Med Laser  
Review of picosecond lasers in non-pigmented disorders
Jun Ki Hong1, Joon Seok1, Sun Young Choi1, Kapsok Li1, Beom Joon Kim1, Kwang Ho Yoo2
1Department of Dermatology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
2Department of Dermatology, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University College of Medicine, Gwangmyeong, Republic of Korea
Correspondence to: Kwang Ho Yoo
Received: May 17, 2022; Accepted: July 4, 2022; Published online: July 26, 2022.
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Based on the principles of the selective photothermolysis theory, picosecond lasers can enhance the therapeutic effect on the target tissue and minimize damage to the surrounding tissue. Therefore, picosecond lasers have significant advantages over conventional laser techniques in terms of effectiveness, safety, and therapeutic effect on the pigmented skin. Additionally, picosecond lasers induce intraepidermal and dermal vacuole formation through laser-induced optical breakdown, which is associated with dermal remodeling by increasing dermal collagen and elastin formation. Based on these additional findings, picosecond lasers are reportedly effective in treating non-pigmented disorders, scars, and in cutaneous rejuvenation. Herein, we review the literature on the treatment of non-pigmented disorders by a picosecond laser and confirm its efficacy.
Keywords: Lasers; Scar; Rejuvenation; Striae distensae

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