There are studies showing that lasers with red light therapy can reduce body fat. This fact makes it possible to fear facial fat loss if using red light lasers in that area. On the other hand, when it comes to LED red light, the light is emitted in a broader range of wavelengths and the output is much lower than with lasers. So it should probably be safe to use even though I advise never to overdo any red light treatment. And again, always think less is more.