We were just goofing around with a black light when my 9-year-old held out her hands — and boom 💥 bright blue glowing marks appeared all over her skin. Totally invisible in normal light.
She scrubbed and scrubbed, but nothing changed. Still glowing. Still weird. Still kind of magical… and slightly creepy.
After some digging, I learned that this kind of glow can come from residues or natural skin reactions — things like:
✨ Certain soaps, lotions, or petroleum-based products
🌿 Mild fungal infections that fluoresce under UV light
💧 Laundry detergent or sunscreen traces
👕 Even microscopic lint or fibers from clothes
Basically, black lights reveal a secret world of hidden residues — stuff our eyes can’t see in daylight.
It’s a little science, a little mystery, and a total reminder that our everyday world glows in ways we never notice. 🔦💙
So yeah, maybe not aliens or smart dust — but still pretty freaking cool.
Most likely explanation: