How long should my hair be for an effective waxing session?

For the most effective waxing, hair should be about 1/4 inch long, which typically takes about 2-3 weeks of growth after shaving. This length allows the wax to grip the hair properly, ensuring a cleaner and more thorough removal. If your hair is too short, the wax may not be able to adhere well, leading to less effective hair removal.