Skip to content
Call a poison centerGet help online
Loading Theme Toggle

Are glow sticks dangerous?

Test Image

The bottom line

A glow stick is a plastic tube containing two reactive chemicals, which combine when the tube is bent, resulting in a luminescent glow. Glow sticks are not poisonous. If swallowed, mouth irritation and an upset stomach may occur. The liquid can also cause skin and eye irritation. If the glow stick breaks and the liquid leaks into your mouth, eyes, or skin, rinse with water.

Prevention Tips

  • Use glow sticks as intended by the manufacturer.

  • Keep glow sticks and glow jewelry out of the mouth.

  • Keep glow sticks out of reach of pets.

  • Do not cut open glow sticks.

  • Supervise children if they are playing with glow sticks.

  • Check glow stick for cracks. If a glow stick is cracked, breaks open, or is leaking, discard it in the trash.

This Really Happened

At a party, a 16-year-old girl thought it would look cool if her lips and tongue glowed, so she intentionally bit into a glow stick. She immediately experienced a burning sensation in her mouth. She spit the liquid out and rinsed her mouth with bottled water. Still concerned that she had ‘poisoned’ herself, she sought advice from the poison center. She was reassured that rinsing her mouth was the only treatment needed and that she should be fine.

What is in glow sticks? How do glow sticks work?

A glow stick is a plastic tube containing 2 reactive chemicals: hydrogen peroxide and either diphenyl oxalate (i.e., cyalume) or a phthalate (i.e., dibutyl or dimethyl phthalate). The hydrogen peroxide is contained in a glass vial, which separates it from diphenyl oxalate or phthalate, a dye and sodium salicylate, in the plastic tube. The fluorescent dye supplies the color to the glow stick, while the sodium salicylate speeds up the reaction between the chemicals. When the tube is bent, the chemicals combine, resulting in a luminescent glow. This chemical reaction is called chemiluminescence. 

Are glow sticks radioactive?

No. Glow sticks are not radioactive.

Are glow sticks poisonous? What happens if a glow stick breaks in your mouth?

Glow sticks are not poisonous and are considered non-toxic. If the glow stick breaks in your mouth, it may cause mouth irritation and tastes awful. Wipe your mouth with a wet cloth and drink water. Swallowing the liquid may result in an upset stomach.

What are glow sticks used for?

Glow sticks are usually used at night, especially at parties, concerts, and celebrations. They are especially popular around Halloween. They are available as sticks, toys, jewelry such as necklaces and bracelets, and other gimmicky items. Other uses for glow sticks include as a light source for camping, diving, and emergency services.

Do glow sticks have glass in them? 

Yes. One of the chemicals, hydrogen peroxide, is contained inside a glass vial. When you bend the glow stick you break the glass vial. This is what allows the chemicals to combine. The breaking vial is responsible for the “cracking” noise you hear when you bend the glow stick to activate it.

What should I do if I get glow stick liquid in my eye or on my skin? 

The liquid in the glow stick can be irritating and cause a burning sensation to the eyes and skin. It can cause your eyes to tear up and sting. If it gets in someone’s eye, immediately rinse the eye with running water for 15 minutes. If it gets on the skin, wash with soap and water. 

If someone swallows glow stick liquid, gets it in the eyes or on the skin, or if you have a question about using glow sticks safely, use the webPOISONCONTROL® online tool to get help or call your poison center at 1-800-222-1222. Whether online or by phone, expert guidance is always free, confidential, and available 24 hours a day.

Related Articles

Back to blog
  • Girls in Halloween costumes

    Halloween poisoning prevention

    Halloween treats are great. Tricks are not! Go with your children when they trick-or-treat. Look at the goodies before they're eaten. Rinse liquid from glow sticks out of eyes if it's splashed. Drink some water if it's swallowed. And, stick to actual cosmetics meant for the skin when making up.

    Find out more