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

April 2021 in “ Journal of Clinical Medicine ”

Young In Lee, Eunjung Lee, Kee‐Hyun Nam, Dong Yeob Shin, Jihee Kim, Jangmi Suk, Jin Young Kwak, Ju Hee Lee

light-emitting diode LED device thyroid gland parathyroid gland skin rejuvenation ultrasonographic analysis Lemperle wrinkle scale biophysical parameters skin hydration skin elasticity skin density LED thyroid parathyroid wrinkle scale

Studysummary This study found that long-term use of a home-use LED device for neck skin rejuvenation significantly improved wrinkle appearance and skin biophysical parameters without affecting thyroid function or morphology after 16 weeks of daily use. Our plain-language summary of this paper — not a Tressless recommendation.

The study assessed the safety and efficacy of a home-use LED device for neck rejuvenation in 30 adult women over 16 weeks. It found significant improvements in neck skin appearance, including hydration, elasticity, and density, with these benefits persisting 8 weeks after stopping the device. The Lemperle wrinkle scale and global improvement scales confirmed these enhancements. Importantly, there were no significant changes in thyroid function or morphology, indicating the device's safety for thyroid and parathyroid glands. The study concluded that the LED device was safe and effective for neck rejuvenation without adverse effects on thyroid health.

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In this study, low-level light therapy using a new helmet-type device significantly increased hair density and thickness in patients with androgenetic alopecia, showing no adverse events or side effects, suggesting it may be a safe and effective treatment option for both sexes.

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