What is an effective liver spot laser treatment?

A Q-switched Nd:YAG laser, using a wavelength of 532 nm, is a very effective laser. The Alexandrite laser (wavelength 755 nm) can also an effective option, and if both lasers are available test areas can be treated to investigate which is optimal to use for the specific skin type. For darker Asian skin, it is important to avoid sun exposure and a tan, and use effective sun protection before as well as after the laser treatment. A prescription lightening cream will be needed after the treatment to treat "rebound" darkening which is common in darker skin types. Select a board-certified cosmetic dermatologist who has experience with laser treatments for darker skin. 

The newest laser from Fraxel, the Dual, has 2 wavelengths - 1550 and 1927. The 1927 is a brand new wavelength, with no other laser company at this time having it. It has no downtime and can resolve most pigmentary issues with 1-3 treatments.

There is some bronzing of the skin of the face for a few days and then that peels off with the pigmentation. Particularly with Asian skin, I find that IPL is hard to get rid of spots because you have to turn the settings lower (because the regular skin will compete for the IPL heat). I would consider hydroquinone if you do the 1927 after the treatment.