When you first apply Manic Panic, the color molecules start to penetrate the hair shaft, giving you that gorgeous, vibrant hue. If you leave it in for too short a time, the color might not be as intense as you'd like. On the other hand, if you leave it in for too long, you might end up with over-processed hair - and trust me, that's not a good look!
Now, here's a fun fact: did you know that Manic Panic was originally created by two punk rock sisters, Tish and Snooky Bellomo, back in the 1970s? These gals were all about self-expression and individuality, and their iconic hair dye has been helping people express themselves ever since!