actuating connection, wherein the first actuating device is formed as a first auxiliary cylinder which comprises a first auxiliary cylinder chamber and a first auxiliary cylinder piston arranged in the first auxiliary cylinder chamber, and the first actuating connection is an inlet and outlet of the first auxiliary cylinder chamber of the first auxiliary cylinder, wherein the first main cylinder connection is in flow connection with the first actuating connection, and the first actuating device is operable with the first main cylinder, a first brake circuit which is provided between a pump and a first wheel cylinder, wherein the pump in the first brake circuit is operable to generate pressure and to move a fluid within the first brake circuit, and a first valve device is provided in the first brake circuit, wherein the first valve device is movable between a first configuration, in which a flow connection is produced between the pump and the first wheel cylinder, and a second configuration, in which a flow connection between the pump and the first wheel cylinder is prevented, and the first valve device is operable with the first actuating device in such a manner that, when the first actuating connection is acted upon with pressure by the first main cylinder, the first valve device is movable with the first auxiliary cylinder into the first configuration, characterized in that the first valve device (60, 120) has a first restoring element and a second restoring element for restoring into the second configuration.