The Subrina Professional hydrogen peroxide lotion is a crucial component when using hair dye or bleaching products. It is designed to work in conjunction with the dye or bleaching agent to trigger the chemical reaction that results in the desired transformation of the hair. The strength of the hydrogen peroxide (usually measured in volume) can affect the level of lift or color deposit. It is important to follow the specific instructions of the dye or bleaching product to achieve the best results.