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How Long Does Weed Stay In Your System?

Law enforcement agencies are increasingly employing this method for roadside testing, since it can swiftly and accurately identify drivers under the influence of marijuana. “Blood tests usually detect marijuana for relatively short periods of 1 to 2 days [after last use],” Sternlicht says. Proper hydration can prevent a drug test from showing unusually high THC concentrations. For people whose test results are on the border of positive and negative, this means that being dehydrated may increase the chances of a positive result. The researchers believe that exercise may cause fat cells to release THC. In their results, people with higher BMI had more significant increases in THC levels.

  • Not only will this help you be more aware of if you can be drug tested you will also know what your recourse is if you do trigger a positive result.Knowing your rights is key.
  • While cannabis has been more legal in many states than before, some employers still frown upon its usage.
  • Also, there is saliva along with other body tests that detect the presence of drugs in the body.
  • It has all of the crucial components like urea and creatinine.

But, as an employee, if you test positive, you will have a tough time proving yourself. You can take a hair follicle drug test to check drug consumption in the last 3 months. However, if you need to detect drug use in the past week or so, opt for a urine drug screen test. Also, there is saliva along with other body tests that detect the presence of drugs in the body. It does take some time for a particular drug to reach the hair follicles though.

Aloe Toxin Rid Shampoo

This specialized shampoo is designed to remove any toxins from your hair, leaving it clean and drug-free. Marijuana can stay in the body from 3-30 days, sometimes longer. Research on the length of time a test can identify marijuana revealed a broad range. A study from 2017 suggested a detection window for a single marijuana cigarette of around 72 hours. Hair follicle tests can assess drug use for up to 90 days.

How far back does a hair follicle test detect drugs?

The simple answer is hair drug testing can go back as far as the hair shaft is long. So, if a 3cm section of hair provides an approximate 3-month overview, a 12 cm section of hair can offer an approximate 12-month profile.

In this case, the laboratory is unable to perform a proper test. Additionally, the test is deemed inconclusive if anything goes wrong at the lab or the test doesn’t show satisfactory results. Therefore, one might send in another sample for a retest. There are therapists who can help you understand your reasons for using. They also can help you determine how cannabis use is impacting your life, and how to develop a plan to stop using if that ends up being the best choice for you.


In this article, we are going to help you understand what a hair drug test is, and how you can pass it along with the do’s and don’ts. If marijuana is smoked or vaped, the THC levels in the body will drop faster than if you ingest it. Edibles take longer to break down in the body and leave your system. Urine tests for marijuana metabolites also only show recent marijuana use, not current intoxication or impairment.

The laws regarding cannabis have changed in recent years. What separates cannabis from hemp, from a legal standpoint, is that any plant from the cannabis family that has less than .3% THC is considered hemp and legal. There are some dos and don’ts you have to follow for a drug test. The method uses several ingredients that you will find at home, such as vinegar, baking soda, and lemon juice. It is a seven-step process that will eliminate toxins from the system. “There are products and lots of anecdotal stories on what will work, but the only way to truly clean out your system is to stop consuming,” Hatch says.

Factors That Influence How Long Does Marijuana Stay in Your Hair Follicles

However, how high a person feels is not a reliable measure. Other factors, such as the consumption of other drugs or alcohol, can intensify this feeling as well as other effects. Marijuana drug tests check for THC, not marijuana itself.

how long does weed stay in hair

The lab assistant or the doctor will take only a tiny amount of hair and send it for analysis. Studies reveal that one bleach can remove 40%-80% of metabolites. While the bleach method may work for some, it may not work for all. The effects of THC are collective, meaning that a person who smokes several times in a brief period has consumed a higher dose of THC than a person who smokes once. Therefore, they are more likely to receive positive test results. Drug tests can identify THC in urine, blood, and hair for several days after use.

If you still want to know how to pass a drug test then do the following. So, if you do have time before you are scheduled to take the test then use the described methods. Otherwise, we recommend you use detox shampoos to pass a follicles drug test. The best part of this detox shampoo is the additional things you get with it. You get a conditioner and a purifying treatment along with it. After applying the shampoo to your hair and rinsing it you have to use the purifying treatment.

how long does weed stay in hair

Because marijuana stays in the bloodstream for only a short time, blood tests for marijuana are usually not used. The exceptions are in the case of automobile accidents and some roadside sobriety checkpoints. It is important to know that not all marijuana is created equal. how long does weed stay in your system Unlike other prescription drugs, marijuana products aren’t standardized and can vary considerably in quality, makeup, and dosage. The effects of marijuana can vary from person to person. Some people may feel euphoric and relaxed while others feel anxious and paranoid.

Abstain from Marijuana

Risking the outcome of your upcoming test on just abstinence isn’t going to do any good. To help you understand hair follicle drug tests, we are going to list the pros and cons of the hair follicle with the pros and cons of saliva and urine drug tests. For urine and saliva drug tests, a confirmatory test is common if they test positive for drugs.

  • If marijuana is smoked or vaped, the THC levels in the body will drop faster than if you ingest it.
  • As hair grows, these metabolites become trapped within the hair shaft.
  • Go for a full-blown detox technique, such as The Macujo and Jerry G. Both are used widely but the Jerry G method is recommended more since it gives faster results.
  • Someone who has been using marijuana regularly is likely to have a buildup of THC in their system, meaning it will take longer to leave the body.
  • For some organizations, the primary reason to choose mandatory hair follicle drug testing is its longer detection time.

This is how THC undergoes changes and creates 11-OH-THC. The active metabolite has sedative and psychoactive effects. For any pot user, nothing is as dreadful as a drug test. Thus, how long does marijuana stay in your system becomes a very important question to which you surely want to know the answer? But don’t worry you don’t have to bring out your calculator to do the math because we are going to do that for you.

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