Waxing - How long should hair be for optimum results?

[Odelay]

I know, i know, yet another waxing question, but there are too many previous posts to wade through looking for an answer

i am about to book my first ever bikini and leg wax, how long do i need to let the hair grow so there is something for the wax to grab?

Bumpity bump

Anyone?

I'm a beauty therapist and would say leave them for at least 3 weeks for a good result, some might be too short at that though, so the next session might be more effective, the aim of the game is to have a few hair free weeks then a hairy week then get waxed. So no shaving in between appointments so all the hairs are growing at the same time and are the same length. Hope this makes sense and maybe take a painkiller half an hour before you go if it's your first time.

Wonderful. Thank you