Glow sticks are transparent plastic tubes filed with chemicals that are separated by glass tubes. When the stick is bent, the internal glass tubes break, allowing the chemical to combine and produce a reaction that makes the materials glow. Glow sticks provide hours of entertainment for kids, but if broken open can cause stains on fabrics and other surfaces. Nearly all glow sticks contain hydrogen peroxide, phenyl oxalate ester and fluorescent dyes that produce the stains. Even though these chemicals are considered non-toxic, the liquids should not be ingested or allowed to contact the eyes.
Rinse the glow stick stain in cold water as soon as the stain happens, if possible. Cold water will help lift the stain before it sets in the fabric.
Create a solution of equal parts color-safe bleach and cold water. Soak the fabric overnight in the solution.
Pre-treat the stained area with a stain stick or spray and wash normally. If you still notice the stain, repeat steps 1 and 2 before drying.