SandraHi,
Well, I have been waxing, bikini, upper lip and legs for over 15 years now. Well, my legs longer than my lip and bikini. The waxing has actually made my hair grow back finer. My mom has been waxing for over 40 years and has only one or two hairs left on her legs!
I have read that laser is permanent. I would look into the different types of lasers. Some places will offer a guarantee. They all say that a few sessions are necessary because not all hair grows at the same time. Like everything, it’s trial and error, right!
Sandra