what is certo, I have a drug test tomorrow smoked a week before it, 5'8" 150 and I wennt tot he gym witha sweatshirt on, and refereed soccer all weekend (sweated) and have been drinking more before today (the day before the test). I only pisssed like 6 times today but have been pissing a lot omre the whole week. I want to be sure to pass tomorrow morning, I am also going the gym early before the test. is certo like gelatin or soemtihng and is it worth it for me to buy it??? Thanks