Advertisement
What works best according to the evidence?
- Daily use of a broad-spectrum sunscreen.
- Cosmetic ingredients such as vitamin C, niacinamide, azelaic acid, retinoids, or exfoliating acids (depending on skin type).
- Dermatological treatments such as chemical peels, lasers, or specific creams prescribed by your doctor.
Look at the stain in the photo
It’s not possible to diagnose a skin lesion from an image. If a spot:
