What is a laser diode?
A laser diode is a semiconductor device that emits light at a specific wavelength, commonly used in low-level laser therapy (LLLT) devices for hair regrowth.
Laser diodes offer precision, durability, and consistent output, making them ideal for wearable or in-office hair restoration tools.
Red light therapy devices equipped with laser diodes typically target the 650–680nm range, stimulating mitochondrial activity and supporting follicle regeneration during the anagen phase.
Related terms
660 nm wavelength
Light & Technology
The 660 nm wavelength refers to a specific red light frequency commonly used in therapeutic devices to stimulate biological processes.
Cold Laser Therapy
Light & Technology
Cold laser therapy, also known as low-level laser therapy (LLLT), is a non-invasive treatment that uses specific wavelengths of light to stimulate hair follicles and improve growth.
Wavelength penetration depth
Light & Technology
Wavelength penetration depth refers to how deeply different light wavelengths can travel into biological tissues.
Melanin
Light & Technology
Melanin is the pigment responsible for hair, skin, and eye color.
