stayed in blonde hair way longer than instructions indicated [SEP] did this in my older daughters hair in a peekaboo style used bleach to lighten her dark hair first turned out great put a couple little streaks in her little sisters blonde hair too my dark haired girl has no pink left sept to dec but my blonde girl still has obvious streaks the color was fun and not too hard to apply took about minutes including bleach time on dark hair wish it would wash out of my preschoolers hair