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.

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.

Despite the laser therapy's active role in hair regrowth, it is important to note that it will not singularly prevent baldness and stop thinning hair. “The LaserComb doesn't stop thinning hair,” Dr. Elena Dimitrova, hair and scalp care specialist at the Belgravia Centre notes.