Over the weekend, Zac Efron alarmed his fans with his "new appearance" after he was involved in an Earth Day Facebook Watch video...

And now, experts have weighed in on the situation.


And they have revealed what exactly is behind the actor's "new" cheeks and jawline.

Scroll on to find out what's happened...

Now, Zac Efron has been on our screens for over a decade...

via: Getty

And the Californian-born actor first came into our lives in 2006 as the fresh-faced, sparkly-eyed teen, Troy Bolton.

He was the ultimate teenage heartthrob...

And young girls all over the world instantly became obsessed.

And, after his success in High School Musical...

Efron went on to play a number of other roles of a similar nature, including another teen heartthrob, Link Larkin in the remake of the 1988 musical, Hairspray.

However, as he got older...

via: Getty

Zac dropped his younger, more adolescent Disney image, and began taking on more mature roles.

The teenager we once knew and loved was gone...

And there was now a young man stood in his place - destined to become recognized for his great acting.

Although he began appearing in many more R rated movies...

Including crude comedies such as Dirty Grandpa and Bad Neighbours.

And in more recent times...

via: IMDB

The actor ventured into much darker territory with his portrayal of the notorious serial killer, Ted Bundy.

Extremely Wicked, Shockingly Evil and Vile told the story of the demented killer...

via: IMDB

And depicted the journey of Ted and his girlfriend, Liz, as he is captured and accused of his many murders.

Zac did the seemingly impossible and managed to make thousands of women suddenly become attracted to a serial killer... If that isn't a skill, we don't know what is!

And people were going that crazy over the new, and "hot," Ted Bundy...

That Netflix had to step in to gently remind everyone that Ted Bundy was, in fact, a demented serial killer and r*pist and that there were plenty of other "hot" actors to drool over on their streaming service.

But putting aside the "hot serial killer"...


Zac did a superb job taking on such a serious role and he is now recognized as a very talented and diverse actor.

But his most recent TV appearance hasn't sat well with his fans...


And it's all over his "strange" new appearance.

The actor surprised the internet during a Facebook Watch appearance for Bill Nye's Earth Day Musical over the weekend...


And people have been left utterly baffled over what's happened to Zac's face.

As you can see, the internet has been going wild...

And many have been speculating that Zac has undergone plastic surgery or cosmetic enhancements - especially on his cheeks and jawline.

But now, an expert has weighed in on the situation.


Dermatologist Dr. Muneeb Shah told Insider it's hard to say exactly what procedures the actor has had done... if any.

It does appear that his jaw, chin, and lips are more prominent," he explained, "A few things can give this appearance: implants, dermal filler, or even the results of steroid / HGH use. Some people even speculate that he had dental surgery, which I think is much less likely."

Dr. Anthony Young, a plastic surgeon, then suggested that Zac may have gotten his wisdom teeth removed, which can cause swelling of the jaw and cheeks.


"I actually think he's had dental surgery, not plastic surgery and that's why he's swollen in these areas," Young said in a TikTok video.

Muneeb told Insider while it can be fun to speculate, people should be careful before jumping to conclusions about a celebrity's personal life, especially their health.


"Either way, if [Zac] did have work done, it just goes to show that all of us, regardless of how we are perceived by the public, have things that we may want to improve or change."

Here's Zac's new appearance:

Facebook Watch

And at the end of the day, all that matters is if Zac is comfortable with his own appearance... so if he's happy, we're happy!

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