Demi-DeveloperPremium Creme DedicatedDevelopers were formulated for use with Premium Creme permanente and demi formulas. They provide superiorviscosity and create optimal bowl-and-brush application. Premium Creme Demi Permanente DeveloperMix with equal parts Demi Permanente Premium Creme and dedicated developerFormula deposits color only, does not lighten, covers up to 50% grayEnhances, deepens, refreshes