How To Dip Dye Your Hair With Kool-Aid - Find unsweetened packets (better so your hair isn't sticky). For every packet you use add one cup of water and boil it in a saucepan. Once boiling, pour the mixture into a heat proof cup or bowl. Dip the hair you want to streak or dip dye into the cup and leave it in there for five minutes (yes head over a bowl is annoying). When you remove it hold paper towel on the hair until it is dry enough that it doesn't drip. That's it! Should last 2-6 weeks!