Safety and Efficacy of a Non-Invasive 1060 nm Diode Laser for Fat Reduction of the Abdomen

Changes in temperature are known to produce apoptosis in adipocytes. This study examines the use of a non-invasive treatment that applies 1060 nm laser energy transcutaneously to hyperthermically induce disruption of fat cells in the abdomen.

Thirty-five subjects received application of 1060 nm laser on the abdomen for fat reduction. Ultrasound images and high-resolution two-dimensional photography were recorded at baseline, 6 weeks, and 12 weeks post treatment. Subjects maintained a stable diet and exercise routine throughout the course of the study. Weight was recorded at baseline and each follow-up visit. Three board certified dermatologists were trained as blinded evaluators and tasked with identifying before and after photographs from randomized, paired baseline, and 12-week photographs. Ultrasound images were used to measure the fat thickness change from baseline at 6 and 12 weeks. Level of patient satisfaction was graded at 12 weeks using a 6 point Likert scale.

23% of subjects were Fitzpatrick IV-VI. Blinded evaluators correctly identified the post-treatment photograph 95% of the time (88%, 97%, and 100%). Mean reduction in fat layer thickness from baseline was statistically significant (P less than 0.001) at both 6 weeks (1.5 +/-1.23 mm) and 12 weeks (2.65 +/-1.41 mm). Mean weight change was +0.1 lb. Side effects were mild to moderate including edema, tenderness, and induration mostly resolving within 1-3 weeks post treatment. No serious adverse events were reported.

1060 nm based laser treatment can consistently reduce the fat contour in the abdomen with an excellent safety profile in all skin types. The study met all three of its prospectively defined endpoints of success.

J Drugs Dermatol. 2018;17(1):106-112.

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