What is low-level laser therapy (LLLT)?
Low-level laser therapy (LLLT) is a treatment that uses low-intensity lasers or LEDs to stimulate cellular activity without heating tissues.
LLLT operates on the principles of Photobiomodulation (PBMT), using red or near-infrared light to promote mitochondrial function, enhance ATP production, and trigger biological repair processes.
For hair growth applications, LLLT devices target the scalp with specific wavelengths like 650 nm to support hair follicle health, stimulate dormant follicles, and extend the anagen phase of the hair growth cycle.
Related terms
Laser Diode
Light & Technology
A laser diode is a semiconductor device that emits light at a specific wavelength.
Red Light Therapy
Light & Technology
Red light therapy is a non-invasive treatment that uses red wavelengths to stimulate cellular repair.
620 nm wavelength
Light & Technology
The 620 nm wavelength refers to a specific wavelength of light linked to DHT inhibition.
Wavelength penetration depth
Light & Technology
Wavelength penetration depth refers to how deeply different light wavelengths can travel into biological tissues.
