The hair drug test: harder to beat, but easier to fight. While it’s always possible that THC levels in your body could go down low enough so that they’re not detected in a urine test after only a few days, a hair drug test is considerably different. Depending on how much of the hair is taken for the drug test, you could still test positive for marijuana use up to three years after the last time that you smoke. If you’re trying to get a job that requires a hair drug test first, then this is definitely a major issue for you. There are several different things that you can try if you know for a fact that it hasn’t been all that long since the last time you smoked.
First, you should cut your hair as short as it can – the shorter you cut your hair, the more likely it is that you’ll cut off all the hair that would test positive for THC. In addition, you can buy shampoo that works to strip all of the THC and other drugs out of your hair – which can help you avoid testing positive in a hair drug test. Usually these types of shampoo are not specifically designed to help you pass a hair drug test, however, they will work all the same. It’s important to make sure that you’re using a shampoo that will clean contaminants from your hair. These types of shampoo will also work to get rid of some of the oils from your scalp.
This is important, since a hair drug test will usually want to look mostly at the hair that is nearer to your scalp (it’s most important to them that you have not been smoking recently). After using shampoo that gets rid of the oils on your scalp, some of the toxins and traces of THC will be taken away from your hair – making a positive hair drug test even more unlikely. (Another advantage is that these shampoos will also get rid of any other toxins that may be making your hair look less healthy).
One advantage of a hair drug test is that they are not always conclusive. In fact, you’re more likely to get a false positive on a hair drug test than you are on a urine test. For this reason, if you test positive, you may be able to argue against the test results. While it’s not exceptionally common, it’s possible that you could get the results thrown out – however, if you’re going for a job, chances are good that this will still not help you to get hired. As a result, you should definitely make sure that you do your best to make sure that you do not test positive at all.