Editors' Note: This is still the most recent version of the Echo Glow. Read our review from January 2, 2020 below.

The ability of living organisms to generate light ... of the effect in fireflies. It is a chemiluminescence reaction that takes place in fireflies, producing a distinctive yellow-green emission.

Complete with a yellow light for a brightening effect, the mask encourages a visibly glowing finish." The mask is portable so it could also be bundled into a suitcase for a holiday as well as ...

the sun’s light was passing through more air and atmospheric particles. Clouds during a storm can enhance the diffusion of sunlight, leading to a more pronounced yellow glow. If you’ve ever ...