How long will nicotine stay in your body?
How long will nicotine stay in your body?

How long will nicotine stay in your body?


When you are using tobacco based products, nicotine will stay in your body for a while. Medical tests can detect the nicotine contain level in urine, blood, saliva, hair, and nails.

Nicotine is the addictive substance in tobacco, cigarette, and e-cigarette.

After smoking/vaping, 90% of the nicotine would be absorbed by the inhaler, and it will stay in for a very long time even the addictive effect wears off.

In this article, we will talk about how long will it take for nicotine to completely dies in your body, and see if there are probability to exceed the process.

How Long will nicotine stay in your body?

The half-life of nicotine is 2 hours, which means after in taking nicotine, in 2 hours, there will be only half of it left inside your body.

The short half-life period determines the nicotine effect wear off sooner than expected, therefore, people will have to intake again.

When nicotine is absorbed in your body, it will be resolved into more than 20 different materials, such as cotinine, neonicotine, and nornicotine. It will all be released from urine eventually.

Doctors can run tests to measure the content level of nicotine from: urine, blood, saliva, hair, and nails.

According to the American Association for Clinical Chemistry(AACC), it takes over 2 weeks to drop the content level of cotinine to the same level as non-smokers, and nicotine in urine takes weeks to its lowest level. The more you smoke, the longer it takes for nicotine to leave.

Clear time varies from people to people,

u  Nicotine might stay inside your body if you’re over 65-year-old

u  It is easier for women to digest nicotine than male, especially when they are taking contraceptives

u  Heavy smokers takes much longer to completely clear the nicotine


How long will nicotine withdrawal lasts?

The severity and timetable of withdrawal symptoms mainly depends on the smoking frequency.

From a thesis in 2010, there might not be withdrawal symptoms for people who smoke 5 and less cigarettes per day, because they don’t have a reliance on nicotine. However, they still have a emotion reliance to smoking.

Physical and psychological effects of withdrawal: dysphoria, irritable, dyscoimesis, agitation, inattentive, and anorexia.

Once the symptoms disappear, and nicotine is completely clear from body, smokers might have a desire to smoke, which is because they are habited to smoking.

Under certain circumstances, the crave for nicotine might be aggravated, such as, too much stress and drinking with buddies, etc. As time goes on, the contributory factors will be less and less influential.


Can you clear the nicotine in your body by yourself?

The best way to pass a nicotine test is to stopping taking 10 days ahead, due to the cotinine can stay in blood for 10 days more.

There is no certain way to exceed the process of clearing nicotine in body, but one can keep an healthy life to perform the best support for your body system.

 The following methods might be effective: drink more water, work out, and healthy food. There are some commercial products claims that it can help clearing nicotine, but obviously without a solid scientific base.



u  The speed of nicotine clears off is affected by following factors:

u  How many and how often one in taking nicotine;

u  How long have one have been using tobacco products;

u  The health status and age;


For now, it’s not sure if there is someone can complete the process faster than non-smokers. Quitting nicotine is difficult, but worth trying. According to the American Lung Association, there were 52,800,000 ex-smoker quitted smoking. In short, there are more and more people living nicotine-free life.