The Clean Girl aesthetic is a fashion, beauty, and lifestyle microtrend that emerged on TikTok in late 2021. Characterized by minimalism and a hyper-curated "effortless" appearance, the aesthetic prioritizes a look of disciplined wellness: dewy skin, slicked-back hair, neutral clothing, and an organized lifestyle. The Clean Girl aesthetic focuses specifically on the visual presentation of looking "put together." Because of this, it is often described as an evolution of the That Girl trend, which focused on productivity and self-improvement.

While marketed as a celebration of natural beauty and low-maintenance routines, the aesthetic has faced considerable criticism for promoting unattainable perfectionism, classism (disguised as "cleanliness"), and the appropriation of styles historically associated with Black and Latina women, which were rebranded as "new" trends for a predominantly white audience.

The Clean Girl aesthetic coalesced in late 2021 as a reaction against the "maximalism" and chaotic algorithm-driven trends of the previous years. Cultural commentators have noted that it drew heavy influence from the "model off-duty" looks of the 1990s, early 2010s wellness culture, and luxury minimalism.

The trend gained popularity through the influence of celebrities such as Hailey Bieber, Sofia Richie, and Bella Hadid, whose street style and beauty routines became the primary points of reference for the aesthetic. By the summer of 2022, with the launch of Bieber's skincare brand Rhode, the aesthetic had solidified into a dominant social media trend, influencing marketing across the beauty and fashion industries. Despite predictions of its decline in favor of messier trends like " Indie Sleaze ," the Clean Girl aesthetic persisted into the mid-2020s, evolving into adjacent microtrends like " Vanilla Girl " or "Quiet Luxury".

The Clean Girl aesthetic is characterized by "invisible labor"; a polished appearance that insists it took no effort while requiring significant maintenance. The most important element of the aesthetic is "glowy" or "glass" skin, achieved through extensive skincare routines rather than heavy coverage. Makeup is minimal but strategic, utilizing tinted moisturizers, cream blushes, and clear brow gels to create a "no-makeup makeup" look.

Hair is almost exclusively worn in a tight, slicked-back bun or ponytail, secured with a claw clip or scrunchie. This style typically requires products like hair oil, gel, or masks to achieve a smooth and glossy texture. Eyebrows are brushed up, laminated, or "feathered" to appear full and fluffy.

Clean Girl fashion relies on a capsule wardrobe of elevated basics in neutral tones (white, beige, gray, brown, black). The aesthetic's goal is to look expensive but understated.

The aesthetic extends into a performative lifestyle of discipline and wellness. It promotes habits that signal a life of order and health: waking up early, drinking green juice, attending Pilates classes, and maintaining an immaculately organized living space. This performative wellness is often documented on social media through "day in the life" vlogs that emphasize productivity and self-care.

The most significant criticism of the Clean Girl aesthetic is its appropriation of styles historically associated with Black and Latina women, particularly the combination of slicked-back hair, brown lip liner with gloss ("brownie glazed lips"), and large gold hoop earrings. Critics argue that these styles were historically stigmatized as "ghetto" or "unprofessional" when worn by women of color in the 1990s and 2000s. However, when adopted by white influencers like Hailey Bieber under the "Clean Girl" label, they were celebrated as "chic" and "effortless".

The practice of hair oiling, a long-standing tradition in South Asian culture often ridiculed in the West, was similarly co-opted and rebranded as a "new" hair hack for the aesthetic.

The term "Clean Girl" itself has been criticized for implying a moral hierarchy where those who do not fit the aesthetic (such as people with acne, textured skin, or non-European facial features) are inherently "dirty". The aesthetic is also viewed as financially exclusionary; while it markets itself as "minimalist," achieving the look often requires expensive skincare regimens, specific designer basics, and costly treatments (facials, brow lamination), making it a signifier of wealth rather than simplicity.