PicoSure/PicoSecond Laser Treatment Center

I have some melasma on my forehead.  This is basically small areas of blotchy hyperpigmentation (dark spots).  The condition is more common in females, but I am male, fair skinned.   Unfortunately, it has gotten worse with age and increased sun exposure here in Southeast Asia.  It is time to get something done about it.  
 

The laser of choice for treatment (and the only one I want) is the PicoSure Laser.  Can someone kindly recommend a good clinic with this machine? Quality of work and experience of the physician is much more important to me than cost.  Bangkok would be the preferred area, but I can also travel to Chiang Mai if there is an excellent clinic there.

Thank you in advance for recommendations.