Acne and blackheads can be caused by various external or internal factors.
- Hormonal changes.
- Use of cosmetics based on comedogenic oils and their derivatives.
- Stress.
- Long-term use of steroid medication.
During puberty, skin rashes occur due to the production of androgens (testosterone, androstenedione, dehydroepiandrosterone), which activate the sebaceous glands. Acne in women can occur as a result of hormonal changes during the menstrual cycle. The frequent use of products with a high content of comedogenic ingredients contributes to the clogging of pores and the formation of comedones. Acne on the face can also be caused by the release of cortisol during a stressful period. Systematic use of steroids increases the susceptibility of the sebaceous glands to bacterial infections.