This makes invisible blood glow blue!

Hinzugefügt: 2026-05-24

[00:00:00]This spray makes invisible blood glow blue even after being scrubbed away. It is called luminol. Mixed with hydrogen peroxide, it reacts with iron in hemoglobin. But here's the catch.

[00:00:16]Bleach, copper, and even horseradish can trigger the same reaction. That is why investigators never use it alone. It is a scene narrowing tool, not courtroom proof. Would you trust a glowing floor in court? Drop your take. Follow Crime Forge for more real forensic science.