Framesi Professional Activator 30 volume developer allows you to lighten the hair while coloring by two or three levels, and allows more pigment to embed into the hair shaft. If your hair is not very damaged and you want a lighter and more long-lasting color, 30 volume developer can be a great option. If your hair is low porosity hair you may find that 30 volume developer works better as your hair is naturally more resistant to color. For best results use with framesi hair color and lighteners.