Your personal UV lighthouse. See the danger before it burns.
UV-responsive smart paint applied via a wearable yoyo applicator that provides real-time sun exposure tracking. The paint creates a visual 'lighthouse' warning system on your skin — changing from invisible to visible purple as you approach dangerous UV levels.
You look down at your arm mid-beach day and suddenly see the paint turning purple — your personal lighthouse beacon signaling exactly when to reapply sunscreen or seek shade, eliminating all guesswork about sun safety.