Is the liquid in coloured glowsticks poisonous? cuz my brothers put it all over the walls?

Question

and now we're supposed to be swapping rooms. but with my ocd i cant handle poisons and stuff so need to know if its ok or not

Answer 1

http://en.wikipedia.org/wiki/Glow_stick

Answer 2

i dont think it poisonous i have broken quite a few on my hands and nothing ever happened from it