On another note...you haven't said what body part you want the hair removed from. If it's facial...be very careful as some kinds of facial hair will come back darker and longer.
NOT...what you want as an end result.
Last year I had my eyebrows done along with my daughter for her upcoming wedding. This is a procedure I've never done before. Since then I have eyebrow hairs where they never grew before. Ugg!!! Had I have known this I would never, ever had this done. Help...I'm now working on a uni-brow!!!