Our glow rings are made with a non-toxic, naturally occurring material called strontium aluminate. We use three times more strontium aluminate (aka, glow powder) in our proprietary glow material compared to our next nearest competitor to ensure our rings have the brightest, longest-lasting glow on the market.
To make your ring glow, you can easily charge it with either sunlight (just leaving it on a sunny windowsill works great) or with the free mini UV flashlight we include with every glow ring order.