I would start of with the yellow myself, just to get a feel for it... But you'll end up buying the green "Triple Strenght"(

) well before the regular stuff runs out...
And don't... Do Not, try the blue... Big mistake... That stuff is golbond foot powder... And all of their descriptions are very accurate...
Not to be gross, but you have to apply it to freshly towel-dried nuts

I can't believe I'm writing this sh!t