To get those white hairs you will need electrolysis. Laser picks up the hair pigment under the skin. If the hair is dark it gets zapped, If blond, the hair just absorbs the energy. If all you need is to do is your lip than about four sessions should take care of it. I am about at the end of my electrolysis. So far I have had forty appointments. $2400 so far. But once it's done, it's done. Not so with laser, Avg face 30,000 hairs. Avg hairs per hour with a good electrologist 300 - 350. You might try dermaplane razors. They are mini straight razors that shave extra close and also exfoliate the dead skin making your skin smoother.