What is intense pulsed light (IPL)?
Intense Pulsed Light (IPL) is a broad-spectrum light therapy that emits multiple wavelengths to target various skin conditions, including pigmentation and inflammation.
Though not commonly used for hair regrowth, some off-label uses involve stimulating the scalp or managing seborrheic dermatitis, which may indirectly support hair health.
IPL is sometimes compared to red light therapy, but RLT uses a more targeted wavelength range and is generally considered safer and more effective for consistent hair stimulation.
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.
LED Therapy
Light & Technology
LED therapy uses light-emitting diodes to deliver low-energy light to the skin or scalp.
Visible light spectrum
Light & Technology
The visible light spectrum is the range of electromagnetic wavelengths that are perceptible to the human eye, typically spanning from about 380 nm to 750 nm.
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.
