So to me the easiest part about dying hair was putting the dye in the hair. Are used tinfoil and a plastic bag to finish the product and two separate my girlfriends hair. The problem with the last person had was that they didn't use the correct amount of bleach and they also didn't use tinfoil to separate the hair. I doing that because of bleach to get darker in some places and lighter in the other places. I learned that it's important to make sure he you leave the hair dye in for a certain time depending on your hair. My girlfriend left her hair dying for the same amount of So to me the easiest part about dying hair was putting the dye in there. Are used tinfoil in a plastic bag to finish the product and to separate my girlfriends here. I will not the last person I had was that they didn't use the correct amount of bleach in the house she didn't use tinfoil to separate the hair. By doing that because the bleach to get darker in some places in later in the other places. I learned that it's important to make sure you leave the hair dying for a certain time depending on your hair. My girlfriend left her hair dye and for the same on a time I did and her hair came out a lot more bright than mine did because my hair is darker