Used primarily in dermatology, this compound is effective in treating acne and psoriasis. It works by normalizing skin cell turnover and reducing inflammation. In acne treatment, it helps unclog pores and prevent the formation of new comedones. For psoriasis, it slows down the rapid growth of skin cells that leads to scaling and plaque formation. It is commonly applied topically in the form of creams or gels. Due to its effect on cell differentiation, it is also sometimes used off-label for photoaging and other keratinization disorders. Regular use can improve skin texture, reduce hyperpigmentation, and diminish fine lines. It is often recommended for nighttime use since it can increase photosensitivity.