Should I go to my laser appointment even if there is no hair? I've had 6 sessions so far on my arms and legs. (Photos)

Treatment has had varying degrees of success. My next session is due soon (after a 6-7) week gap but there is hardly any hair. The therapist said it doesn't matter if there's no hair on the surface as they treat the follicles beneath the skin but im not sure that's true. Should I still go to the appointment or delay it a few more weeks?