Hair loss is an unpleasant disorder that leads to a significant cosmetic defect — baldness. This can be due to many factors, among which diseases and impaired blood supply to the scalp, constant psycho-emotional stress, poor ecology, malnutrition, and bad habits. To date, there are several methods of treatment for this disease. One of the most effective is red light therapy caps. Red light therapy is a treatment that has been used for a variety of purposes over the years. Recently, it has gained popularity as a means to stimulate hair growth. But does red light therapy really work? And…