One time a customer called, she had to take a urine test and smoked Marijuana on a daily basis. The lab did not watch her or search her but she did not want to use synthetic urine. Instead she thought it would be a good idea to use something to filter her urine.

“Hi, I had a drug test a couple days ago. I know this may sound really stupid but I thought a coffee filter might actually filter the toxins out of my urine. I smoked until the day before my test thinking this idea might actually work. I folded the coffee filter as many times as I could and I peed on it. The urine went through and into the cup. I was pretty confident I would pass, but I failed. I need to take another drug test sometime soon. What would be the best thing for me to use and why did the coffee filter not work?”

“The coffee filter did not work because drug metabolites are completely soluble in urine and are impossible to filter. The kit I would recommend you use is called the Fast THC marijuana detox kit. This kit is intended to be used on the day of the test and will work a lot better then a coffee filter or any other product you try to use to filter your urine. No product will work in filtering urine because again the drug metabolites are soluble in the urine.”

She purchased the detox kit, used it and passed her test.