Ah, the flirty 30s. Check out some of our favorite stars who we can be sure didn't have a mental freak-out on their last day of being 29 -- thanks to their gorgeous skin, they are looking radiant as ever! Peruse the gallery HERE, and bask in the glow of these gorgeous ladies!

Learn more about SeroVital—the anti-aging skin product sometimes called "the fountain of youth"—here. And get more info from Shape.com about the ways you can look younger (fast!) here.