Greta Costioli, known as the “glass skin girl” on TikTok, has recently drawn attention for her elaborate skincare routines aimed at achieving an ultra-dewy complexion, reports BritPanorama.
The 29-year-old Costioli began experimenting with layered moisturizers and toners as a teenager, and embraced the popular “glass skin” trend by incorporating multiple hydrating products into her regimen. This trend, which reflects a significant aspect of South Korean beauty culture, has gained traction on platforms like TikTok and Instagram, with influencers showcasing their skincare routines for achieving a glossy look.
This trend reached new heights in popularity towards the end of 2025, with a major surge in content related to achieving flawless, pore-less skin. Influencers and celebrities, such as Kylie Jenner and Hailey Bieber, have taken to social media to document their skincare methods that promise similar results. However, this enthusiasm for intricate routines raises concerns among dermatologists.
What it’s based on
The term “glass skin” originated within South Korea’s beauty culture, denoting skin that appears exceptionally smooth and hydrated. As observed by various responders, the appeal of the glass skin trend may be rooted in the emotional resonance of ASMR-like videos, wherein viewers watch influencers softly tap and apply products to their skin.
What we do or don’t know
While elements of this skincare approach, like moisturizing and using sunscreen, are beneficial, dermatologists caution that excessive layering of products may lead to skin problems, including acne and irritation. Notably, a study presented at the European Academy of Dermatology and Venereology Congress in September 2026 revealed that nearly 95% of the most popular videos on this trend contained misleading claims regarding dermatological care.
Dr. Maria Lúcia Paysano, a co-lead author of the study, noted the surprising consistency of gaps in quality information presented by non-medical influencers. Given that the trend’s visibility has led many users to overshadow fundamental skin health, experts are highlighting the risks of adopting a complex regimen without adequate understanding of individual skin types.
Impact on individuals
Costioli herself experienced adverse reactions after initially benefiting from her extensive routine. Although she found success early on—often receiving compliments for her complexion—she eventually encountered issues related to her skin barrier, prompting her to simplify her regimen.
Specialists underline that social media’s ability to magnify such trends can amplify misinformation, with many viral videos lacking appropriate safety recommendations. Healthcare professionals advocate for a more tailored and medically-informed approach to skincare, arguing for the necessity of individualized care rather than blanket adherence to popular beauty standards.
In conclusion, the allure of glass skin is undeniable, yet experts emphasize the importance of balancing aspiration with reality. The conversation surrounding skincare trends continues to evolve as awareness of safe and effective practices takes precedence.
