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
620 nm wavelength
Light & Technology
The 620 nm wavelength refers to a specific wavelength of light linked to DHT inhibition.
Therapeutic window
Light & Technology
The therapeutic window in light therapy refers to the optimal dosage range (wavelength, intensity, and duration) that produces biological benefits without causing harm.
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.
LED Therapy
Light & Technology
LED therapy uses light-emitting diodes to deliver low-energy light to the skin or scalp.
