Under a black light, various substances can glow due to the light's ability to cause fluorescence or phosphorescence in certain materials. Some of the things that glow under a black light include:
- Tonic water, which contains quinine and glows blue-white.
- Vitamins and drugs, such as B12, which can glow bright yellow.
- Chlorophyll, which glows red.
- Scorpions, which can glow blue or green.
- Fluorescent minerals, which glow in various colors.
- Petroleum jelly (e.g., Vaseline), which glows blue.
- Uranium glass or vaseline glass, which glow green, yellow, or blue.
- Some biological fluids, including saliva, semen, and urine, which contain fluorescent molecules and glow when hit with a black light
These are just a few examples of the many materials that can exhibit fluorescence under a black light.
