This paper presents a clock booster circuit which is capable of generating more than 1 V from an input of 300 mV when three identical stages are cascaded. Our proposed circuit operates with a supply of 300 mV. The proposed circuit reduces leakage with the help of the adaptive body effect. The charge leakage between adjacent stages of clock booster is prevented with the help of a circuit that blocks the reverse flowing charges. The simulation results show that the proposed circuit gives an output more than 1 V while for similar conditions a conventional clock booster provides less than 500 mV.