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
Chromophore
Light & Technology
A chromophore is a molecule or molecular structure that absorbs specific wavelengths of light.
Nanoparticles
Light & Technology
Nanoparticles are ultra-small particles used to improve delivery of active ingredients.
LED Therapy
Light & Technology
LED therapy uses light-emitting diodes to deliver low-energy light to the skin or scalp.
Photoreceptors
Light & Technology
Photoreceptors are specialized molecules or proteins that detect and respond to light energy.
