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KMID : 0604520220480030245
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Journal of the Society of Cosmetic Scientists of Korea
2022 Volume.48 No. 3 p.245 ~ p.254
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The Effects of Combined Phototherapy (Low-level Laser and Light-emitting Diode) on Hair Loss and Scalp Conditions
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Jeon So-Ha
Lee Jeong-Ok
Jo Hae
Kang Yun-kyeong
Lee Jee-Sun
Lee Hae-Kwang
Lim Kyung-Min
Shin Jin-Hee
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Abstract
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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.
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KEYWORD
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hair growth, hair treatment, light therapy, low-level laser therapy, light-emitting diodes
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