One question

Suppose I do 6 treatments and get a 60% reduction in hair growth. Will I retain those results for good??

There are not yet any reliable long term studies to show just how long, “Long-Term Hair Reduction” lasts.

If you read the posts around here of the people who have had LASER and stuck around to keep us informed, you will see what their experience has been over up to 4 years. Just keep in mind, legs are a poor example because they loose hair over time with no treatment at all because circulation in the legs reduces as a person ages. That is the reason for support hose for geriatrics.

The best test of permanent hair removal will always be a male face.

Suppose I do 6 treatments and get a 60% reduction in hair growth. Will I retain those results for good??
I’d say for those hair follicles that have been treated, you will keep have fine hair. However, it is very likely that some hair follicles were completed missed out from the LASER. Some of those grow in the later time.