How many treatments of lipodissolve or mesotherapy do you think I will need and approx how much will it cost?

I have seen mesotherapy range from $250-$450 an area my question is to do my thighs how much do you think is a fair price or a price i should expect, will it make a difference if Im not really over weight? And My second question is do you believe i will be able to see results after my first treatment generally speaking because i am not really over weight? I am 23, 5'6 a 128 pounds, do pilates 2 a week and hike 1 a week, i try to live a healthy life style..