How to use glow sticks?

The utilisation of glow sticks is generally very safe. As a lighting device without a flame nor smoke, it is actually often used in case of an emergency and save some lives, and can be used in water.

That being said, its method of functioning relies on a chemical reaction and for that reason some precautions need to be taken.

Though the chemicals used are not life threatening for human, it is not recommendable to swallow and can cause some intoxication reaction from sensitive people. But no serious cases of intoxication was ever recorded. Contact with the skin and the eyes may cause a burning sensation and rinsing with water will solve the situation. It that sensation remains, one may consult with a physician or an eye specialist.