Student Creates Nail Polish for Touchscreen-Friendly Nails

If you've ever tried using a phone with long nails, you know the frustration of watching your perfectly manicured fingertips fail to register on the screen.

Manasi Desai, an undergraduate at Centenary College of Louisiana, decided this everyday annoyance deserved a solution. She set out to create a nail polish that would make fingernails work on touchscreens without sacrificing style or safety.

The problem is simple but stubborn. Fingernails aren't conductive, so capacitive touchscreens ignore them completely. People with long nails have been forced to awkwardly angle their finger pads or carry a stylus everywhere.

Some conductive polishes already exist, but they come with major drawbacks. They typically contain carbon nanotubes or metallic particles that can be dangerous if inhaled. They also only come in dark or metallic shades, limiting what nail art you can wear.

Desai wanted something better. Working with her supervisor, chemistry professor Joshua Lawrence, she tested over 50 different additives with 13 commercial clear coat polishes. After hundreds of combinations, she found two promising ingredients: ethanolamine and taurine.

Neither worked perfectly alone. Ethanolamine conducted electricity well but posed some toxicity concerns. Taurine (the same compound found in energy drinks) was completely safe but left the polish slightly cloudy. Together, though, they created a clear, non-toxic formula that could go over any manicure.

The polish isn't ready for store shelves yet. A thick blob works on screens, but a normal thin coat doesn't leave enough conductive material behind. The ethanolamine also evaporates quickly, so the polish only stays effective for a few hours.

Why This Inspires

This project started as one student's curiosity about making cosmetics more functional. Instead of accepting that long nails and technology don't mix, Desai saw a problem affecting millions of people and decided to solve it.

Her approach reflects something deeper about innovation. Rather than creating a completely new product, she's working to make an existing one more inclusive. She's showing that accessibility doesn't require giving up personal style.

Lawrence and Desai plan to keep testing new compounds and formulas. They know most experiments will fail, but they're committed to the process. "We're doing the hard work of finding things that don't work, and eventually, if you do that long enough, you find something that does," Lawrence said.

Soon, people with long nails might tap away on their phones as easily as everyone else.