Oxidant developer cream lotion in 30 Volumes (9%), to be used with Goldwell Topchic Colors. Creamy-smooth consistency for the ideal spreadability and perfect adherence of color to the hair. Bottle shape for ideal handling, optimal squeezing and perfect compatibility with the Depot Can System.Use it with Goldwell Topchic series 2-10 to have two levels of lift; mixing ratio lotion:color 1:1.Use it with Topchic Highlift series 11-12 to have four levels of lift; mixing ratio lotion:color 2:1.