How long will THC show up on hair drug testing?

This person quit in November and was tested this week. He is not really worried about the urine test, just the hair test.

How long will THC show up on hair drug testing?

This question is asked by many different people, and for good reason. Marijuana is the most commonly used and tested for drug in the United States and several other countries as well. Marijuana is also the drug that is more likely to stay in your system for days, weeks, or even an entire month after the last time that you smoke. Therefore, even though marijuana is one of the least harmful drugs out there, it is also the most likely drug to cause you to fail a drug test.

When you ask the question 鈥淗ow long does marijuana stay in your system?鈥?you need to take into account the fact that there is no simple answer to this question. Quite simply, it鈥檚 argued both that THC never leaves your brain, as well as that there are several different factors which can affect whether or not you test positive for marijuana use.

The speed at which marijuana leaves your body depends both on the speed of your metabolism, as well as on the half life of THC. Unlike most other substances, the half-life of THC can vary quite a bit, depending on who is using it, when it鈥檚 used, and several other factors. For example, it鈥檚 estimated that THC can have a half life that ranges anywhere from 1-10 days. It鈥檚 almost impossible to find out what that half life is, which means that it is very difficult to use it to calculate how long it will take for all of the THC to leave your body.

Not only that, but your metabolism and how much marijuana you smoked will also have an effect on the length of time that it will take you before you can test without testing positive for marijuana use. After all, the half-life is only the length of time that it takes for you to lose half of the THC that is in your system. If you鈥檝e smoked a lot of marijuana, then it will take you longer before the THC in your body drops back below the amount that is detectable by most drug tests.

For this reason, when you ask 鈥淗ow long does marijuana stay in your system?鈥?you have to realize that it鈥檚 very unlikely that you鈥檒l be able to get a usable answer. The most common period of time is anywhere from 3-30 days, depending on your metabolism and the amount of marijuana that you鈥檝e smoked. This is unfortunate, since it means that while most drug tests can only turn up evidence of other drugs if you鈥檝e been taking the drug within a few days of the drug test, marijuana could still be detected in a urine test up to a month after the last time it is used.

Hair tests are even worse, since your body stores THC in the hair follicles. For this reason, the previous answers to 鈥淗ow long does marijuana stay in your system?鈥?are only useful if you鈥檙e going to be forced to take a urine test. For the hair test, depending on the amount of hair that the company takes, it鈥檚 possible that marijuana could be detected up to three years after the last time that you smoke.

If you鈥檙e worried about testing positive for marijuana, then you should definitely invest in some of the great products that will help you to test negative for marijuana use. This is due to the fact that it takes so long for the THC to leave your system that you鈥檒l probably test positive if you do not. If you don鈥檛 have an entire month to wait before you need to take the test, then you should definitely think about some other options to keep from testing positive. Go to your Head Shop Supply or Pipe Store they have testing supplies and products that will help you test -

2 weeks shave your head...

Good luck

How long will THC show up on hair drug testing?

If there is hair on his head that was there then it will come out positive! Urine test is nothing.

How long will THC show up on hair drug testing?

Forever. Hair tests the cuticle deep in the scalp. Even new hair is not safe. They can tell if you did something years ago

How long will THC show up on hair drug testing?

Should have shaved it off.