Hey bros, I have another add on for this thread. I have only used this once and passed but a solid friend said he used it 5 times and smoked the day before. The night before drink a gal of water with a small package of "pectin" the stuff that makes jello jell and then as much water as possible. No physical side effects and clean urine. Also dont let your test pee be the first of the day, second pee in the urinal alittle firstas there is some build up in the chute. And I love to use synthetic pee if you can afford it @ $25. But though they will give you a hand warmer and temp strip to make sure your temps are correct, always keep an extra hand warmer around because Ive had them not work out of the package and keeping it in your underwear usually does not work well enough. Also Highly recommended is "urine luck", two timy vials of something that motabalizes pot "things" in the cup after you pee in it. Ive heard this work like clock work UNLESS you are taking other perscription pills that over load the active ingredients. the urine luck is easier to keep on you at all times with no worries about temp but the synthetic works for sure everytime for me. And my shit was on the line and it worked three times. Good luck. Keep on puffin. out