For just giving birth a week ago, Hilary Duff sure is looking fantastic! So what's her secret? Maybe taking the time to treat herself to "me time" things like an appointment at the salon!

Hilary Duff in a blue top on her way to a hair appointment

Related article: Hilary Duff & Her Hubby Welcome Their First Child!

Just eight days after giving birth to her son Luca Cruz, the new mommy was out and about in Los Angeles yesterday, getting her hair done, at salon Nine Zero One -- and we have the pictures! Hilary looks fantastic -- she's already sporting a much slimmer post-baby body, and she's glowing and smiley. Looks like motherhood's agreeing with her!

After her hair appointment, she tweeted, "Just got my hair did from my girl @RiawnaCapri thanks love!Im Feelinfresh! Heading back home to hang with munchkin :)" and posted this photo:

Hilary Duff after hair appointmentShe looks stunning! If only we could all look this good just days after having a baby! The salon appointment was Hilary's second outing since having Luca -- the first was dinner with a friend. And that one didn't work out so well! On Tuesday, Hilary tweeted, "OMG my first outing in a week and I hit @AlisiaLeibel in the eye with a shrimp tail! Can't take me anywhere! Lord help me!" But things got better when she got home that evening: "1st outing complete with no tears!" she tweeted. "Made it home early... just in time to feed Luca. Figuring this motherhood thing out! Yay!"

Not only is she "figuring it out," she's totally conquering it!

Do you agree that Hilary Duff looks great one week post-baby?

Photos courtesy of Fame Pictures / Twitter