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Helmet LED Treatment Grows Hair

Quick Dose Info

Wavelength (nm):
655 nm
Joules (J):


Below is a summary of this article:
Study Summary

Researchers treated balding men and women aged 19 to 65 years old with 655 nm red light therapy (LLLT: low level light therapy).

They fitted helmets with 2.36 mW LED 655 nm output to administer the treatment.

They tested hair growth at 0, 8 and 16 weeks.

At the end of 16 weeks, particpants in the treatment group had more hairs and they were thicker as well.

The control group did not experience an increase in hair quanity or thickness.

There were no adverse side effects.


Wavelength (nm)
655 nm
Joules (J)
Body Target
Condition Treated
Hair Growth
Treatment Points
EMF Type
Red 630-700 nm
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Some data in this summary is from the PBM Database