A method for manufacturing a liquid silicone rubber composition including a preparation step, a mixing step, an introduction step, and a curing step. The preparation step includes providing at least a first gel and a second gel. The mixing step includes mixing the first gel and the second gel to form a mixed gel. The introduction step includes introducing the mixed gel into a mold. The curing step includes heating up the mold to cure the mixed gel to form a liquid silicone rubber composition.