Stylish or stylus? Fingernails go high-tech

💅Transformative nail polish

Conspicuously long fingernails have been around for centuries. Portraits of ancient Chinese philosopher Confucius often show his lengthy nails. During the Ming and Qing Dynasties in China, inches-long nails were adorned with elaborate nail guards made from precious substances like jade to convey high social standing, wealth and a life of leisure. Fast forward 600 years and the custom is alive and well, evidenced by the ubiquity of nail salons. For anyone needing to perform everyday tasks like access a touchscreen phone (in other words, pretty much everyone), superlong fingernails are impractical. But what if you could turn them into a stylus? An experimental conductive nail polish could transform the humble manicure into a functional tool. Skyler Ware nails the write-up for SN.

🥼 From lab coat to top coat

The research was born from necessity, when undergraduate chemistry student Manasi Desai was struggling to type on her touchscreen. With her adviser Joshua Lawrence, an organometallic chemist at Centenary College of Louisiana in Shreveport, Desai developed a blend of taurine (a common dietary supplement) and ethanolamine (possibly toxic in larger doses, so further testing is needed). They suspect that together, these molecules move charge around in response to a touchscreen’s electric field, just enough for the device to register a touch event. While currently in the provisional patent stage, the research serves as an interesting use case for functional electronics embedded in everyday consumer cosmetics.

💸 The $330 billion beauty-tech boom

If it emerges from the laboratory, this product could join the ranks of the weird and wonderful smart beauty category. The global cosmetics market reached $330 billion in 2025, driven increasingly by high-performance biotech formulations and personalized beauty-tech devices. From AI-driven skincare analysis featured at tech show powerhouse CES 2026 to light-therapy face masks and needle-free nutrient delivery systems, the industry is aspiring to clinical-grade results delivered via a morning routine.

👄 High-tech beauty forerunners

While the new polish seeks a path to market (a fully nontoxic formula, a commercial partner and the proven ability to scale — none of which are yet certain), several startups are already scaling in-demand technology for skin and nails:

• Therabody makes an LED-powered “red light therapy” device resembling a hockey mask that the company says improves circulation, relieves tension and enhances facial skin radiance. (Note: the American Academy of Dermatology has concerns about this kind of treatment, particularly when self-administered, and for those with darker skin tones.) The company has raised $165 million through private equity and reports sales of 6.5 million of its flagship massager product.
  
• OneSkin: This longevity-focused startup has designed a microneedle dermaroller for the scalp. Its line of topical skincare products center around a peptide (yes, peptides really are popping up everywhere) that in lab studies lessens accumulation of a damaged cell state that piles up in aging skin. They’ve secured $46 million to date, including a $20 million Series A round last year.
  
• LogicInk: Specializing in temporary tattoo wearables, LogicInk develops skin sensors that track UV exposure. A sensor for hydration is in development. They’ve raised approximately $1 million to date.

In the future, staying connected can be both stylish and stylus.

---

Disclaimer: The Science News Investors Lab newsletter is for informational purposes only and does not constitute investment advice. Society for Science and Science News Media Group assumes no liability for any financial decisions or losses resulting from the use of the content in this newsletter. Society for Science and Science News Media Group do not receive payments from, and do not have any ownership or investment interest in, the companies mentioned in this newsletter. Please consult a qualified financial advisor before making any investment decisions.