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LED Therapy
Understanding Light Therapy: Lasers vs. LEDs
Light-based therapy has become an increasingly powerful tool in both clinical settings and performance recovery, offering non-invasive support for pain relief, inflammation, nerve repair, and tissue healing. These benefits stem from how light interacts with the body at a cellular level—a process known as photobiomodulation (PBM).
PBM is a biological response to light energy—specifically in the red and near-infrared spectrum. It activates internal photo-receptors called chromophores, which in turn trigger beneficial cellular processes: reducing inflammation, improving blood flow, modulating the immune system, and accelerating repair in soft tissue and nerves.
Key Light Sources: LED and Laser—What’s the Difference?
While both LEDs and lasers use diode technology and can emit therapeutic wavelengths, they differ significantly in how they deliver that energy:
🔴 LED (Light Emitting Diode) Therapy
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Emits light in a band of wavelengths, typically around 20nm wide
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Produces non-coherent, non-collimated light, which spreads out and is less concentrated
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Delivers lower energy output, making it effective for surface-level or shallow tissue treatment
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Ideal for broad coverage, making it useful in wrap-style formats for hands, feet, and joints
🔦 Laser Therapy
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Emits a single, focused wavelength (monochromatic)
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Produces coherent, collimated light, meaning the beam stays organized and travels in a tight path
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Capable of much higher power output, ideal for reaching deeper tissues and treating chronic or stubborn conditions
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Provides precision targeting, making it valuable in professional clinical use
Wavelength & Power Matter
While red and infrared light are commonly used in both LED and laser devices, it’s not just about the wavelength. Power output determines how much energy actually reaches the target tissue. Light energy naturally disperses as it travels through layers of skin, fat, and muscle. A higher-powered device can push light deeper, maintaining its therapeutic effect through tissue depth.
In contrast, lower-powered LED devices may lose effectiveness beyond the superficial layers. However, for wound healing, acute inflammation, and general pain relief, LED systems—especially those with a high density of infrared diodes—can still produce excellent results.
Can You Use Both? Yes—and You Should
While lasers are preferred for deep tissue targeting, LEDs shine (literally) in surface coverage and ease of use. A high-quality LED wrap, loaded with dense diode arrays (especially infrared ones), can complement a laser therapy session by covering larger areas, conforming to joints, or providing supportive care in between laser sessions.
Note: Infrared LEDs may appear inactive to the eye, but they’re working. Use a phone camera to spot them—they’ll show up as faint purple lights.
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