Subrina Professional CremeOxyd is an important hair oxidizing lotion, essential when using dye or bleach. Designed to work with the dye or bleach, it activates the chemical reaction that brings about the desired transformation in the hair. The strength of the oxidant (usually measured in volumes) can affect the level of lift or deposit of the color. The specific instructions of the dye or bleach being used should always be followed to achieve the best results.