Low Level Laser Therapy and Light Emitting Diodes in Treatment of Hair Loss
While most people have heard about laser assisted hair removal, the low level laser (LLL) stimulates hair follicles and the LLL therapy is used in hair loss treatment. Light Emitting Diodes (LED) are also used for the hair loss treatment, however, there almost no studies to conclude whether it's an effective modality.
Laser is a focused coherent light, the depth of penetration of which depends on the wavelength. Most studies investigating effects of LLLT on the hair growth have used wavelengths that range from 635 to 650 nm (Avci, 2014).
Light Emitting Diodes emit non-coherent light that is much milder in its effects than laser is.
Both have been used in treatment of hair loss.
What LLLT and LED are
LLLT Effectiveness in Hair Loss Treatment
How the Procedure is Performed
LLLT/LED Summary. Pros and Cons