Beautiful Glow in the Dark Pressed Glass beads! They really glow in the dark. Exposure to light makes them really glow!
The image below shows the beads first in the dark, then in dim light then finally in daylight. Cool!
What makes the beads glow? There is an element, a part of the glass, that reacts to ultra-violet light that is baked into the glass. It absorbs the light and then glows when viewed in the dark. Its totally safe, no health hazards.