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http://dx.doi.org/10.15230/SCSK.2022.48.3.245

The Effects of Combined Phototherapy (Low-level Laser and Light-emitting Diode) on Hair Loss and Scalp Conditions  

Jeon, Soha (Amway Korea Co., Ltd.)
Lee, Jeongok (P&K Skin Research Center Co., Ltd.)
Jo, Hae (Amway Korea Co., Ltd.)
Kang, Yunkyeong (Amway Korea Co., Ltd.)
Lee, Jeesun (Amway Korea Co., Ltd.)
Lee, HaeKwang (P&K Skin Research Center Co., Ltd.)
Lim, Kyungmin (Graduate School of Industrial Pharmaceutical Sciences, Ewha Womans University)
Shin, JinHee (P&K Skin Research Center Co., Ltd.)
Publication Information
Journal of the Society of Cosmetic Scientists of Korea / v.48, no.3, 2022 , pp. 245-254 More about this Journal
Abstract
In this study, we tried to investigate the efficacy of combined light therapy using low-power lasers at 655 nm and LEDs emitting wavelengths at 625 ± 5 nm and 850 ± 10 nm in hair loss and scalp. A total of 33 subjects were enrolled in this clinical trial. Each subject used the LLLT and LED device on the scalp for 10 min on a daily basis for 12 weeks. After 12 weeks of LLLT and LED device use, there were significant improvements in redness, elasticity, and hydration of the scalp. Additionally, hair luster and tensile strength were improved. A remarkable decrease in total shed hairs was observed in all subjects at 4, 8, and 12 weeks without any serious adverse event. Combined light therapy using LLLT and LEDs proved to be an effective treatment for reducing hair loss and improving scalp condition.
Keywords
hair growth; hair treatment; light therapy; low-level laser therapy; light-emitting diodes;
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