Research shows this method is best for male and female pattern hair loss. There's less evidence about other conditions, like telogen effluvium and scarring alopecia. Because there're many possible reasons for has many possible causes, the American Academy of Dermatology recommends an accurate diagnosis before treatment. Sudden, patchy, painful, or inflamed loss deserves medical evaluation.
There's an increasingly popular option for people dealing with hair loss. It's low-level laser therapy (LLLT) and uses gentle light through a diode-coated hat you put on your head. Before buying a new device, however, you must understand its intended use and how to apply it properly.