Forehead wrinkles produced by the reason in addition to age aging, but also may be associated with poor nutrition, bad habits and heredity and other factors, is a combination of factors. 1. Age aging. With age, the skin will become loose as its elasticity decreases and the subcutaneous fat layer shrinks, so it is easy to form wrinkles. 2. Malnutrition. In people who have been malnourished for a long time, the skin becomes loose due to the decrease in the amount of fat under the skin. 3. Bad lifestyle habits. People who have rich facial expression and like to do the action of lifting eyebrows and squeezing eyes are more likely to form some dynamic wrinkles and progress to static wrinkles with the increase of age. 4. Genetic factors. From the genetic point of view, if there are similar people in the family, the chances of wrinkles appearing again will be higher. Also, consider that people with hereditary ptosis or mono-eyelids tend to develop noticeable forehead wrinkles at a young age due to eyebrow lifting to aid in the eye-opening maneuver. Since there are many reasons for the formation of forehead wrinkles, specific improvement measures need to be taken after consultation with a specialist at a regular medical institution.