We recommend the Theradome be used 8 hours after you color your hair, but only when your hair is dry. Also, hair stylists recommend that you do not wash your hair 48 hours after having your hair colored.
The reason why we recommend the helmet be used 8 hours after and not any sooner is because the hair will still be wet from the hair coloring treatment. Putting on the helmet beforehand can cause the hair coloring to stick to the inside of the helmet, covering up or obstructing the lasers which will be blocked by the hair coloring.
Also, our lasers accelerate the cuticles to close after a hair coloring treatment which results in much better results such as less frizziness and longer lasting coloring due to cuticles closing with photons instead of chemicals.