My friend has been clean of everything since July, but he stupidly took one 2 mg xanax
17 days ago and one ecstasy
tab 16 days ago, and will be having a hair test soon for a job.
He has short black hair about 1.5 inches long. I have read some sources saying that isolated use wouldn't show up in a hair test because it would fall under the rate of detection.
He will be doing the MacCujo method incase, taking biotin pills, shaving and trimming his body hair so they will take it from his head and not pits or body. He will also buy shampoo from a head shop and will possibly get himself tested before hand. Will also delay aslong as possible and have hair cut to 1.25 inches before the test.
But my main question is if its true that an isolated incidence of use will not show up as positive?