I know the zombie event is over, and there are a lot of skins available, my question is...I've got last years potions if I use them will the Virus run their course to give me the skins in the skin area of the wardrobe?

If I'm not mistaken the potions are a temporary thing, as they reach a certain stage and then regress and do not have skins for them, but there is an achievement to gain if you do not already have it

ah alright, well that's something to know