A Retrospective Analysis of the Efficacy and Safety of Q-Switched and Picosecond Lasers for Treating Becker’s Nevus

Table 1

Detailed information of different types of lasers.

Types of lasers	Parameters	Endpoint
Q-switched 532-nm Nd: YAG (Medlite C6, HOYA ConBio, Fremont, California, USA)	3 mm, 1.4–2.2 J/cm^2	Moderate whitening
Q-switched 694-nm ruby (SINON, Wavelight, Erlangen, Germany)	6 mm, 2.0–3.2 J/cm^2	Moderate whitening
Q-switched 755-nm alexandrite (Accolade, Cynosure, Boston, Massachusetts, USA)	3 mm, 6.0–8.0 J/cm^2	Moderate whitening
Q-switched 1064-nm Nd: YAG (Medlite C6, HOYA ConBio, Fremont, California, USA)	6 mm, 3.5 J/cm^2	Moderate erythema with mild whitening
Picosecond 755-nm alexandrite (Zoom handpiece, Picosure; Cynosure, Westford, MA)	2.4–3 mm, 2.83–4.42 J/cm^2	Moderate whitening
Picosecond 755-nm alexandrite (Focus handpiece, Picosure; Cynosure, Westford, MA)	6 mm, 0.71 J/cm^2, 3–5 passes	Moderate erythema
Picosecond 1064-nm Nd: YAG (Resolve handpiece, PicoWay; Candela, Wayland, MA)	6 × 6 mm, 2.1–2.9 mJ/μbeam, 4 passes	Moderate erythema with pin-point petechiae