Repostspmo on Instagram: "Glow-in-the-dark pigment is a photoluminescent powder that can be mixed into clear or lightly-tinted paint to create surfaces that emit light after being exposed to a light source. The most common and long-lasting type is strontium aluminate–based pigment, which is non-toxic, chemically stable, and significantly brighter than older zinc sulfide formulations. When the pigment absorbs energy from sunlight, fluorescent lights, or LEDs, its crystal structure temporarily sto