>>9522780You usually have 1 treatment every 4 weeks because that is the start of the next hair growth cycle.
20 sessions should definitely be enough for "permanent" results.
I say "permanent" because it's technically not guaranteed to be permanent (the only method guaranteed to be permanent as of now is electrolysis), but it is very likely that the hair will never come back, and if it does it will probably take 10 or more years.
It depends on the various things, though, like hormone balance, the stage of development of the hair (vellus or terminal), and how undamaged the hair follicles are.
I doubt you would be but don't take any steroids while having the treatment.
