From Malibu pink to oceanic iridescence, the girlhood aesthetic got a salty splash—welcome to the era of Mermaidcore. Not too long ago, the world was drenched in hot pink. Barbiecore was everywhere—runways, red carpets, Instagram filters, and TikTok transitions. With Barbie (2023) catapulting Margot Robbie into full-blown cultural icon status and the fashion world indulging in plastic-fantastic maximalism, we all collectively dipped into the Dreamhouse. It was pink, playful, hyper-feminine—and proud of it.

But then something shimmered beneath the surface.

The Shift from Dollhouse to Deep Sea

As the glitter settled, the style zeitgeist began shifting. 2024 saw the rise of oceanic textures, holographic finishes, and a cooler, more mysterious palette. Suddenly, bubble hems, pearl accents, and flowing silhouettes started to feel more exciting than bubblegum hues and tailored corsets. Enter: Mermaidcore.

Where Barbiecore celebrated the visible—bold, cheeky, and saccharine—Mermaidcore invited us to dive deeper, quite literally. It wasn’t just a swap of palette; it was a mood shift. Think: from “Life in Plastic” to “Call me Siren.”

In the fashion universe, this pivot didn’t come out of nowhere. It was a natural evolution—Barbiecore cracked open the door to hyper-feminine expression, and Mermaidcore swam through with softer edges, iridescent rebellion, and an emotional undertow.

Barbiecore Walked So Mermaidcore Could Swim

There’s something poetically cyclical about this transformation. Barbie always had her mermaid moments (remember Barbie in A Mermaid Tale?), but in 2025, the fashion reinterpretation leans more sultry siren than Saturday morning cartoon.

The Barbiecore aesthetic gave us permission to lean into femme power—loud, proud, and fabulous. Mermaidcore, on the other hand, whispers instead of screams. It’s about flow, fluidity, and fantasy. Think pastel mesh dresses gliding like waves, seashell accessories that feel heirloom rather than Halloween, and wet-look makeup that glistens under strobe lights and sunrise selfies alike.

Designers like Di Petsa and Marine Serre were already playing with aquatic silhouettes pre-2025, but this year, it became mainstream. Loewe’s Spring/Summer 2025 collection felt like an underwater dream, while indie brands like Selkie and Mirror Palais leaned hard into sea nymph realness—billowing chiffons, scale-like sequins, and ocean-spun pastels.

TikTok, Trauma, and the Lure of Escapism

Gen Z’s digital playgrounds had a part in this too. On TikTok, the hashtag #Mermaidcore has over 2 billion views and counting. But what’s fascinating is the tone shift. While Barbiecore often came with high-energy nostalgia and empowerment edits, Mermaidcore content often leans toward introspection and fantasy—like a Lana Del Rey track with fins.

After years of social and political upheaval, many fashion lovers are turning away from harsh lines and loud trends in favor of escapism—something dreamy, something otherworldly. Mermaidcore delivers that, offering a glittering, waterlogged escape from reality.

Some style influencers call it the post-Barbie burnout aesthetic—when maximalist joy feels too loud, and you crave something soothing but still stunning.

Mermaidcore in the Wild

You’ve probably already seen Mermaidcore without even realizing it. Those slinky iridescent slip dresses at Coachella? Mermaidcore. The holographic nails with pearl appliqués? Mermaidcore. Your friend wearing that seafoam green gown to a rooftop party? Yep—full siren.

Even celebrities are diving in:

• Zendaya donned a custom mermaid-inspired gown at the Dune 2 premiere, complete with seashell detailing and soft, flowing hair.

• Dua Lipa’s Radical Optimism era is soaked in Mermaidcore energy—from album art to tour outfits.

• Doja Cat? She’s the queen of both Barbiecore and Mermaidcore—depending on the tide.

The Future Is Fluid

So where does this leave us? Is Mermaidcore here to stay?

Fashion is always fluid (pun intended), but Mermaidcore has staying power because it taps into something deeper. While Barbiecore was about reclaiming femininity in its loudest form, Mermaidcore is about embracing mystique, softness, and allure without sacrificing strength.

It’s not just an aesthetic; it’s a feeling. You can dress like a sea witch, a beach bride, or a soft siren and still be participating in the same trend. There’s space for moody blues, radiant silvers, and shimmering lavenders. Mermaidcore allows for interpretation—and that’s what keeps it fresh.

In the end, Barbiecore and Mermaidcore aren’t opposites—they’re sisters. One basks in the sun, the other swims in the moonlight. And if 2025 has taught us anything, it’s that the most powerful style statements are the ones that let us feel seen—even if we’re cloaked in sea mist.