Test Tommorrow

Okay so I have a test tommorrow. Last time I smoked was the 7th, and before that probably at least 4 days. I was just wondering if I used a detox drink (yea i know that its a waste of money because you can use water and B 12 pills, but I have I bought it before I knew that so o well) if it would dillute it enough or if im just screwed. I am about 6'2, fairly skinny and in good shape as well as having a fairly high metabolism. Just wanted to know if you guys think I have a chance or if I would just be screwed anyway.

O yeah the stuff is called Purified Brand Instand Acting Complete Body Cleanser. If that evens matters I don't know...