Uses: This medication is used to treat acne. It may decrease the number and severity of acne pimples and promote quick healing of pimples that do develop. Tretinoin belongs to a class of medications called retinoids. It works by affecting the growth of skin cells. This medication is used to improve the appearance of the skin by reducing fine lines and wrinkles, reducing roughness, and improving skin color. It should be used with a skin care and sunlight-avoidance program that includes moisturizer and daily use of an effective sunscreen (minimum SPF 15).Tretinoin belongs to a class of medications called retinoids. It works by affecting the growth of skin cells. Tretinoin does not repair sun-damaged skin or reverse aging due to sun exposure.