Home hair colour kits are the ideal solution for todays hectic lifestyles. You can get great results without the expense and time spent at a professional salon. With the wide variety of colours and products available, the effects that you can create are endless. Permanent colour doesnot wash out, but semi-permanent does and usually starts to fade after 3 to 5 weeks, depending on how often you shampoo. If you are covering gray, special kits for touching up roots are now available. Applying colour only to the roots spares the rest of your hair from further dryness or damage. Be sure to test the colour first to prevent an allergic reaction. In between colour applications, make sure to use conditioners to hydrate and prevent any further drying effects to your hair.