how long does dabs stay in blood

How Long Does Hash Stay in Your System?

Hash in Your Blood, Urine, Hair, & Saliva

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Daniel B. Block, MD, is an award-winning, board-certified psychiatrist who operates a private practice in Pennsylvania.

Verywell / Cindy Chung

Hash, which is short for hashish, is a preparation of marijuana made from the resin of the buds of the cannabis plant. Hashish oil, or hash oil, is the strongest form of marijuana since it’s so concentrated, with a pound of marijuana yielding just an ounce or two of hash or hash oil.

It can be used in preparing edibles, smoked, or ingested orally. The psychoactive ingredient in hash and marijuana is tetrahydrocannabinol (THC).

Since the processing of marijuana into hash oil isn’t standardized, even in legal production, it’s difficult to know just how much of the active ingredients are present in the hash oil. It can contain anywhere from 15% to 60% THC.

While marijuana is still considered a Schedule I drug at the federal level (meaning that it’s still considered to be a drug with no currently accepted medical use), several states and Washington, DC have legalized marijuana for recreational use for people over the age of 21.

As of March 2020, 34 states have laws legalizing marijuana for medical use and others have legalized cannabis-based oils with low-THC content. Hash or hash oil may be used as a form of medical marijuana and may be allowed in states where marijuana has been legalized.

How Long Does Hash Stay in Your System?

Blood: Up to 4 hours

Urine: Up to 30 days

Saliva: Up to 72 hours

Hair: Up to 90 days

How Long Does It Take to Feel Effects?

THC enters your body’s bloodstream rapidly after smoking hash oil. You feel the effects within minutes and they peak in about 30 minutes. If hashish is ingested, such as in baked goods or edibles, it takes longer to be absorbed into the blood, usually from 20 minutes to an hour and a half.  

Once in your system, you may feel like the effects have passed after two to three hours, although there can be some impairment for as long as 24 hours. The timeframe is extremely variable. Duration depends on the concentration of THC, which, as noted before, is not standardized with hash oil, even where it can be produced and purchased legally.

If you’re a light user, the effects of THC on attention, concentration, and working memory generally pass six hours after ingesting or smoking THC-containing products. During this period, your psychomotor skills are affected, so you shouldn’t drive or operate machinery. In a traffic stop, you could be charged with DUI, even if you have a prescription for medical marijuana.

If you’re a heavy user, there can be residual effects for as long as 28 days after you stop using THC-containing products. The physical side effects of hash oil include:

  • Dry mouth
  • Increased appetite
  • Increased heart rate
  • Red eyes
  • Vasodilatation (widening of blood vessels, which decreases blood pressure)

Due to the uncertain concentration of THC in hash oil, you should be cautious about the amount you take for medical purposes. Taking a large dose may result in the following:

  • Altered mood
  • Altered sensation  
  • Anxiety
  • Hallucinations
  • Memory problems
  • Paranoia

Fortunately, these effects will wear off over the course of a few hours.

How Long Does Hash Last?

The half-life of hash is how long it takes for half of the drug to be metabolized and eliminated from the bloodstream. Some THC metabolites have an elimination half-life of 20 hours. The half-life of fat-stored THC is about 10 to 13 days, meaning there is half of the original amount left at this time.  

Some of the THC in your bloodstream is rapidly metabolized into more than 80 different chemicals, known as metabolites. A portion of these metabolites is then excreted in your urine.   But THC and its various metabolites are also stored in body fat and remain in your system for much longer.

These metabolites accumulate, so if you use hash or hash oil every day, you will have more stores of THC in your body and it may take much longer to eliminate them from your system.   Some of the THC is stored unchanged, so when it’s released from fat into your body, it can again exert its psychoactive properties as well as be metabolized and excreted in your urine.


Blood tests are rarely used to detect THC since it can only be detected in the bloodstream for about three to four hours after use.


In general, the detection windows for THC in a urine test can range from 3 to 30 days, depending on how often you use the drug.

  • Daily use: 10 days
  • Daily use over an extended period of time: 30 days
  • Moderate use (4 times a week): 5 days
  • One use: 3 days


THC typically remains in saliva for 1 to 3 days, or until it’s fully swallowed. Drinking water, brushing your teeth, and using mouthwash may speed up this process.

THC can also be stored in your hair follicles, where it may be detected for up to 90 days.   This long elimination period can be of concern for someone who uses medical marijuana and who may need to take a drug screen.

False Positives

Previously, over-the-counter non-steroidal anti-inflammatory (NSAID) medications like Advil, Motrin, and Nuprin caused false positives on tests used to detect THC. The tests have been adjusted, however, and this is no longer a problem.

Factors That Affect Detection Time

How long THC stays in your system depends on a variety of factors, including age, amount of body fat, hydration, physical activity, and how frequently and how much hash you use.

Body Mass Index

Although not perfect, body mass index (BMI) is a method of estimating body fat levels based on a person’s weight and height measurement. Since THC tends to accumulate in fatty tissues, people with a higher BMI of body fat percentage may metabolize THC more slowly, causing longer detection times than a person with a lower index.

Since women tend to have higher levels of body fat than men, they may metabolize THC at a slightly slower rate.

Metabolic Rate

If you have a higher metabolic rate, the shorter the time a drug can be detected in the body. Metabolic rates can be affected by your age, physical activity level, and certain health conditions.


If you’re dehydrated, you’re likely to have higher concentrations of THC in the body after use. That said, drinking lots of water will only dilute a urine drug test, which in most cases, will mean you’ll be asked to retake it.

Frequency of Use

If you use hash one time, it might be detectable for only a short period of time, whereas heavy or very frequent use can cause concentrations in the system that can be detected for longer periods of time.

Smoking vs. Ingesting

Whether you smoke or vape hash, ingest an edible, or take it orally will also influence how long the drug stays in your body.

For example, when you ingest the drug or eat it in the form of an edible, hash takes longer to enter the bloodstream. It has to first go through the entire digestion process. This means it will stay in your body longer. If you smoke or vape hash, it will enter and leave your body more quickly

How to Get Hash Out of Your System

There is no reliable, quick way to remove THC from your body, despite what people and products claim. Certainly, drinking a lot of water and liquids or exercising vigorously may help, but you’ll still need time for your body to break down and eliminate THC metabolites from your body. The only reliable way to get hash out of your system is to discontinue use and wait.

Various companies sell drinks and herbal supplements like creatinine or vitamin B12 that claim to dilute your urine or “clean” the body’s system, but these drug screening agents may take time and are not always reliable.

Symptoms of Overdose

Medical professionals don’t yet know how much THC it takes to overdose. That said, THC toxicity has been found to result in psychotic episodes, uncontrollable vomiting, and heart arrhythmias. THC overdose can occur more easily with edibles, as it takes longer for your body to absorb the THC and feel the effects, which can prompt people to ingest more.

Drug Interactions

THC can interact with other drugs, including alcohol, as well as a number of medications like blood thinners and anti-anxiety medications. If you’re on any medications, discuss your use of hash oil and other THC-containing products with your doctor as it may influence your dosages.  

Getting Help

While marijuana, and by extension hash, isn’t considered a highly addictive substance, you can become psychologically addicted to THC and experience symptoms of cannabis withdrawal if you stop suddenly.

While these symptoms are milder than many other drugs, they still exist and may include cravings, mood swings, sleep disruptions, headaches, and digestive troubles. The frequency and amount of hash used prior to stopping will affect the severity and length of the withdrawal.

If these symptoms become intense enough to drive you to relapse to find relief, you’ll want to seek guidance from a healthcare professional who can offer coping strategies for the physical side effects. It’s also smart to get help if you find you can’t get through your day without hash; this may be a sign of a substance use disorder.

Setting up an appointment with a mental health professional or visiting an online or in-person support group can help you deal with the psychological symptoms of hash withdrawal.

Hashish, commonly known as hash or hash oil, can last anywhere from four hours to 90 days, depending on factors including the type of detection test.

How long do dabs last and stay in your system?

A number of factors determine the answer

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Some of the names used for dabs are butane hash oil (BHO), budder, honey oil, and wax. Whatever you choose to call them, dabs are essentially a highly concentrated extract of tetrahydrocannabinol (THC). THC is an active ingredient and the most psychoactive ingredient in cannabis. Vital organs such as the liver, heart, brain, and lungs absorb the fat-soluble molecules in dabs. Because first-time users can be intimidated about trying this cannabis concentrate, it is not surprising that the most common question asked is “How long do dabs stay in your system?” There are a number of factors that determine the answer.

How long does a dab high last?

Dabs are getting very popular among cannabis users, but they are still fairly new to mainstream weed culture. If you’re not sure exactly what dabbing is, it involves inhaling vaporized weed concentrates. The fat-soluble molecule in dabs is known as delta-9-tetrahydrocannabinol (THC), which gives a more intense high and a different sensation than smoking your usual flower. Dabs have a brown-green color, thick consistency, and an appearance similar to hot candle wax. To smoke it, you will need more specialized equipment such as a water pipe or a modified bong.

The effect of dabs lasts from one to four hours.

After a few puffs, you’ll be off on an intense high. The duration of the high depends on how your body retains the molecules.

If you’re used to smoking weed with THC levels of around 20 percent, the high percentage of THC in dabs can seem intimidating. You might be worried about how your body will retain the 70-percent-plus THC in dabs.

Whether you are a new user or a veteran smoker, dabs are a sure way to elevate your high and delve into new experiences. Don’t let the high THC percentage deter you: dabs are a great way to try something new. The key is to find your comfort zone by starting small. For most cannabis users, it takes about four hours to come down from a high from dabs.

A number of other factors determine how dabs will be absorbed by your organs, including how often you use them, how much you use, the method of consumption, and your metabolic rate. Therefore, the question of how long dabs stay in your system has a different answer for each person. It’s worth noting that increasing circulation and blood flow helps to get your metabolism going, which helps to process the THC. There are a number of drug tests used to detect dabs in your system.

How long do traces last in your system?

If you are preparing for a drug test, consider these numbers:

Blood: up to four hours.
Urine: up to 30 days.
Hair: up to 90 days.

There are many ways to detect the presence of THC in your system. The most popular drug tests are hair, urine, saliva, and blood tests. Each test has a different detection timeframe. Urine tests are the most widely used because they are cheap and easy to perform. You will test positive if the concentration is over 50ng/ml; some labs will have 20ng/ml cutoff points.

If you’re wondering how long dabs stay in your body, there is no magical way around it. By using higher volumes of dabs, you’re more likely to have a positive test.

Is it possible to get dabs out of your system faster?

Now that we have covered the question of how long dabs stay in your system, here are a few suggested methods to get the concentrate out of your system.

1. Exercise

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Exercise is a great way to naturally increase your metabolism. This will also fast-track the detoxification process. Detoxing is necessary to help break the fat cells that THC clings to.

2. Water

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Drinking plenty of water is the most common and probably the easiest way to work dabs out of your system. Hydration is essential. This will help you pass a urine drug test much easier. About two days before the test, drink at least 64 ounces of water a day.

3. Aspirin

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Try taking some aspirin about four to six hours before your drug test. Taking two to four aspirin should do the trick.

4. Cranberry juice

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Drink a couple of glasses of cranberry juice every day for about three days before the test. Cranberry juice has ingredients that can trigger the detoxing process quickly, kicking THC out of your system.

5. Creatine

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Creatine is an over-the-counter bodybuilding supplement that can accelerate the process of flushing the concentrate from your system. Take up to 100 mg per day.

6. Sauna

A combination of exercise and drinking a lot of water can be complemented by taking some time in the sauna to release toxins and chemicals from your body.

7. Pickle juice

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Believe it or not, pickle juice can get dabs out of your system. It contains acid that helps eliminate THC cells.

First-time users can be intimidated when trying dabs, it is not surprising that the most common question asked is how long do dabs stay in your system? ]]>