Is that you, Sean Hayes? Fans can't help but notice a drastic change in the Will & Grace star's facial appearance — and plastic surgery experts exclusively revealed to Life & Style what kind of work he could have had done.

"It appears Sean has had a little work done to keep himself looking refreshed. Sean has smoothed lines across his forehead with a dusting of Botox, however, it doesn't look overdone because when he smiles he still has some movement around his eyes," said Jennifer Leebow ARNP, the National Education Director and Master Injector for LABB Aesthetic Beauty Bar.

"The top of Sean’s face appears fuller and not as sunken in as in the before photo. He may have achieved this look by using Sculptra, an injectable poly-L-lactic acid which attracts water and stimulates collagen production and increases over time giving a more natural result. Since Sean still has his natural facial expressions and continues to produce fine lines as in the before photo, he is working on progressive results and not over-injecting for instant gratification. The most natural results take time."

sean hayes 2013-2017 getty images

Sean in 2013 (left) vs. Sean in 2017 (right).

Gary Goldenberg, MD, added, "His skin is actually better than it was in the prior picture. This may be accomplished with laser resurfacing or micro needling with PRP or stem cells. He's also likely had Botox because he doesn't have any visible wrinkles or lines. It appears that he's also had fillers in his cheeks, producing a much more uplifted appearance."

Sean revived his Will & Grace character, Jack, for the NBC reboot — and recently opened up about what it's like to film with Debra Messing and company again. “I’m excited, personally, to be around my friends and be laughing every day,” he recently told Out. “But I’m also excited about giving the fans what they seem to want which is really, really great stories that dig even deeper into these characters’ lives.”

“The show has always been a wonderful mirror to society, so it is the same as it was,” he continued. “It always explored storylines that had to do with society in the current state it was in and it still does that. It still comments on pop culture, politics, sex, religion, anything that’s under the umbrella of relevancy.”

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