Efficacy of a multiple diode laser system for body contouring

Area of Science:

• Medical Aesthetics
• Biotechnology
• Dermatology

Background:

• Low-level laser therapy (LLLT) is explored for cellular effects, but clinical efficacy for fat reduction remains debated.
• Skepticism exists regarding LLLT's effectiveness in non-invasive body contouring.
• This study aimed to assess LLLT's efficacy independent of liposuction.

Purpose of the Study:

• To evaluate the effectiveness of the Erchonia EML Laser (Zerona™ System) for non-invasive fat reduction and body contouring.
• To assess LLLT's efficacy independently, without concurrent liposuction procedures.
• To investigate the combined effects of LLLT and a weight loss supplement (Curva™).

Main Methods:

• A split-body clinical trial involving five subjects with BMI ≤ 29 kg/m².
• Randomized application of LLLT to one side of the body, three times weekly for two weeks.
• Efficacy assessment using circumference measurements, ultrasound, blinded physician photo evaluation, and subject satisfaction questionnaires.

Main Results:

• No statistically significant reduction in circumference measurements or fat layer thickness was observed at 7 days or 1 month post-treatment.
• Blinded dermatologists could not reliably distinguish pre- and post-treatment images (average correct identification 51.1%).
• Subject satisfaction was low, with most reporting results below expectations; the weight loss supplement showed no added benefit.

Conclusions:

• The study suggests insufficient evidence for clinical circumferential reduction using LLLT for body contouring.
• More robust clinical trials are required to demonstrate the efficacy of LLLT as a therapeutic option for fat reduction.
• LLLT cannot currently be recommended as an effective treatment for non-invasive body contouring based on this pilot study.