Dr. Olga -   I have to confess, I'm a little worried that you are planning to open a clinic to treat patients in Jordan and don't know the answers to these questions.  Could you consider going to one of the European or Asian IMCAS meetings to learn more about all of these treatment modalities?   Google IMCAS  and it should come up. 

 On your laser question, if you are in Jordan, then more of your patients will be Skin Types III-V.  You definately want to be researching Nd:YAG lasers - don't even think about getting an IPL based system if your patients are generally darker.    Good luck and study hard!!!  Dr. I