How Long Does Meth Stay In Your System?

Meth is one of the most addictive drugs and it also has potentially fatal side effects. Discover what affects how long meth stays in your system and how the body breaks down meth.


Methamphetamine is a very addictive artificial stimulant. It is also known as meth, crystal, ice, and Tina. Any recreational use of the drug is highly illegal. The effects of methamphetamine are long-lasting. Some reports suggest that they can be felt up to 24 hours after taking the drug. Meth drug use can be detected much longer than that. So, how long does meth stay in your system? The answer depends on the part of the system. It differs for blood, saliva, hair, and urine. 

According to the data from 2021, an estimated 2.5 million Americans aged 12 or older abused methamphetamine in the previous year. The data is alarming as using this illicit drug can cause grave health troubles and can even be lethal.

Continue reading to find out how long meth stays in your body, how to battle meth addiction, and how the We Level Up NJ addiction treatment center can support you.

How Long Does Meth Stay in Your System?

Each part of the body has different detection windows for meth, reflecting how the substance is metabolized and eliminated. Understanding these variations, and with that, how long does meth stay in system, can help individuals make informed decisions about their health and legal matters.

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How Long Does Meth Stay in Saliva?

The saliva test is non-invasive. Like blood, saliva tests offer one of the shortest detection windows by detecting meth shortly after use, typically within minutes and up to 48 hours after the last use. This method is frequently used in roadside drug testing and workplace screenings.

Saliva samples are often collected by placing an absorbent swab between a person’s gums and lower cheek. The swab is left for several minutes before the sample is sent to the lab for testing. 

Crystal meth can normally be detected in saliva or oral fluids for one day. However, in some cases, it can be detected up to three days later. This factor is because substances like meth are immediately metabolized and eliminated from the membranes and secretions of the mouth, making it harder to identify them.

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How Long Does Meth Stay in Your Hair?

A hair test is another non-invasive method to test for meth use. It involves analyzing a small sample of hair, usually from the scalp. Tests using the hair sample are best suited for detecting heavy meth use. However, it won’t necessarily identify one-time use of the drug. A hair test will show what substance entered the body, when it first entered it, and when it last entered it. 

Hair tests are usually expensive compared to other types of testing. Another issue is that environmental contamination has been proven to cause false positives.

Hair has the most extended detection period for meth. Methamphetamine can be detected in hair follicles seven to ten days after an individual has used it. The substance stays in the hair for up to ninety days. 

Illicit drugs such as cocaine, opioids, and meth tend to adhere more strongly to hair with darker pigments. Myths about achieving a clean drug test, like dying your hair, baking soda bombs, or drinking a lot of water, do not help. The only way to help you achieve a clean drug test is not to take drugs long enough before the test.

How Long Does Meth Stay in Urine?

Urine testing is the most popular and cost-effective method to screen for meth use. This is because meth and its primary metabolite, amphetamine, will appear in urine within an hour of ingesting the drug. The frequency of meth use will impact how long does meth stay in urine. Samples of urine obtained from occasional meth users will test positive one to three days after the last use. A chronic meth user might still test positive seven to ten days after using the drug.

How Long Does Meth Stay in Your Blood?

Substances are immediately metabolized and broken down in the bloodstream. As a result, while meth can be discovered using a blood drug test, the period for detection is narrow compared to other methods. Blood tests can detect the presence of a substance up to 2 days after the last dosage.

Blood analysis.
The answer to the question of how long does meth stay in your body will depend on the test used to detect meth.

How Long Does a Meth High Last?

A meth high has multiple stages and can last hours or days. Unlike cocaine, meth delivers a lengthy euphoria experienced in several stages. During the meth rush phase, a user is high for about 14 hours. The next stage can be even longer than meth high. Thus, the answer to how long a meth high lasts is that the totality of all stages for a high that lasts 2–3 days.

When the meth high is over, emotional issues start to show themselves due to fatigue and incapacity to regain a methamphetamine high. People using meth often explain the period after meth high as a sense of emptiness, loss, and cravings for the drug. This period after the meth high is risky for the user and others around them due to their hostility toward harming themselves. This stage of post-meth high is commonly called “tweaking.”

When addicted to meth, users repeat the meth rush and high cycles for days to extend the ecstasy from a methamphetamine high. In other words, they attempt to make the meth high last as long as possible. This helps avoid negative withdrawal discomfort. While using and getting high, meth addicts may hardly eat or sleep. The body wastes physically and mentally, leading to the next stage of a meth high called the shutdown or tweaking stage.

Meth high duration depends on a number of factors.

How long a meth high lasts can range widely. It varies from person to person and for each meth high experience. Factors that impact how long does meth high last include:

  • Dosage.
  • Potency.
  • Route of administration.
  • Tolerance of the user.
  • Polysubstance use.
  • User’s medical history.
  • The body’s ability to metabolize methamphetamine.
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What’s The Difference Between Meth and Crystal Meth?

The terms meth and crystal meth are often used interchangeably, but there are differences between these two forms of methamphetamine related to their form and potency, impacting their detectability and determining how long does methamphetamine stay in your system. 

Meth is classified as a Schedule II substance. While limited pharmaceutical drugs are sold, much of methamphetamine is illegally made and used recreationally to get high. It is frequently abused and sold on the street under many nicknames because of its highly addictive quality. Meth can be smoked, snorted, injected, or taken orally, and it is often used with other substances. 

Crystal meth refers to the drug in a purer, more potent, and more concentrated form. It has a crystalline structure and is typically traded this way to prove that it is in its purest form. However, you can get the same substance in powder, putty, or tablet form. The effects are the same, although more robust. Hazardous effects can be worse if you mix crystal meth and alcohol.

Knowing these differences, we can expect different answers to the question of how long does methamphetamine stay in your system, depending on meth´s form. Crystal meth can stay in the system longer than a weaker form of the same drug.

White powder
The differences between meth and crystal meth impact how long does meth stay in your system.

How Long Crystal Meth Stays in Your System?

The metabolism of meth is more rapid in some people than in others. How long does meth stay in your body can change depending on the dose taken, the person’s physical characteristics, and the frequency of use. The euphoric effects of crystal meth high can last between 8 and 24 hours. Traces of meth in an individual’s system can be found even months later. Crystal meth can be detected for up to 72 hours in urine (longer for chronic users) and 90 days in hair.

What Factors Affect How Long Crystal Meth Stays in Your System?

There are quite a few factors affecting how long does methamphetamine stay in your system when taken in the form of crystal meth. These are the most important ones:

  • Metabolic rate. Metabolic rate is the number of calories needed to keep the body functioning at rest. You’ll process drugs much more quickly if you have a high metabolic rate. Factors such as age, gender, activity level, and health will also play significant roles in determining your metabolic rate. An 18–25-year-old man will most likely metabolize meth much more quickly than nearly any other demographic.
  • Body fat. Lipids usually retain substances and store them. This could mean people with more body fat will retain meth much longer. This, along with naturally slower metabolisms, is why most women typically show up positive on drug tests for longer than men.
  • Overall health. The liver and kidneys’ health will affect how long crystal meth stays in your system. Your overall health, infections, food, and other factors are all relevant to this.
  • The rate of use. The more a person uses meth, the harder it is for the body to metabolize it. The body will experience what is called “system saturation.” It means the body will retain the meth for a longer period of time. Frequent, heavy, and long-term abuse means meth will stay in the system longer. 
  • The method of use. Injecting crystal meth means it will stay in your system longer than someone smoking or using it orally. This isn’t true with prescription amphetamines designed for slow release with oral tablets but it is true with crystal meth.

Meth and Pregnancy

The question of how long does meth stay in your system is especially important for mothers-to-be, as meth can be detected in both the mother and the fetus, showing that meth has its effect even on a yet-to-be-born baby. Using meth during pregnancy can lead to severe complications, such as premature birth, low birth weight, and, most importantly, developmental issues. 

Furthermore, mothers who stop meth use during pregnancy only to continue it after the baby is born need to understand how long does meth stay in your breast milk and what the negative implications of it are. Meth can be passed to a baby through breast milk, posing significant risks for its health. 

Keeping in mind the severity of consequences for the fetus or the infant, women should seek immediate medical help if they are meth users rather than be occupied with the question of how long does methamphetamine stay in your system and hoping that the answer will protect their (future) child. 

Pregnancy control with a medic.
How long does meth stay in your body? This is particularly important for pregnant women.

Overcoming Meth Addiction

Meth users struggle to give up on their own and must seek professional meth addiction help to stop permanently. Continued abuse can lead to serious health problems and a drastic decline in physical condition. If you ask yourself how long does meth stay in your system, you’re either concerned about having too many drugs in your system or worried that you will test positive for the drug. 

The only sure way to test negative for meth use is to quit meth consumption. Quitting on your own can be dangerous and withdrawal symptoms can be very uncomfortable. Heavy meth users need to detox from the drug under the guidance of a medical professional who can safely supervise them through withdrawal and treatment.

We Level Up New Jersey meth treatment center offers a combination of treatment therapies tailored to your needs and circumstances to support you in getting off meth and starting your recovery. Our medical meth detox in New Jersey includes 24/7 care and support by medical staff that monitor meth withdrawal and manage symptoms to ensure a safe and effective body cleansing from the drug. 

Our team at We Level Up Lawrenceville NJ specializes in creating an ideal environment and providing effective therapies to help individuals who struggle with meth and crystal meth abuse. We will develop a personalized treatment plan and lead you to recovery.

Meth Detox and Withdrawal

An important aspect of meth addiction treatment is the detox phase, during which one stops using meth. Withdrawal symptoms from meth will appear, especially in strong, long-term users. This drug’s withdrawal symptoms are unpleasant and accompanied by intense cravings. Symptoms of methamphetamine withdrawal may include:

  • Increased appetite
  • Nervousness and sadness
  • Lack of pleasure (anhedonia)
  • Anger and violence
  • Irritability
  • Fatigue
  • Lethargy
  • Muscle tremors
  • Sweating
  • Headaches
  • Fever
  • Dizziness
  • Inability to pay attention
  • Paranoia
  • Delusions
  • Psychosis
  • Suicidal thoughts

Despite not being immediately fatal (like the withdrawal symptoms from opioids, alcohol, or benzodiazepines), the psychological repercussions of meth withdrawal can cause users to injure themselves or others. It is strongly advised against attempting “cold turkey” methamphetamine withdrawal management without a doctor’s supervision. Specialists in charge of your detox and recovery can help you manage withdrawal symptoms and make the whole experience less unpleasant.

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How long does methamphetamine stay in your system? Each individual is different; therefore, there is no set time for how long meth stays in your system. Various factors contribute to and can affect this number.

If you are worried about how long does meth stay in your body, you are probably aware of the negative meth effect and considering getting professional help. We Level Up Lawrenceville NJ can help you by treating your mental health and substance abuse disorder. This is a life-changing journey we can support with tailored treatments and genuine care. Call us to get the treatment you deserve.

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Sources:

National Institute on Drug Abuse (2019). What is the scope of methamphetamine use in the United States? [online] National Institute on Drug Abuse. Available at: https://nida.nih.gov/publications/research-reports/methamphetamine/what-scope-methamphetamine-misuse-in-united-states.

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Sources

[1] CDC – https://www.cdc.gov/mmwr/volumes/69/wr/mm6912a1.htm for How Long Does Meth Stay in Your System?

[2] We Level UpRehab » Meth Addiction Treatment and How Long Does Meth Stay in Your System

Substance Abuse and Mental health Services Administration. (2019). Key substance use and mental health indicators in the United States: results from the 2018 national survey on drug use and health. Rockville, MD: Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration. Facts on How Long Does Meth Stay in Your System. How Long Does Meth Stay in Your System review.

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American Society of Addiction Medicine. (2019). The ASAM principles of addiction medicine, sixth edition. Philadelphia, PA: Welters Kluwer. How Long Does Meth Stay in Your System Factoids.

Substance Abuse and Mental Health Services Administration (SAMHSA). “Protracted Withdrawal.” Substance Abuse Treatment Advisory: News for the Treatment Field. July 2010. How Long Does Meth Stay in Your System withdrawal signs.

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Tips for Teens: Methamphetamine | Substance Abuse and Mental Health Services Administration (SAMHSA) (PDF | 253 KB) How Long Does Meth Stay in Your System for teen drug abuse.

National Survey on Drug Use and Health | SAMHSA How Long Does Meth Stay in Your System statistics.

Counselor’s Family Education: Manual Matrix Intensive Outpatient Treatment for People with Stimulant Use Disorders | SAMHSA (PDF | 1.1 MB) Outpatient How Long Does Meth Stay in Your System information.

Methamphetamine | National Institute on Drug Abuse (NIDA) How Long Does Meth Stay in Your System by NIDA.

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