Why do color manufacturers not reccommend the use of heat when depositing color?
When heat interacts with ammonia, it makes 20-volume developer act like 30-volume. The color will be a 1/2 shade lighter, have a translucent effect, and makes the hair look duller and feel dryer. Q: How does Color Express additive help stop colors from fading up to 95% A: Anti-oxidants are positive free radicals which neutralize negative free radicals (i.e. ammonia, alkalinity of color, UV rays, polution, and the chemicals in styling products) which cause color to fade. This process works from within the hair.
