Use of heat is necessary for results

Heat Activated Hair Color
Women modelling a hairdryer and the ONC Thermal Heat Cap
Two women sitting casually on a sofa playing cards wearing ONC NATURALCOLORS Thermal Heat Cap for heat-activated ONC NATURALCOLORS hair color dye

ONC does not fry the hair to deposit hair color into the core of the hair. The ONC Thermal Heat Cap holds body heat and helps to open the hair cuticles to let color in naturally.

As ONC NATURALCOLORS do not contain chemicals to open your hair cuticles. After the color mix is on your hair. Use medium heat from a hairdryer or our ONC Thermal Heat Cap. This opens the cuticles so the color can go into your hair. Only use heat on the roots or regrowth hair. The ONC Thermal Heat Cap is healthiest. As it opens the cuticles using trapped heat released from top of your head. It also prevents overheating, which dries hair out. Don't forget - USE HEAT!