Quote Originally Posted by zomwoman
hello and thanks to all for advise on passing initial drug test..via substitution of friend's urine. now i find we have random drug test and i'm wondering if anyone could advise on the use of synthetic urine and it's reliability. or any other measures one might take in a random sitution.
much thanks for any suggestions/know about..
The difference between synthetic and human urine samples is lgG, which is a component unique only to human urine. Unlike creatine, lgG must be found in the urine specimen being tested or it will result in non-human urine on a drug test. It depends what the sample is being tested for, but most labs now test to make sure that the sample is from a human source.

Your best bet would be to store a real human urine sample until needed. Frozen Human urine samples can maintain integrity for up to a year. There are many companies on the web that offer pre-tested samples...(perfecturine.com)