Enercos Coloray Hydrogen Peroxide Solution 9% is a professional-grade hair coloring developer containing 30 volume hydrogen peroxide. This 150ml solution is designed for use in hair coloring and bleaching processes. This is a professional hair care product containing 9% hydrogen peroxide (30 volume developer). It should only be used as directed by hair care professionals. The product comes in a red bottle with secure cap closure. As this is a chemical product, proper safety precautions should be followed during use.