Hi,
It really does depend on your area, maybe have a look around at salon or other therapists price lists to get an idea of the going rate. You could do a couple of quid off or something for first 5 clients having a certain treatment or something like that.
I wouldn't recommend doing ridiculous offers when you first start out as you will get the people that just want something for nothing as a one off and you won't see them again. You'll need regulars that help grow your business by word of mouth.
I could tell you my prices but where I am Beauty treatments cost more than they do in Birmingham (I have family there).
I had a customer the other day all the way from Leeds and she said she would pay half what she paid with me if she was back home!
Treatments I do are triple the price in London I've had clients tell me.
So it's very dependant on area I'm afraid! Hope that helps anyway!
X