I have heard of a LOT of solutions/home remedies people did and got sick from, and they didn't work, advising you about this is just a warning, if you know where to get supplies for the habit, you know where to find the solution for it to be untraced in urine, these supplies are costly, and most of these items are tested for as well as thc, nothing is failproof, thc will remain in hair and can always be traced back to how long it's been consumed, how much was consumed etc. Another friend JUST told me.. advise "The Extra Stuff" drink found in most hippie stores, whatever that means