If you are looking to dye your hair you are probably are wondering how to choose a hair dye, there are so many different types available on the market. One question that needs to be answered before you decide to dye your hair is what is permanent hair dyes.

Knowing the difference between the different types of hair dye is important because it allows you to choose the best type of hair dye for your needs. Not knowing the difference can be harmful because you can end up making a huge mistake, and then having to pay dearly at the salon to have it fixed.

Permanent hair dye is just what the name says it is hair dye that is able to soak into the hair shaft to change the color of the hair shaft. The permanent hair dye gets into the hair shaft because of the ammonia in the hair dye, which causes the hair shaft to swell, and that allows the hair dye to soak into the hair shaft. The one thing that makes permanent hair dye different from other types of hair dye is that it does not wash out, hence the name permanent hair dye. Although permanent hair dye will not wash out it can fade over time or be removed in other ways.

Something else about permanent hair dye that you need to be aware of is that if you use it you will need to continue to use it on a regular basis. The reason for this is that with permanent hair dye your new hair that grows in every four to six weeks is going to be in your natural hair color, you must reapply the permanent hair dye to your roots to keep your hair the same shade. Permanent hair color is also the only sure fire method to lightening dark hair, but it is a two-step process.