Not Safe Glowing Powder Blue

THIS IS A NON-STERILIZED PRODUCT, NOT SAFE FOR BIO USE, READ FURTHER Comes in pouches of 2.5-3 grams each. Packaging may vary. Disclaimer: These powders are not safe or viable for bio-use. We do not guarantee any specification whatsoever. These are rejected samples / byproducts / failed batches etc... About the powder: This is silica-coated Strontium Aluminate phosphorescent, non-toxic powder. Composition: SrAl₂O₄ - Doped with Europium and/or Dysprosium and potentially toxic additives. Coated with silica using a method similar to the Stöber process making it waterproof. About performance: Best be charged with a UV light source, the glow is then visible in daylight - can theoretically glow up to 10h. Colors vary in brightness with green being the brightest.