Fluorescent UV Glow in The Dark Powder Pigment | Black Light Reactive | Formaldehyde-Free & ECO Friendly | Multi-Purpose Use Tint Dye (KIT (10 X 0.5 oz), 10 Piece Sample Kit)

it glows using the black light 365nm. seller was very generous to include free sample yellow also glow green yellow.

Great portable black light. Good quality, have recharged it and all works well. Good product!

Product works really great. Had fun setting it up in the traps and following the little footprints. And tracking the little critters. It's a little hard to see when it gets in the rubbish. But it works well.

This UV/black light reactive powder is good quality and performs well under the right lighting conditions. However, I mistakenly expected it to glow in the dark, which it does not. I rated it accordingly, as the misunderstanding was on my part. If you’re looking for something that reacts under UV light, this product is a good choice.

I used this to mix into paint and slime to Halloween decor for a scene with radioactive toxic waste. It turned out nicely. This glows brightlu under a UV light just like you’d imagine. I carefully mixed it into the paint to ensure there was no mess. This powder I imagine is a bit like glitter and will get everywhere if you are not careful.

I used this powder to find where mice were entering our attic. Using a black light on the roof, I spotted a slight trail of the yellow powder the mice left as they exited a small hidden hole underneath the metal roof trim. The rascals left a trail of powder on the TV antenna cable too!

Good stuff, very sensitive!

Just floats at the top of the water. Green highlighter work much better then this stuff