Question about Noxious Bolt

So I'm wondering whether Noxious Bolt Poison stack and if they do is there a limit?? I tried testing this out myself and I could not tell.

Not stacking but it cooldown, when you hit enemies or player, poison ticks in a moment and look at buffs, it gone then if u hit again, poison adds again, hope you understand my bad english.. i just wanna help

using multiple times on same target only refresh the duration i think

It's not so much that the nox bow sucks--it's more that 2h range is generally worse than dw range dps-wise AND it can't fire bakriminel bolts AND it lacks a viable Tutuapp 9Apps Showbox special attack.

hahahaha, best answers I've ever seen :D You guys must be so pros, can i get your autographs