Researchers have found that the astressin-B peptide, which was being investigated for its effects on gastrointestinal function, induces hair growth by blocking a stress-related hormone associated with hair loss. The peptide was responsible for remarkable hair growth in bald mice, with just one shot per day for five consecutive days maintaining the effects for up to four months. The treatment of human hair loss could be achieved through the modulation of stress hormone receptors, particularly hair loss related to chronic stress and aging. The study suggests that astressin-B could be a cure for baldness.