What makes a fluorescent highlighter marker so bright?

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What is in highlighters that makes them so bright? - Quora

Desk highlighters offer a large barrel for a comfortable grip. The chisel tip applies ink smoothly and evenly so you can highlight important notes and

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What makes highlighters neon? – How It Works

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Fluorescent colors are loud and can be tricky to use and combine: here's how to do it gently, by Ruxandra Duru

Chemistry

What do the red and green channel markers mean? - Quora

Fluorescent colors are loud and can be tricky to use and combine: here's how to do it gently, by Ruxandra Duru

What makes a 'fluorescent' highlighter marker so bright? - IIT JEE Main & Advanced - by Sanket Tiwari - Quora

All that glows: what makes highlighter ink so bright and what else shines under UV light? - YP

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