Can laser hair removal be done every 2 weeks on the face?

My clinic recommends getting laser on the face at two week intervals due to the fact that I haven't noticed any hair fall out between sessions. I questioned this as I thought 4 weeks is recommended between treatments but they said that this is only applies to every other area of the body except the face which can be done at 2 week intervals. I would like to know if it is common to have treatments every 2 weeks and am I likely to start noticing hair shed by doing this instead of every weeks