Here I have for you some natural swamp water from near to my home in Lancashire, England; as you can see in the photo it is from a very idyllic area, and is not regularly visited.
This place is in an area that has been woodland since the dawn of time, and has many little pools and swampy areas such as this dotted around.
Swamp water is traditionally used in baneful work - it can bring people's progress to a standstill, encourage deep and dark thoughts of a negative nature, poison a person's mind.
Add this to your jars and bottles.
NOT FOR HUMAN CONSUMPTION.