Laser combs work by separating the hair and running the strands across a red laser light. The light bathes both the strands and the scalp, a combination that seems to promote a thicker head of hair. Laser combs do not actually promote hair growth, but encourage the thickening of existing strands.
Results from the laser comb are typically experienced within 8 to 20 weeks after the first use. Laser comb treatments must be repeated at least three times a week for 15 minutes per session in order to obtain significant results. If use of the laser comb is ceased, it is likely that hair will return to its original condition.
The laser comb is safe and easy to use with no side effects. It may be a good option for those experiencing hair thinning rather than areas of complete balding. The laser comb may be a good solution when paired with hair transplantation because it can help thicken the strands and create the appearance of a fuller head of hair.