Why is it more common to have problems with acne during adolescence and what causes acne in adults?
During adolescence there is an increase in the production of testosterone (the male hormone present in both sexes), which makes the sebaceous glands more active. During adulthood it is common to experience the same hormonal imbalance due to stress or menopause. The use of certain types of medicine, inappropriate cosmetics, excessive exposure to sunlight, and eating certain foods can also cause acne in both adolescents and adults.