It contains sea salt as well that's why can create volume.
no it doesnt *stare*
it contains the extremely hard silicon remains of microscopic diatoms. anyway these and seasaltsprays and powders all work the same way, by increasing friction. try it!(or should i say, try them!) you wont regret
edit: when i mentioned powders i was referring to the q8 one as basis of my generalization. it appears that the osis version has some kind of wax inside that bonds hair also. thats why its stronger and harder to wash out.