After shaving my unibrow for 3yrs, I had 3 laser sessions but don't have the form I want. The space is noticeable

Thank you for your question. Hormones create hair follicles and for the face your hormones are the strongest on the body.  Your hair grows in three different phases and it is required for you to have a laser hair removal treatment done every 4 weeks to catch the hair in the growth phase.   You will notice your hair thin out and the growth cycle slow down after each treatment. After the hair is completely gone after 6-8 treatments it is recommended to have a maintenance session done every 6 months to a year.  Please consult with a physican before having any treatments done .