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When it comes to our skin care routines, aren't we all looking for that one special magic potion that will leave our complexions glowing and youthful-looking? Sadly, miracle ingredients don't actually exist. But you can still achieve stellar results with one skin care wonder: retinol. If you're a retinol beginner and aren't sure where to start, a serum is a great way to wade in slowly. But before you do, see what top dermatologists we talked to advise when it comes to all things retinol. Read o