A wide reaching study conducted in 2014 by the several leading scientists at US Medical Centres has determined that low-level laser therapy is effective in the treatment of pattern hair loss in both men and women. The study featured a wide range of participants using the HairMax Lasercomb and found a significant overall increase in the thickness, fullness and overall density of hair among those who received the treatment. As with most scientific studies, this research featured on group using the desired treatment, while the other group was given a placebo treatment. The research reinforces why the use of low-level laser therapy is a safe and important part of any hair-loss regiment.
The study featured a total of 146 male and 188 female participants with a history of pattern hair loss. Each participant was given either a lasercomb or sham device (placebo) in a concealed sealed packet, and were treated on their whole scalp 3 times a week for a total of 26 weeks. Hair density of the target area was evaluated at the start and then at the 16 and 26 week mark. Those conducting the study and those participating were both kept blind as to the type of device that each participant was given. The person evaluating the masked digital photographs of the treatment area was also kept blind as to which device each participant had been given.
At the end of the study a total of 122 female and 103 male subjects completed the trail. The lasercomb-treat subject showed a much higher increase in terminal hair density when compared to those subjects who were treated with the sham devices. The results were similar for both men and women involved in the experiment. The overall analysis showed that the difference at 26 weeks for those who used the lasercomb and those who used a sham device to be a statistically significant improvement. In the Trial Group # 1, 41 of 43 (95%) of the 9-beam lasercomb-treated female subjects had hair density improvements of over 5 hairs/cm2 at 26 weeks, while only 7 of the 22 (32%) of the sham-treated female subjects did. In addition to this, none of the 43 lasercomb-treated subjects showed a decrease in hair density as opposed to 11 out of 22 (50%) of the sham-treated subjects. The increase in terminal hair density was found to be independent of the age and sex of the participants who used the lasercomb.
Research observed that there was a statistically significant difference in the overall increase in hair density between those who use the lasercomb, and those who were given the sham (placebo) device. During the course of the study, no serious adverse events were reported. The results suggest that using a low-level laser treatment could be an effective way to treat hair loss in both men and women. A lasercomb can help to regrow hair, while also preventing the loss of existing hair.
Jimenez, J. J., Wikramanayake, T. C., Bergfeld, W., Hordinsky, M., Hickman, J. G., Hamblin, M. R., & Schachner, L. A. (2014). Efficacy and safety of a low-level laser device in the treatment of male and female pattern hair loss: a multicenter, randomized, sham device-controlled, double-blind study. American journal of clinical dermatology, 15(2), 115-127.