Millie Bobby Brown is over people commenting on her new look.

In a post on her Instagram Stories on Thursday, Feb. 27, the actress responded to recent chatter that her new blonde hair has made her look significantly older than her 21 years. 

Sharing a screenshot of a British Vogue article with the headline, “No One Cares How Old You Think Millie Bobby Brown Looks,” the Stranger Things star wrote beneath, “thank you.”

Brown’s response comes after the Internet was flooded with comments about her appearance at the Los Angeles premiere of her new Netflix film The Electric State on Feb. 24. 

 
British actress Millie Bobby Brown arrives for the world premiere of Netflix's "The Electric State" at The Egyptian Theatre in Los Angeles on February 24, 2025.
Millie Bobby Brown at the Los Angeles premiere of 'The Electric State' on Feb. 24, 2025. 

LISA O'CONNOR/AFP via Getty

Photos from the evening shared by the Enola Holmes star on Instagram garnered responses including, “Why this makeup and this blonde hair? You're so cute in your natural version! In the actual pic you're a 40 year old woman,” and “She looks 45 pretending to be 22,” in the comments section. 

For the premiere, Brown, who celebrated turning 21 on Feb. 19, sported an Annie's Ibiza metallic embroidered gown featuring a corset bodice and dramatic mermaid train, while her blonde locks were pulled up into a bun with her bangs at the forefront.

She was joined by her husband, Jake Bongiovi, who looked smart in a black and white tuxedo and bow tie.

Millie Bobby Brown Responds to Critics Who Think She Looks Older with New Hairstyle
Millie Bobby Brown's Instagram Stories post. 

Millie Bobby Brown/Instagram; JB Lacroix/FilmMagic

Brown revealed her new platinum blonde ‘do at the start of the month, before giving her locks their red carpet debut at Sunday’s 2025 SAG Awards. 

The star wore her hair in a sleek braided bun with a single face-framing strand and accessorized her strappy peach Louis Vuitton gown with Chopard jewels. 

Brown ditched her brunette tresses at the start of the month and revealed the dramatic transformation in a Feb. 1 Instagram post. 

The carousel of photos showed off her recently dyed locks, with Brown rocking an ankle-length black dress for the snaps. 

In one shot, the actress added a Y2K-style edit to the image, including the word "HOT" in pink lettering, as well as a "System error !" message.

Fans were also quick to comment on her new look making her appearing older, with one writing in the comments section, “I can't believe she's only 20, she looks 35!”