On a bustling spring day in Seoul, a new chapter quietly began for Korea’s evolving fashion and beauty landscape. The hair loss and scalp care brand Refilled, operated by Constant, officially made its offline debut at the Musinsa Megastore Seongsu on April 30, 2026, signaling not just a business milestone but a broader shift in how Koreans—especially the younger set—approach personal care and style.
For years, hair loss was simply considered a natural part of aging, something to accept rather than address. But times have changed. According to 2024 data from the Health Insurance Review and Assessment Service, a remarkable 37.6% of all patients seeking treatment for hair loss were in their 20s and 30s. This surge isn’t just a statistic; it’s a reflection of a new attitude among the so-called MZ generation, who are increasingly proactive about self-care and prevention. The trend, often dubbed ‘preemptive care,’ has fueled a booming market for functional scalp care products and made brands like Refilled household names among the youth.
Refilled’s rise to prominence is no accident. The brand clinched the top spot in the hair loss care category at the Musinsa Beauty Awards 2025, a testament to its product efficacy and resonance with consumers. This accolade paved the way for Refilled’s early entry into the Musinsa Megastore Seongsu, which opened its doors to the public on April 24, 2026. For a brand that built its reputation online through genuine customer reviews and a loyal following, the move to brick-and-mortar retail is both a strategic leap and a nod to changing consumer habits.
At the heart of Refilled’s product lineup is its flagship ‘Booster Pro,’ a treatment designed to support hair growth and strengthen roots—a promise backed by the brand’s patented ingredient, cADPR. This unique compound is present in all Refilled products, and is credited with alleviating hair loss symptoms and helping manage hairlines, making it especially attractive to those looking to get ahead of the curve in scalp care. To sweeten the deal for younger shoppers, Refilled offers the Booster Pro in a special set that includes a long comb mirror, whimsically named ‘Tiny Ping,’ aiming to turn routine care into a more engaging experience.
But Refilled isn’t stopping at one hero product. The shelves at Musinsa Megastore Seongsu are lined with a variety of offerings, from treatments and dual ampoules for eyelashes to other innovative scalp solutions. The brand’s expansion into physical retail channels marks a broader commitment to reach consumers wherever they are—be it online or in the heart of Seoul’s trendiest shopping districts.
Refilled’s partnership with Musinsa, however, is more than just a retail arrangement; it’s emblematic of Musinsa’s outsized influence on Korean youth culture. According to JoongAng Ilbo, Musinsa has become a cultural powerhouse, shaping the tastes and wardrobes of young men in their teens, twenties, and thirties. The phenomenon even has a name: ‘Musinsa smell’—a tongue-in-cheek term that refers to the signature style popularized by Musinsa’s best-selling items. Think muted colors, basic wardrobe staples, and slightly oversized jeans—a look so ubiquitous among young Korean men that it’s become both a meme and a badge of belonging.
The phrase ‘Musinsa smell’ gained widespread currency after comedian Joo Hyun-young quipped about it on SNL Korea in December 2022, poking fun at the monochrome, slightly slouchy aesthetic that has come to define the Musinsa look. But as insiders point out, this isn’t necessarily a bad thing. The fact that Musinsa has inspired a meme of its own speaks volumes about its cultural clout. As JoongAng Ilbo noted, you don’t hear anyone talking about an ‘8Seconds smell’ or a ‘Spao smell’—Musinsa’s influence is truly unique.
At the center of this style revolution is Musinsa’s own private label, Musinsa Standard. Launched in 2017, the brand set out to offer ‘modern basic casual wear’ with a focus on slim, tapered, and semi-wide fits. Unlike Uniqlo’s boxier LifeWear, Musinsa Standard’s silhouettes cater to the preferences of younger men, making it a go-to for those seeking understated, versatile pieces. The demographic focus is clear: for many, a monochrome shirt paired with wide-fit slacks is as much a uniform as any school outfit.
The numbers tell a story of meteoric growth. In 2025, Musinsa Standard ranked fifth among Korea’s six major SPA (Specialty retailer of Private label Apparel) brands, raking in 451.8 billion KRW in domestic sales. That’s a staggering leap from 260.5 billion KRW in 2023 and 338.3 billion KRW in 2024—an average annual growth rate of over 30%. Musinsa Standard even managed to outpace H&M and is now nipping at the heels of Zara, a feat that underscores its rapid ascent in a fiercely competitive market. Since 2023, only Musinsa Standard and Uniqlo have consistently recorded double-digit growth rates among SPA brands in South Korea.
Yet, perhaps the most intriguing development is the shifting makeup of Musinsa’s customer base. While the platform was once dominated by buyers in their 20s and 30s—who accounted for 79% of offline purchases in 2024—that figure dropped to 73% in 2025. Meanwhile, the proportion of shoppers aged 40 and above jumped from 19% to 24%. A Musinsa spokesperson told JoongAng Ilbo, “This shift is a significant achievement, showing that we are evolving into a fashion platform that embraces all generations, not just a specific age group.”
This broadening appeal raises a curious question: why are Korea’s middle-aged men—sometimes called ‘Young Forties’ or ‘Yeong Forty’—flocking to Musinsa Standard? The term, which once described forty-somethings keen to stay young and stylish, has taken on a slightly mocking tone in recent years, hinting at the tension between youthful aspiration and societal expectations of age-appropriate behavior. But for many, the allure of Musinsa Standard’s sleek, modern basics transcends such labels. It’s about feeling confident, looking sharp, and participating in a cultural moment that values both individuality and community.
As Refilled settles into its new home at Musinsa Megastore Seongsu, it finds itself at the intersection of two powerful trends: the rise of proactive, science-backed personal care and the democratization of fashion across age groups. With its patented cADPR ingredient and a product range that appeals to both the style-conscious and the self-care savvy, Refilled is poised to ride the wave of Korea’s changing beauty standards.
In a city where fashion and wellness increasingly go hand in hand, the collaboration between Refilled and Musinsa is more than just a business move—it’s a sign of the times. As more Koreans, young and old alike, embrace the idea that looking good and feeling good aren’t mutually exclusive, brands that can bridge these worlds will continue to thrive.