Efficacy of home-use light-emitting diode device at 637 and 854-nm for facial rejuvenation: A split-face pilot study

Development of Home Beauty Devices for Facial Rejuvenation: Establishment of Efficacy Evaluation System

Background

Home beauty devices for facial rejuvenation utilizing technologies such as radiofrequency, microcurrent, and light emitting diode have gained widespread attention due to their claimed ability to improve skin tightness and elasticity, making them popular among consumers. However, there is controversy within the industry regarding the effectiveness and safety of these devices.

Objective

This study aims to verify the safety and effectiveness of these home beauty devices in treating skin aging based on relevant efficacy evaluation indicators.

Methods

A systematic search of PubMed and web of science was conducted to include original research literature on the efficacy of home beauty devices for facial rejuvenation over the past two decades. The selected literature was processed and analyzed based on efficacy evaluation indicators such as sample size, follow-up period, experimental results, adverse reactions, and others.

Results

After screening, a total of 18 clinical studies were included. A comprehensive analysis of the experimental results and adverse reaction indicators from existing literature revealed that home beauty devices for facial rejuvenation can improve skin aging to a certain extent. Apart from transient redness and swelling, no other adverse reactions were observed.

Conclusion

Despite the variety of home beauty devices for facial rejuvenation available in the market, corresponding research reports are limited. Existing studies suffer from issues such as small sample sizes and short follow-up periods, highlighting the need for a more comprehensive efficacy evaluation system. Furthermore, the physical stimulation of meridian acupoints by home beauty devices for facial rejuvenation may meet the multi-dimensional anti-aging needs of patients, suggesting a potential direction for future research.

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

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.