2 Answers

    Meth is one of the most notorious drugs – frequently in the news, it destroys individual lives and communities due to its addictive properties. Meth has made the cover of major magazines like Time and Newsweek more than once. It is important for someone wanting to drug test for it to know exactly how long meth stays in the system.This is a largely misunderstood area, and a tricky question, because drugs can be detected in different parts of the body for different lengths of time. As our Drug Test Detection Times chart shows, the time meth is in your system varies. It varies, first of all, because our bodies vary – weight, metabolism, and overall health are just a few of the many factors that influence how long it takes the body to process drugs. But drugs pass out of commonly tested body fluids at different rates too.

So, for example, 72 hours (3 days) is near the end of the time frame in which meth can be detected in saliva. It can be found as soon as 5-10 minutes after being used though.

Meth can generally be detected in urine for 3-5 days after use. 2-5 hours after use the urine drug test detection period begins. A urine Meth Test is extremely accurate (more than 99%) and FDA Approved as well.

Meth stays in your hair, however, for 90 days and longer (90 days is just the industry standard for a consumer hair drug test – labs can actually go back longer than that). It takes about a week after use for the hair with meth traces in it to grow out of the scalp, but after that, a pair of scissors can clip the hair for a hair drug test and the meth will be found.

For all of these tests, you do not have to be a chronic user to have your use detected. The body, and drug tests, are very sensitive and pick up even one-time use.

Meth can stay in your system for a long time. This is just another reason to make sure that a drug as dangerous and harmful as meth stays out of your system.

http://www.homehealthtesting.com/blog/2010/03/how-long-does-meth-stay-in-your-system/

Check out 'meth mouth' on Google. This will give you an idea as to the effect of meth on the teeth and mouth.  In new Zealand I have seen this and the effects are truly dreadful.