The Beautician is found in the Market. (services are by AP )
Using the Beautician will allow you to change your Hair style/colour aswell as your make up and eye colour.
Beautician can also Change Body Size and Voice
The Beautician also features exclusive Hair styles and Makeup not found when you initally make your character.
Make Up option : reverts your last changes (this option uses Gold and not AP)
For Everything the Beautician Offers Check Beautican Options Page.