No it won't work. This is not because you used it yesterday, but because the drinks Do NOT work. This is all over this site, I am surprised you have not previously found it. I know this will probably shoot your nerves, but not testing yesterday could be a blessing, because those drinks are serious marketing crap. Made by companies just looking to cash in on the drug test scare. You need to buy a qf. Browse the forum for posts on drinks and posts on qf's and you'll find ALOT of people have failed with drinks, I mean ALOT, and that qf's pass rate is 100%. Drinks are only a Really Bad version of N2's dilution method that you will find as a sticky at the top of the forum. If you plan on diluting again Eat Creatine NOW (big juicy T-bone works) to be prepared for tomorrow, DO Not buy another drink, it is a Huge waste of money, and follow N2's guide like a bible. Go to a friendly neighborhood head shop and pick up a qf, read the sticky on Substitution and PRActICE < this is your best bet! Good luck, and remember to tell anyone you know who uses those drinks that they are $5 worth of material marketed at $30 and they are less effective than just buying the material itself, i.e. total bullshit.