Alopecia is not a problem today, many men in different eras have struggled with this unpleasant phenomenon, but only now there is a chance to get rid of it completely. The revolutionary method of scientists from America opens up such a perspective for those who need it. The peculiarity of this method is the use of a 3D printer and forms printed on it.Although hair transplantation has developed quite successfully in recent decades, its essence was to redistribute the hair follicles that a person has, but scientists have recently started growing these cells in the laboratory. The revolutionary method of American scientists opens up access to the creation of hair follicles using forms printed on a 3D printer. For the first time, human follicle cells were fully grown under laboratory conditions. The essence of the breakthrough made by the specialists of Columbia University is to combine several innovations in one method. Firstly, with the help of three-dimensional printing, they created special plastic forms, the contents of which resemble a natural environment that provides nutrition for hair growth through microscopic holes. Moreover, such miniature forms were made for the first time. The second innovation is the development of a mixture of new growth factors. After growing around the skin form, donor hair cells are placed inside it. JAK-STAT molecules, which are introduced into the mixture to start the development of follicles and arousal of metabolism, should provide an engraftment and give an incentive to the beginning of growth. Angela Cristiano, the project manager, outlined the essence of the discovery of the method in what she called the process of creating correctly arranged and modified hair arrays for transplanting patients with a kind of “hair farm.” Before the method is widely used in clinical practice, scientists have yet to conduct a series of tests and additional studies, but predictions for The practical application of the method is already optimistic.