Abstract
Objective To observe the efficacy of 755 nm picosecond laser and intense pulsed light in the treatment of facial freckles. Methods Sixty-six outpatients with freckles were randomly divided into two groups. They were treated with 755 nm picosecond laser (P755 nm) and intense pulsed light (IPL), respectively. Frequent freckles were analyzed before treatment and at 4 week after treatment. Results Both treatments had good curative effect, but the P755 nm group had better efficacy than the IPL group with significant difference. Conclusions 755 nm picosecond laser and IPL can treat freckles very well, and P755 nm group is superior to IPL. Key words: Picosecond, laser; Intense pulsed light; Freckles; Efficacy; Quantitative analysis
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