There's no going back once you've popped your eyebrow threading cherry. Seriously, it's a one-way ticket to better brows no matter what you're starting with. It's true: threading is significantly less painful than waxing. The hair is removed from the follicle, but it doesn't damage the skin. Brow shapes generally lasts two to four weeks. No doubt, eyebrow threading is the best brow grooming method for you.