Wolfsbane

Possibly my favourite potion of all the ones I've made.
It's the closest to description, kind of, Lupin described it as having a blueish smoke and this one when stirred leaves these silver trails everywhere. Plus the container was previously used to store crushed mint [Mint in powder form ] and so smells earthy [Wolfsbane is a really pretty plant btw for those who don't know :3]

You can find the label in my gallery as well