Quote Originally Posted by AlbinoRhino421
if you havent smoked in two years, it should only take like two or three weeks tops to get out of your system. if not, shave your entire body
Well, I believe if they do a hair test on you, they can basically see any drug you've done during your entire life. I could be wrong on this, however. But hair follicle testing is much more thorough and accurate, but it's costly.

Also, shaving can't do much, considering the follicle of your hair is not visible, so shaving will not shave off the follicle. I'm sure it would be much harder to obtain the hair follicle, though.

Edit: I was wrong. They can't see all the drugs you've done during your whole lifetime. Sorry. Hope I didn't scare you, lol.

Hair Follicle Drug Testing FAQ - Hair Testing Facts

"What time period does a standard hair follicle test cover?

A standard hair follicle screen covers a period of approximately 90 days, but is susceptible to time variation depending on the growth rate of your hair. The hair sample is cut as close to the scalp as possible and the most recent 3.9cm (or 1.5 inches) are tested. It is possible to go back even further than 90 days since the time period is limited only by the length of the hair sample, but is standardized to a 90 day history."