Prevention Magazine asserts that a pseudo-catalase can be a cure for graying hair. When applied in a topical cream, the sunlight activates the treatment and pigment returns to hair strands. Catalase is the substance responsible for hair color. Reducing stress can also cure gray hair.
In the journal Cell, a Japanese study reveals that stressors such as ionizing radiation and ultraviolet light can cause gray hair. These factors can deplete the melanocytes in the hair, robbing the hair strands of color pigment. Emi Nishimura from Tokyo Medical and Dental Center asserts that individuals are exposed to 100,000 events on a daily basis that can cause stress and damage the DNA, which can result in gray hair.