I had completely regarded using a synthetic pee with all of GOOD results. I am reading a bunch of things letting me know this may not work for me any longer. I am 45, bought a 10.00 sack two weeks ago and smoked a half a joint last night. No not even hydro or half that good. Peeing one week from today for a job application. I will have all this week to clean. I do not work out much and on the hefty side.