Kool-Aid hair dye lasts until you grow new hair? Wrong, KoolAid hairdye should last up to about a couple months depending on how long u leave in the koolaid, conditioner, and water mixture in for... i have heard a wide variety of times such as 5, 20, 30 minutes and from there up 2 ten hours... it depends on how bright and vibrant u want ur colours to be
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umm nope (: it is semi permanent it will not wash out immidiatley it will stay on and will start to fade in like 2-6 weeks and for better results this will work on bleached or light hair hope that answerd you question (: dueces
No, Kool Aid hair dye will not stay in your hair forever, although it may stay in for many weeks.