BAD NEWS. I just called the 800 number at this link, http://www.ipassedmydrugtest.com/drug_cutoff_levels.asp, and was informed that indeed, their hair test cutoff level is 1ng/ml. I also ask if with such a low cutoff level if that amount could be gotten through passive/second hand smoke and was told yes. If exposed to passice smoke more than once or twice, you could come up possitive on a hair test. That is redicules!!!!

OK, now I'm really confused. I decided to call UrineLuck/Spectrum labs. http://www.urineluck.com/contact.php The lady there put me on hold to check with the chemist and came back to tell me that hair in a hair test is desolved into a liquid, (I already knew that) and then tested just like a possitive urine sample would be with GC/MS. She told me that the cutoff was indeed the same as the standard urine test at 15ng/ml.

Now to really muddy up the water. I just spoke with a rep at http://www.psychemedics.com/, the manufacturers of a hair test, PDT-90, and was told that the cutoff for marijuana is 1 picogram per 10 milligrams of hair. She also told me that trying to compair hair test cutoff levels with urine cutoff levels was like "compairing apples with oranges".
That should clear thing up, as least as clear as thick mud! N2