I was totally ready to say this is a complete and utter sham, however I have found two papers that seem to indicate that there is some positive effect from using the Hairmax device.
A Rutgers team (sponsored by Lexington International) concludes (PDF):
This randomized, doubleblind, sham device-controlled, multicentre efficacy
trial indicates that the HairMax LaserComb
phototherapy device with its patented hair-parting
teeth mechanism is an effective, well tolerated treatment for hair loss of androgenetic aetiology. Indeed,
the HairMax LaserComb
is currently the only laser
therapy device that has been clinically studied and
proven to grow hair in males with certain classes of
Please note that this is for a specific type of baldness (AGA - Androgenetic Alopecia). Don't know what that means exactly.
And since I didn't want to make just one paper the answer, here is a paper from Harvard that says essentially the same thing (PDF):
In four randomized, double-blind, sham-controlled trials of
MPHL and FPHL, we detected a statistically significant
increase in terminal hair density after 26 weeks of lasercomb treatment compared with sham treatment. Such
improvement was independent of the sex and age of the
subject, and independent of the lasercomb model when
similar laser dose rates were delivered. A higher percentage
of lasercomb-treated subjects reported overall
Lasercomb Treatment of Male and Female Pattern Hair Loss 125
improvement of hair loss condition and thickness and
fullness of hair in self-assessment, though the results did
not always reach statistical significance. Increase in terminal hair count was comparable to the short-term trials of
5 % minoxidil topical solution and 1 mg/day finasteride,
but less efficacious than longer term (C1 year) trials.
In this one, there is some cautionary language (added emphasis from me in the quote).
Note that the Hairmax page uses some language that I would say is more marketing speak than scientific language, the basic claim of improving hair growth seems to bear out in testing.
PubMed also has a page where they quote the above Harvard paper.
There is another paper that appears to come from a Laser in Medicine journal:
LLLT for hair growth in both men and
women appears to be both safe and effective. The optimum
wavelength, coherence and dosimetric parameters remain
to be determined.
Google Scholar lists a bunch of other papers and articles: https://www.google.com/?gws_rd=ssl#safe=strict&q=scholar:+hairmax
I guess you learn something every day and have your preconceived notions challenged.