Lindsay Lohan attempts "Blue Steel." Photo: WENN

Lindsay Lohan has aged.

Recent photos of a haggard-looking Lohan with bleached-out hair, too-heavy makeup, forehead wrinkles, and inflated, look-at-me lips give the 23-year-old star the look of someone much, much older.

Someone like, say, Pamela Anderson or Donatella Versace. The comparisons are rolling in, and they're not pretty.

So, what's with the hard, plastic look? Has Lohan had a little work done? Dr. Andrew Jacono, a NYC plastic surgeon, told us that "Lindsay Lohan's upper lip has likely been filled."

Lucky for LiLo, popular hyaluronic fillers like Restylane and Juvederm are only temporary, and should start to absorb back into the body's own supply in about six months.

Just ask Britney Spears or Jessica Simpson, both of whom have dabbled.

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Celebrity Plastic Surgery
Natural or not? Check out the famous faces that we suspect may have had a little work done. By Marissa Gold
X17online

Celebrity Plastic Surgery

    Did she or didn't she? That's the question we ask ourselves when celebs suddenly show up with inflated lips, sculpted cheeks, wrinkle-free foreheads, or noticeably smaller noses.

    Check out these famous faces that we suspect may have had a little work done. By Marissa Gold

    X17online

    Brittany Murphy
    "Brittany Murphy's upper lip looked thin, and now appears larger and more balanced with her lower lip," says Dr. Andrew Jacono, a NYC Facial Plastic Surgeon. "It appears she has had lip filler injections."

    Jim Smeal, WireImage | Gustavo Caballero, WireImage

    Elizabeth Hurley
    Could that famous pout be fake? "Liz Hurley's lips have become flatter," notes Dr. Jacono, who believes she may have had a filler like Juvederm. "It looks natural and well done."

    Terry Smith, Time & Life Pictures/Getty Image | Scott Gries, Getty Images

    Heidi Montag
    "Heidi Montag's lips look like they have been augmented...her teeth also show less than they did before," says Jacono. "She also appears to have had a rhinoplasty. The tip of her nose is smaller and more refined, and her bridge looks reduced."

    Amy Graves, WireImage | Jeffrey Mayer, WireImage

    Jernnifer Garner
    Garner has always had luscious lips, but we couldn't help but notice that they've only gotten fuller with age. "Jennifer Garner's lips look beautiful and likely have been augmented," Jacono says.

    Chris Weeks, Getty Images | Jeffrey Mayer, WireImage

    Kim Delaney
    Looks like an unfortunately case of trout pout. According to Dr. Jacono, "Kim Delaney appears to have the look that's common when lips are overly filled with a hyaluronic acid filler. The upper lip is proportionately too large and both are a little over-projected for her face."

    Gregg DeGuire, WireImage | AP

    Lindsay Lohan
    We love our Lohan au naturel, but Lindsay seems to love messing with her natural beauty. First it was her hair color, and now her pretty pout: "Lindsay Lohan's upper lip has likely been filled," says Jacono.

    Steve Granitz, WireImage | X17online