One question I often get asked is how do I make my rings glow. While it may look like magic, its not- It's just plain science.
Glow in the dark — also known as luminescence— simply requires chemicals that can store energy when exposed to light. These substances are called phosphors.
Phosphors radiate off visible light after being exposed to UV light. This means you have to expose the items to UV light for a while before they will glow.
They slowly release their stored energy over time. As they release the energy, they emit small amounts of light, which we see as glowing.
Two of the most common phosphors found in glow in the dark items are zinc sulfide and strontium aluminate. I use stronger, longer lasting, Strontium Aluminate in all my glow rings.