Q-Switched 660-nm Versus 532-nm Nd: YAG Laser for the Treatment for Facial Lentigines in Asian Patients: A Prospective, Randomized, Double-Blinded, Split-Face Comparison Pilot Study.

Background: Q-switched (QS) 532-nm lasers are widely used to treat solar lentigines.

Objective: To compare the efficacy and safety of 660-nm and 532-nm QS neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers in the treatment for lentigines in Asians.

Materials And Methods: The halves of each face (randomly chosen) of 8 Korean Fitzpatrick Skin Type III-IV women with facial solar lentigines were treated with either 660-nm or 532-nm lasers.

A prospective, split-face, randomized study of the efficacy and safety of a novel fractionated intense pulsed light treatment for melasma in Asians.

Background: Intense pulsed light (IPL) has been reported to effectively treat melasma in previous studies, but an aggravation of pigmentation was noted. Fractionated IPL is a novel technique in which microsecond-domain fractionated pulses are delivered to the target area.

Objective: To compare the safety and efficacy of low-fluency, frequently scheduled fractionated IPL and conventional IPL for melasma treatment.