This is a low energy laser that assists in lowering blood viscocity, lowering blood fat and preventing the formation of thrombus. It can assist with conditions like cervical spondylosis, lumbar disc of herniation, frozen shoulder, arthritis and prostatitis, it can also help improve blood circulation. I find it works really well for conditions like rhinitis and allergies and can help alleviate jet lag, and can also increase the production of melatonin .