Kat answered question 5/10/2009 How Long Til Crystal Meth Doesn't Show Up On Hair Test? Until you shave your head completely...for 4-6 mos.
Kat answered 5/10/2009 Can You Detect Niacin In A Drug Test? Only if the dr. Specifically asks for it on the tox screen.
Kat answered 5/10/2009 Will Air Duster Show Up In A Drug Test? In the more advanced tests, yes...more and more dr.'s and clinics are using these tests.
