OK, you're pushing 30 . . . don't panic! Even if you were a complete antiaging recluse in your 20s, there is still time to enter the next decade with endless grace and fewer wrinkles. And who better to steal skin care secrets from than the actresses who remain looking forever young? These Hollywood starlets may be in their 30s, but there's nary a dark spot in sight. Their beauty favorites range from drugstore classics to cult luxury elixirs and even a DIY recipe. With this shopping list under your belt, you can celebrate your 30s without a worry line in sight.