Why doesn't hair fall out from upper lip after laser hair removal treatment?

Greetings...Hair on the body respond well when compared to Facial hair which may need frequent and prolonged sessions. After 8 sessions your hair would have become less visible and thin which is a sign of good result. Consult your physician regarding maintenance laser sessions. Yes, you can continue applying moisturisers. 

White skin and dark hair should respond well to laser hair removal.  You may just require more treatments. Hormone tests should be done on the first or second day of your menstrual cycle before 9 am.  If the tests were done randomly, they will not give a true value and should be repeated with the proper timing.