The Extra Brights are 100% ammonia free permanent oxidative hair colors and with the exception of Violet they contain no PPD or PTD. They are not direct dyes or concentrates and contain no base tones. The Extra Brights are pure color. As such they need to be mixed with an activator and processed like the colors in the Organic Color Systems line. The Extra Brights from Organic Color Systems are the perfect addition to one of the most creative and versatile professional color lines available today.