Face Shaving between Face Laser Hair Removal Sessions?

I have never heard of paradoxical hair growth from shaving. Actually, you want to shave between treatments to get the hair short enough so that only a few mm stick above the surface. This way, the hair shaft is short enough that the laser can penetrate all the way to the root bulb and fully get rid of the hair permanently.

The cause of paradoxical hair growth after a laser session is not definitively known, but not only is this side effect extremely rare, it's unlikely to be caused by shaving. And ironically, paradoxical hypertrichosis is treated with laser hair removal, so even if you happened to experience this rare side effect, you would still continue on with your treatments as usual. Hope this helps!