Many of you sent messages to my email about my hair in my story about eating black pudding in England, and noticed that my hair wasn't the shade it is now. How observant of all of you! Yes, during my trip overseas, my hair was purple and blue. Not a dramatic dye job, but one done carefully in a dorm room sink in a manor-turned-college, and rinsed in the showers across the hall. I did mine with temporary hair dye, and it lasted about 2 weeks. When I returned home, it was all but gone. But since people seem to be messing with their hair in quarantine, there's a trend resurfacing that I want to warn you against: Kool-Aid hair dye.
The promise of the drink mix dyeing your hair a bright color for pennies is tempting indeed, but proceed with caution. Kool-Aid is made with food dye, not hair dye, and so it will stain your hair instead of coloring it properly. That is to say nothing of how the ingredients might react with your hair, which could vary depending on the type of hair you have. But the main fear I have of it comes from personal experience. A dear relative of mine (who will be anonymous) once dyed her hair with Kool-Aid, and it looked great, felt comfortable, and was everything she hoped-- for a while. Soon, when she hoped it would wash out, her blonde hair clung to the food dye in Kool-Aid too well, and she ended up with badly faded streaks. Thank goodness she didn't do her whole head, or she might still have a pastel hairdo, and not in a good way!
There are a lot of success stories out there, but consider using a temporary or even semi-permanent dye. It's better for your hair, and you will have a better idea of when it might come out naturally. Nobody wants to be stuck with a color they hate!