level laser devices: How they work?

Low level laser therapy (LLLT)  is a new hair regrowth treatment which involve the use of medical grade lasers to stimulate the hair follicles and promote thicker and healthier hair. 

There are many companies who manufactured these devices. Some of the well known brands are capillus laser cap, hairmax laserband, iRestore helmet, Theradome helmet and many other such products.

These devices claim to reverse both male and female pattern hereditary hair loss. Some of the products also offers money back guarantee but the price of these devices are generally high and beyond the reach of a common person. 

If you look at the Capillus Price, you will see that the company has different prices for different caps depending on the number of lasers used. The cost of capillus varies from 800$-3000$.