What is the difference between valve cleaning agent and fuel additive and fuel treasure?

Hello, these are all carbon deposit cleaning materials commonly used in automobiles. The first one can clean the throttle and intake manifold. Both fuel cleaner and fuel treasure are added to the fuel tank, and the carbon deposit in the fuel pipeline, fuel nozzle and combustion chamber is cleaned by the pumping action of the fuel pump. However, fuel treasure is generally bought by gas stations, and repair shops and 4S shops are specialized cleaning agents, which are different.