Many reviews note that HairMax devices do appear to be effective in promoting new growth of thicker, fuller hair when used as directed. Other users noticed that their hair loss slowed or stopped completely while using the laser devices. Users also appreciate how lightweight and portable the devices are.

Treatment with the devices can cause some users to experience shedding during the first few weeks of use, as the laser energy causes the hair follicle to shed damaged hairs and regrow healthy ones. Shedding is actually a positive sign that the HairMax laser device is beginning to work to regrow new, healthy hair.

All Hairmax®models are designed to last up to 10-15 years. The laser strength is approximately 655 nm, and 5 mw per beam.

While it has not been proven that the HairMax treats grey hair, it is a logical hypothesis that the laser energy of HairMax Lasers might stimulate other areas of the hair follicle, such as the melanocytes, which would then begin to produce more melanin and restore the colour of their hair.