Well, I'm not going to tell you, at least not yet. I am having a contest. The contest has two parts.
1-What is the substance?
2-What are the 'ingredients' in the substance?
You can make your submissions in the comments of this post (come on, you know you want to do it. Even if you don't have a blog, just comment and tell me your name in the comment). I will post the answers and the winner in a week-ish.
The person who answers correctly (or maybe closest to correctly) will win one gallon of the mystery substance.
Good luck and happy guessing. (Oh yeah, and Jess is excluded from winning because she knows the recipe and don't think about trying to get it out of her, her mind is like a steel trap...).