KOOL-AID DIP DYE/OMBRE This method will fade slowly and eventually wash out completely after a few weeks. Essentially, you boil water, add five packets your choice Kool-Aid color/flavor and mix together in a bowl. Dip your ends for roughly 30 minutes, blow dry and style! You can also try food coloring in place of Kool-Aid, which may fade/rinse out faster