What should I do about dark facial skin?

When facial skin appears darker, you can try the following methods to improve it: 1. Always apply sunscreen before going outdoors and avoid prolonged direct exposure to ultraviolet (UV) rays, as UV radiation is a primary cause of skin darkening. 2. Choose skincare products containing brightening ingredients such as vitamin C and arbutin, and use them regularly to fade melanin and brighten skin tone. 3. Exfoliate regularly to remove dead skin cells from the surface, helping the skin appear brighter and smoother. 4. Increase intake of foods rich in vitamin C and antioxidants, such as citrus fruits and leafy green vegetables, which help inhibit melanin production. 5. Maintain a healthy sleep schedule and ensure sufficient rest, as this helps regulate endocrine function and improve skin complexion.