Introducing Beauty Track Hair Color Developer Vol 10, 20, 30, 40 Hydrogen Peroxide, a professional-grade hair coloring essential in a generous 940ml bottle. This versatile developer is specifically formulated to work seamlessly with hair color creams and bleaching powders. The Vol 10, 20, 30, 40 strength makes it ideal for gentle processing and achieving reliable results. The convenient squeeze bottle design features precise dispensing control, while the secure cap prevents spills during storage. Perfect for salon use or at-home application, this developer helps achieve consistent color results when mixed with your preferred hair dye. The large volume ensures multiple applications, making it economical for regular use. Store in a cool, dry place and always perform a patch test before use. Suitable for professional and personal hair coloring needs.