Hilary Duff in Studio City, California on April 11, 2012. Credit: Beverly News

Who knew Hilary Duff had such a baby face underneath all that makeup?

The new mom showed off her flawless, radiant complexion when she went completely makeup-free while leaving a gym in Toluca Lake, Calif. Wednesday.

VOTE: Do these stars look better with or without makeup?

Sporting all-black workout gear and Hunter rain boots, the blonde beauty bundled up in a loose-fitting sweater wrap and made sure to pick up lunch for her and her hubby Mike Comrie.

Take out food is a must since the 24-year-old and Comrie, 31, welcomed their first son, Luca, into the world on March 20. Since then, Duff hasn't wasted any time hitting the gym to get her post-baby body back into shape.

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In addition to Pilates classes and sessions on the elliptical, the star has been getting her sweat on in SoulCycle's intense spinning classes.

"Holy sore body!!! SoulCycle kicked my booty!!!! Ouchieee," she tweeted Wednesday afternoon.