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The Use of a Light-Emitting Diode Device for Neck Rejuvenation and Its Safety on Thyroid Glands

 Young In Lee  ;  Eunjung Lee  ;  Kee-Hyun Nam  ;  Dong Yeob Shin  ;  Jihee Kim  ;  Jangmi Suk  ;  Jin Young Kwak  ;  Ju Hee Lee 
 JOURNAL OF CLINICAL MEDICINE, Vol.10(8) : 1774, 2021-04 
Journal Title
Issue Date
LED device ; low-level laser therapy ; rejuvenation ; safety ; thyroid gland
Home-use light-emitting diodes (LEDs) are attracting growing attention regarding their anti-aging effects. Although most previous studies on the use of LED devices as a form of low-level laser therapy reported no significant adverse events, questions regarding the safety of using a light source on secretory tissues have been raised. This study aimed to assess the safety and efficacy of a home-use LED device for neck skin rejuvenation, particularly regarding its effect on thyroid gland morphology and function. Thyroid function tests and ultrasonographic analyses showed no significant changes after 16 weeks of LED use. Evaluation using the Lemperle wrinkle scale and global improvement scales by both investigators and subjects showed significant improvement after 16 weeks of daily application, as well as 8 weeks after discontinuation. Biophysical parameters, such as hydration, elasticity, and density, also showed significant improvements. Hence, the long-term use of the LED device was safe and effective for neck rejuvenation, and showed no significant side effects on the adjacent thyroid and parathyroid glands.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Dermatology (피부과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kwak, Jin Young(곽진영) ORCID logo https://orcid.org/0000-0002-6212-1495
Kim, Jihee(김지희) ORCID logo https://orcid.org/0000-0002-0047-5941
Nam, Kee Hyun(남기현) ORCID logo https://orcid.org/0000-0002-6852-1190
Shin, Dong Yeob(신동엽) ORCID logo https://orcid.org/0000-0003-1048-7978
Lee, Young In(이영인) ORCID logo https://orcid.org/0000-0001-6831-7379
Lee, Ju Hee(이주희) ORCID logo https://orcid.org/0000-0002-1739-5956
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