Should I Wax the Bleached Hair Away Before I Started to Do Laser Hair Removel?

The laser basically needs a dark colored target to do its job. This is why It is much better to shave the bleached hairs. The remaining hair shafts which are darker in color will actually absorb the laser light. This is how the laser energy is able to enter the follicles which are then attacked by your immune system. The follicles then enter a resting phase. 

Waxing pulls hair out at the root. This modifies that hair's growth/rest cycle. Hair follicles are sensitive to the laser when they are actively growing hair and the follicles are all in different phases of growth. This is why multiple treatments are necessary; each treatment catches the next group of active follicles. If you tweeze or wax, you artificially put the follicles to rest, making it insensitive to the laser. Let the bleached hair grow out and shave for hair control during the period of your laser treatment.

Laser hair removal targets the pigmentation in the hair follicle.  The darker the hair, the better the laser will work.  If the root of the hair is I do not recommend waxing before your laser hair removal treatment because waxing will remove the deeper portion of the hair follicle and there will be no pigmentation for the laser to target.  I recommend shaving before your laser hair appointment.