To be completely honest there is no definitive answer anyone can tell you, if someone does try to tell you an exact answer there plain old lying to you. What we can say with the decade of laser hair removal experience we've had with thousands of hair removal patients as well as numerous case studies from the laser manufacturer is this...Six laser hair removal treatments can reduce 80-90% of your body hair if your the best case candidate having both dark hair and light skin or complexion. Client results will always vary with their hair color, skin tone, harmone levels, age, exposure to sun, hereditary, etc.