Retinoic acid is widely used in dermatology, particularly in the treatment of acne and other skin disorders. It works by promoting skin cell turnover and preventing the clogging of hair follicles, which helps reduce the formation of blackheads and whiteheads. It is also effective in treating psoriasis and improving the appearance of sun-damaged skin by reducing fine lines, wrinkles, and uneven pigmentation. In addition to its topical applications, retinoic acid plays a role in regulating cell growth and differentiation, making it valuable in cancer research and treatment. It is used in the management of acute promyelocytic leukemia (APL), where it induces the differentiation of abnormal white blood cells into mature forms, helping restore normal blood cell production. Retinoic acid is also used in cosmetic formulations aimed at anti-aging and skin rejuvenation due to its ability to stimulate collagen production and improve skin texture and tone.