One of the most important things you can do for your skin during your twenties is good sun protection to prevent discoloration and premature wrinkles. Eighty-five percent of what we think of as aging is actually caused by exposure to the sun. Wear a hat with a brim at least 4 inches wide. Apply your sunscreen at least 20 minutes before going into the sun to give the active ingredients time to soak into your skin. During your 30's, you should see fewer breakouts, but you will begin to see the first signs of aging.
More water is lost which leads to drying and decreases the skin's natural protection barrier.
If you're starting to notice fine lines, wrinkles and discoloration, it's time to take a good look at how you're caring for your skin. After passing the threshold of 30, consider boosting your skin care regimen, upgrading your makeup routine, and paying more attention to the finer details of your face. Looking good in your thirties takes more time and effort than it did at age 25, and requires a systematic program of maintenance. Make sure to keep your skin well hydrated, especially in a dry climate or during winter months when skin is driest. You may need to use a heavier moisturizer in the evenings if your skin still feels dry.