Laser Safety Considerations
Not all "therapeutic" lasers are "low level" lasers. There are several products in the market that output significantly higher power levels than the Q-Laser products. In general, clinical studies have not shown that higher power levels are any more effective.
In addition, higher power devices typically require special care and safety precautions. In the U.S., lasers are regulated by the FDA's Center for Devices and Radiological Health. The links in the sidebar at the left will give you details of the laser classification system.