idk i got it once and ym friends like you fucking idiot thats the wrong visine, it fucks with ur eyes if you have no contacts in. and i odnt think it worked for me but it was so long ago. jsut steal some visine L.R. i swear by that stuff, works for like 4-6 hours!

disclaimer: the only thing i steal is visine, because its so neccesarry and overpriced. dont consider me the type who takes what isnt his.