I had to take a pre employment drug test today, and I am definitely not clean so I borrowed some pee from a friend who I know is fine. The bottle that I put the pee in was an old lotion bottle that I thoroughly washed out (or so I thought). When I got the pee there I noticed there were a few little tiny pieces of left over lotion floating around in the bottle, not much at all, you would have to look hard to see it in there. I picked out what I could by hand. Do you think that tiny bit of product that was left over will alter the PH enough to fail the test?
Im not a drug test expert....so I don't KNOW if it'll result in a null test....but I also wouldn't be surprised at all if it did.... Good luck.