Sydney Sweeney’s Hair Evolution: All Her Best Haircuts, Hairstyles and Hair Colours From 2017 Until Now

After her breakout role as Cassie in Euphoria, 27-year-old Sydney Sweeney has become one of Hollywood’s most in-demand actresses, as well as a Gen Z style icon. She only made her red carpet debut in 2017, but has already experimented with an impressive range of looks—and her hair has played no small part in her transformations.

“I’ve always felt that my hair represents just how I’m feeling and who I am at that time. It’s like an accessory to whatever you want to wear—the personality that you want to have that day. I think that people forget that it’s not just makeup. Your hair can actually transform you too.”¹

Over the past few years, she’s dyed it every shade from platinum to strawberry blonde, but naturally, it’s “a mixture of brunette during the fall with a little bit of a red tint to it.” It’s also volume-challenged—she “grew up always wanting [curly and thick] hair”—so she relies on both heat tools and hair extensions to transform its texture.¹

But for 2024, Sydney is on a “hair health journey.” In January, she became a global ambassador for the luxury haircare brand Kérastase. Then, after admitting that her hair was “fried” from all the dyeing and styling, she chopped it off into a bob... only to emerge with long hair extensions a few months later. 

Keep scrolling to see her latest looks, plus all the haircuts, hairstyles and hair colours that have defined her career so far.

Red Carpet Debut: 2017-2018

At the 2017 Los Angeles Premiere of ‘Bright’

Sydney first stepped onto the red carpet with this loose top knot and long, face-framing tendrils—one of many updos to come.

At the 2018 Season 2 Premiere of ‘The Handmaid’s Tale’

Here, we can see Sydney’s natural hair colour: a light brown that transitioned into blonder ends, which she wore straight with a center part.

At the 2018 Marie Claire Fresh Faces Event

“Bronde” is the word for her hair here—it’s somewhere in between brunette and blonde, with a slightly wavy texture.

At the 2018 Los Angeles Premiere of ‘Sharp Objects’

Her next look captured a Boho aesthetic with a loose, undone updo and a braided detail.

Blonde Ambition: 2018-2020

At the 2018 Audi Emmys Celebration

Later in 2018, she revealed a new light blonde colour and a longer length, which she styled over one shoulder in mermaid waves.

At the 2018 HBO Emmy Awards After-Party