Non-invasive laser therapy has three basic effects: bio-stimulating, analgesic, and anti-inflammatory. Bio-stimulation involves stimulating collagen, improving tissue blood flow, accelerating the regeneration of blood vessels and lymphatic pathways, and increasing the tensile strength of tissues. The analgesic effect usually appears after the first treatment and is caused by the release of endorphins and serotonin. It further improves blood flow to the tissues and helps absorb swelling. Last but not least, the anti-inflammatory effect reduces inflammatory reactions.