Millie Bobby Brown attended the premiere of her new Netflix film, The Electric State, in LA on Sunday (Feb 24)—and let’s just say, people were shook at how different she looked.
The 21-year-old Stranger Things actress stunned in a gold and silver gown, as she rocked an updo with bangs and strikingly new blonde hair.

But what really sent the internet into a spiral? According to fans, Millie is looking way older, and her new look is sparking rumors of cosmetic procedures that…don’t exactly pass the vibe check.
Why is this girl so obsessed with looking older? https://t.co/eQU41RUJeG
— Siul Oczoro 🎟🎧🎬💿📘 (@SiulOczoro989) February 25, 2025
Has Millie Bobby Brown Had Plastic Surgery?
Fans have been lowkey shocked at how much older Millie Bobby Brown looks—and, of course, the internet has wasted no time in debating whether she’s had any work done.
dude millie bobby brown should minimize her fillers/botox. she looks so old at 21 🫢
— sam (@lwtstolemyheart) February 22, 2025
But seeing as people love to play detective, some experts also chimed in.
According to award-winning cosmetic surgeon Dr. Paul Banwell, who spoke to Mail Online, any procedures Millie might have had were subtle:
“Her cheekbones appear higher, and her lips appear fuller, which could be the result of filler,” he noted.
CHECK OUT:
30 Celebrities Admit to Getting Plastic Surgery
However, Dr. Banwell also pointed out that her transformation could just be a natural part of aging: “As we age, we naturally lose collagen and fat in our face, which leads to a less full, saggier appearance.”

He also reminded us that bone structure and face shape naturally change over time—especially when transitioning from childhood to adulthood. And let’s be real, when Stranger Things introduced us to Millie, she was literally 12! Ofc, she’s going to look different now!
why do people really pissed off about millie growing up???? she’s 21 now she’s an ADULT grown ass woman obviously she’s not going to look the same like the bald headed girl on stranger things 1
— marina (@kittytastecola) February 25, 2025
Still, Dr. Banwell had a word of caution for the actress, warning that too much filler can have the opposite effect and actually speed up the aging process.
“This could cause ‘pillow face’ or a frozen face, which is, I believe, not the true purpose of these sorts of treatments,” he explained.
Is Bad Hair and Makeup to Blame for Millie Bobby Brown’s Mature Look?
This isn’t the first time Millie has found herself under the spotlight for her looks. The chatter has been going on for years, but it hit a peak this month—especially after she debuted her blonde hair. Similar comments popped up after the SAG Awards and other recent public appearances and social media posts, too.
Millie Bobby Brown just turned 21 and she doesn't look a day older than 35 pic.twitter.com/kqOgWcg7UX
— mizge (@mihailo____) February 25, 2025
While some believe Millie’s looks have changed due to cosmetic procedures, others argue that it’s all simply the result of bad styling choices—whether it’s her outfits (maybe her stylist really hates her), the overlined lips (current beauty trend), the bleach-blonde hair (a major switch-up from natural brunette) or just… a mix of all the above.
millie needs to have some serious talk with her makeup and hair stylist cause no way she looks 21 here😭 https://t.co/RufTKvyTc4
— sa (@sserarosie) February 25, 2025
Whoever is doing Millie’s makeup is aging her https://t.co/bgxqkXVSEE
— ? 𖦹𝔩𝔦𝔱𝔱𝔩𝔢 ⚄ 𝔩𝔦𝔟𝔯𝔞⓼ ✮ (@_S0URCANDY) February 25, 2025
fake tan, excessive lip fillers, the yellowest blonde dye job i have ever seen… millie blink twice if you need help https://t.co/jGMrTpFVdM
— lex! (@elextra__) February 26, 2025
Then there’s the theory that Millie is intentionally trying to look more mature to distance herself from her Stranger Things character, Eleven. And honestly… it makes total sense. After playing the same role for almost a decade, she’s probably so over it.
Did she start doing this bc she wanted a brand-reset after Stranger Things? She always looks like she's trying to look 10 yrs older https://t.co/z1IN5eoK1Y
— Lohn Jakeman (@CarlOrkmansen) February 26, 2025
Talking of acting roles, Millie recently expressed her interest in playing Britney Spears in a biopic. Suddenly the makeover makes total sense: it’s giving Britney bitch!

It’s clear Millie’s embracing a new aesthetic—and tbh, she doesn’t look all that bad.
But what do you think? Are you loving the change or missing the old Millie? Let us know in the comments below!
READ NEXT:
20 Fun Facts About Millie Bobby Brown