Abstract: This article reviews the application research progress of 2 940 nm erbium laser in medical cosmetology in recent years. By studying the skin condition after laser operation, it provides ideas for postoperative skin care, aiming to alleviate postoperative skin discomfort, reduce postoperative adverse reactions, and to promote postoperative wound healing and improve patient satisfaction with treatment.
Key words: 2 940 nm erbium laser; medical cosmetology; skin barrier; care products; wound healing
（Acta Laser Biology Sinica, 2022, 31(1): 007-011）