A huge amount of research data has been collected on the effects of laser therapy both in laboratory and clinical settings. The most significant results include:
- Wound healing is significantly improved by Low Level Laser Therapy (LLLT), even in non-healing wounds, thought to be due to the increased level of collagen brought about by laser treatment. Collagen, the chief constituent of connective tissue, is recognized as the most important ingredient in wound healing.
- Increases in blood flow by means of capillary and arterial widening of the lumen of blood vessels, vasodilatation.
- Marked improvement in re-establishment of the lymphatic system after trauma, resulting in reduction of swelling. This is due to the evacuation of dirty proteins by the regenerated lymphatic vessels.
- Laser light stimulates release of the body's own pain killing chemicals such as endorphins and enkephalins, facilitating natural, long lasting pain relief.