I started laser hair removal on my face about a year before I started on hormones. Obviously, speak to the expert who will be giving you the treatments, but the information that I received was that the combination of lighter skin colour and dark hair results in the best treatment with laser. For me, it certainly required several passes, spaced 6 weeks apart as I was told that, for me, that was how often the various hair folicles were moving through their growth cycles. For me, the face was a very sensitive body area with thick hair that absorbed a lot of heat. For that reason, the first few passes had to be at a very low energy level compared to the rest of my body to prevent burns to the surrounding skin. (I started laser on my entire body in 2013, a good 3.5 years before starting hormones). This is a very long process, especially for those of us who were quite hairy to start. Unfortuantely, I'm at the age where probably 40% of my beard had already turned grey. Laser does not work on grey hair, so I'm now enduring electrolysis on my remaining beard hairs.