What is LLLT?

LLLT (Low Level Laser Therapy) is the application of red and near infra-red light over injuries or lesions to improve wound / soft tissue healing and give relief for both acute and chronic pain. First developed in 1967, it is now commonly referred to as LLLT.

LLLT is used to: increase the speed, quality and tensile strength of tissue repair; give pain relief; resolve inflammation; improve function of damaged neurological tissue and often used as an alternative to needles for acupuncture.

The red and near infrared light (600nm-1000nm) commonly used in LLLT can be produced by laser or high intensity LED. The intensity of LLLT lasers and LED's is not high like a surgical laser. There is no heating effect.

The effects of LLLT are photochemical (like photosynthesis in plants). Red and near infrared light can affect cell membrane permeability and aid the production of ATP thereby providing the cell with more energy which in turn means the cell is in optimum condition to play its part in a natural healing process.

LLLT devices are typically delivering 10mW - 500mW (0.2 -> 0.01 Watts). The power density typically ranges from 0.05W/Cm2 -> 5 W/Cm2.

LLLT is popularly used for soft tissue injuries, joint conditions, chronic pain, non-healing wounds and ulcers, post-op pain and acupuncture. 

Introduction to LLLT Video

Introduction to LLLT and dose response by Prof. Michael Hamblin, Wellman Centre for Photomedicine, Harvard Medical School
Source: International Dose Response Society

How LLLT works

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