Cool How Long Do I Leave Ion Permanent Hair Color On Ideas. Web it can be 30 to 45 minutes if you use 30 to 40 volume developer mixed with your ion hair dye. Web the duration for leaving ion permanent hair color in your hair entirely depends on the specific product you use, as instructions may vary.

However, the time frame varies considering the. Web if you’re using ion hair color, the company recommends putting it on dry hair. Web 1 how long to leave permanent hair dye in your hair.