Use of heat is necessary for results
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 towel, 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!