perfect hair health, who is a "medical researcher" summed up the studies somewhere saying most studies performed at depths of 1.5-2.5 or something to that effect- I could try to dig up or be an easy search. Nevertheless, the whole Follica thing sating never to go below .8 is what now has me confused, Im pretty sure amongst the scale of responders, people will vary, if for no other reason that scalps vary in thickness at the very least (not to mention all the polygenetic things going on as well)..
Do you bleed a lot with this depth and has that increased or decreased with treatment sessions through time?