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Tretinoin is a topical medication derived from vitamin A that is commonly used for various skin conditions. It is a type of retinoid that works by speeding up the skin's cell turnover process, promoting the shedding of dead skin cells and the growth of new ones. This helps to unclog pores, reduce acne breakouts, and improve the overall texture and appearance of the skin. Tretinoin is also known for its ability to stimulate collagen production, which can help to reduce the appearance of wrinkles, fine lines, and other signs of aging. It is often prescribed by dermatologists and is available in different strengths and formulations to address specific skin concerns.