How long does your hair have to be? How long will it last? What's the difference between a Hollywood and a Brazilian? Okay, chill out. Breathe. We're going to clarify.

To guarantee maximum smoothness and minimal discomfort, there are a few rules of thumb we implore you to follow.

Does it hurt? I mean, we would really love to say no. But (you guessed it) – yep, yep it does hurt. But, there are nifty ways to minimise discomfort.