I just wanted to thank IamN2pot, BurntToast, FakeBoobsRule, and anyone else from the bottom of my heart for all the great info on this site!! I am on probation in another state and got a call saying I needed to get a drug test within 24 hours. I knew nothing about what to do as this is the first time I've had to do it. After doing about 12 hours of research I decided to go with subbing with quick fix plus 5.7. BEWARE of the counterfits! The first box I bought at a head shop had the "Heat Factory" hand warmer which set of a red flag to me since I'd seen the counterfit announcement on this site. I called spectrum labs and they told me that it was probably not a good idea to use it. So I went out and found some at another head shop and it had the correct "Lil Hotties" hand warmer. I microwaved it and then attatched the hand warmer with a rubberband and drove an hour to the clinic. It was right at 96 degrees when I arrived so I blasted my heater and held the bottle up to the vent before I went in to get it up to 100. This way I had a lil time while I filled out paperwork. By the time I put it in the cup (I was UNsupervised) it was perfect at 98 degrees. The clinic sent it off to the lab and said they'd have the results in 24 hours if it was negative. If positive they would send it for additional testing. I knew it wouldn't be positive, but I was still really worried that it wasn't human urine. Nevertheless, I called this morning and the guy said I could come pick up my results and they were all negative! It worked!! I was soo happy and relieved as I had smoked the day before so there was no way I could risk diluting. My only advice would be to not use the squirt top as it made noise when i stopped squeezing the bottle (luckily the guy didn't hear it). I would just pour it in the sample cup. Anyway, I could never have pulled this off without this site, so thank you all so much!! Its good to know there are good people out there that know that green is a gift from the Gods and nobody should be denied its benefits! Regardless of any employer or govermental official trying to take it away from us! For all the sceptics out there who are afraid of using the synthetic urine, as I was, I HIGHLY recommend Quick Fix 5.7. Works like a charm.