Laser hair restoration has come onto the scene in recent years, and reviews are mixed - even from physicians specializing in hair loss. The laser hair loss devices in physicians' offices resemble hood-type hair dryers, while you can buy over-the-counter laser brushes. The lasers used in these devices are "cool" lasers so that they do not burn the skin the way dermatologists' anti-aging lasers do.

The lasers used in laser therapy for hair loss are low level lasers. The use of "cool" laser light in laser hair therapy is debated by physicians, with some dismissing it and others embracing it. The US Food and Drug Administration has approved the use of laser hair products such as the HairMax LaserComb, but whether the FDA approval indicates that the FDA considers the tool effective, or whether it merely considers it safe is not clear. The company that makes HairMax released documents to the FDA, but has chosen not to release those documents to the public.