There is no particularly effective way to change hereditary gray hair into black hair, and the main way to improve it is through the use of topical coloring agents, which cause discomfort and are immediately discontinued. Hereditary gray hair is also known as premature gray hair caused by genetic abnormalities, due to the inability to change the genetic predisposition in terms of treatment, so there is no particularly effective way to treat hereditary gray hair, the main way is to color the hair. When choosing hair dyes, people with hereditary gray hair must pay attention to choosing products from regular manufacturers to avoid unqualified products that may cause local skin irritation or even allergic reactions. People with hereditary gray hair can take more food rich in melanin, such as black beans, black sesame, black fungus and so on. Hereditary gray hair, in addition to affecting the aesthetic appearance, does not affect the body, and generally do not need to carry out too much treatment, if you want to treat the need to follow the doctor’s instructions.