L'Oréal Oreor 30 Volume Creme Developer is a professional hair color developer designed to provide consistent, even results when used with permanent hair color or lighteners. This 9% formula helps lift hair up to three levels. The rich, creamy consistency allows for easy application and improved control during coloring or lightening services. Ideal for salon and professional use. Benefits Provides up to 3 levels of lift Designed for use with hair color and bleach Creamy formula for smooth, even application Supports consistent and uniform results Professional salon-quality developer Suggested Use Mix with hair color or lightener according to instructions. Apply evenly to hair. Monitor processing time carefully. Rinse thoroughly once desired result is achieved.