Flush Free Niacin For Drug Test


Niacin is the Vitamin B3 that helps convert carbohydrates into energy. Flush Free niacin powder is designed to help you pass any drug test, because it contains an effective but natural amount of Niacin, which does not cause a skin flushing response.

Flush Free Niacin For Drug Test

You may need to take a drug test for employment purposes, legal reasons, for a sports doping test, or otherwise.  Niacin is one choice you may see mentioned online or by an old-timer as a way to pass a drug test.  This is an effort not quite stealthy enough for modern drug tests but may offer some benefits healthwise and in actually burning fat to actually release THC from fat cells rather than just to mask drug use.  Those who smoke more often, have a higher body mass and whose body detoxes less effectively will need a stronger product and vice versa.  You should be aware that in some U.S. states it is illegal to detox in an attempt to pass a drug test.

What are niacin pills?

Niacin is a B-vitamin, namely, vitamin B3.  It may be called nicotinic acid.  It is critical to many functions of cellular metabolism in humans.  It can be synthesized from pyridine.  Supplementation can be used to prevent a condition called Pellagra, caused by niacin deficiency and featuring neurological, skin, and digestive anomalies.  On a fundamental level, the purpose of B3 is to perform maintenance of NAD and NADP, which are non-protein chemical compounds that are important for metabolism and anabolic reactions respectively. Vitamin B3 is important for oxidative deamination, meaning a form of deamination which produces oxidized products in the liver. Finally, it can also help with coenzyme in lipid catabolism. Lower, you can see Toxin Rid and Urinator, top solutions .

Niacin supplements generally come in the form of pills.  The RDA for niacin is 14 mg to 16 mg per day.  Pills generally provide 500 mg per pill.  These pills are used in the treatment of hyperlipidemia (high cholesterol and other fats) and the prevention or reversal of symptoms of Pellagra (vitamin B3 deficiency, uncommon in present-day developed nations).   Avoid flush-free niacin, these pills are inert and ineffective.

For passing lab testing it is safe to use niacin in most cases, so long as you do not go beyond the safe dosage level.  Niacin can be used for daily supplementation at doses of 14 mg to 50 mg.  You should avoid any detox effort to beat a drug test if you’re under 18 or pregnant.  As for possible side-effects, we’ll get into that in the next section.  If you have diabetes, you should think twice about using niacin, especially for detox when there are many other methods and substances you could use.  To treat hyperlipidemia or improve cardiovascular outcomes, niacin may be prescribed in doses from 50 mg to 3000 mg per day.  To treat pellagra, doses of 300 mg to 1000 mg may be prescribed by a doctor.  For metabolic syndrome, people take up to 2 grams of niacin.

People attempting to detox for a drug test take the dose for metabolic syndrome which is 500mg to 2 grams. This dose will help you burn fat leading up to the test.  Fat burning releases THC from fat cells so that it can be flushed from the body.  On the day of the test, a dose of niacin can be used to help the urine retain a yellow color if your pee has been diluted, but too much niacin will increase fat burning which should be avoided on the day of the test.

Niacin is fairly safe except if used in doses greater than 2 grams per day for the average American male. Pregnant or nursing women should consult their doctor before using high dosages of a niacin supplement.

Negative Side Effects of Niacin Pills

The most commonly reported adverse side effect of niacin use is flushing.  This can range from mild discomfort to feeling like a panic attack, strong fear, or pain.  It is not generally believed to be dangerous but could indicate that a dose of niacin which could affect other parts of the body may have been ingested.  Aside from facial flushing which may last up to half an hour after a 500mg niacin pill, there is also a risk of liver damage and indigestion.  Using niacin for a weed detox can be especially dangerous if proper care is not taken.  With a high dose, particularly of sustained-release types over extended time periods, hepatotoxicity can result.  It’s important that you use B3 cautiously and reasonably.  There is also a risk of niacin toxicity if you were to consume more than the safe dosage mentioned in the previous section.  Symptoms of a niacin overdose include but are not limited to a rapid heartbeat, itching, nausea and vomiting, diarrhea, and abdominal pain.  If you experience any negative side effects of niacin pills, stop taking them immediately (if not prescribed) and go see your local practitioner.

If you use niacin in an effort to beat a drug test on a regular basis, particularly daily, it may cause an increase in blood sugar which could either cause or worsen diabetes.  If you have diabetes, you need to be even more careful taking this supplement.  You may wish to decide against taking it at all in that case and consider another way of detoxing that is safer for you.  Sustained release and high doses of niacin can also result in blood thinning and visual issues.  Thankfully most side-effects of niacin can be reversed relatively quickly once you stop taking the pills.

How to Use Niacin to Pass a Drug Test

Your body’s fat cells can store THC and other drug metabolites.  When your body detoxes, these metabolites are gradually released from your body through various forms of excretion such as sweating and urination.  Niacin is known to speed the breakdown of fat which in turn helps to release THC and other drug metabolites.  Niacin can open blood vessels in fat tissues to help cleanse your system of drugs.  When it comes to using niacin ahead of a drug test, do not take more than the safe amount, that being 2 grams a day.

Here are the directions involved in using niacin:

  1. Abstain from drug use for 3-4 days.
  2. In the morning, take 500mg of niacin with two glasses of water.  This dosage can cause flushing unless you take no-flush niacin.
  3. Stay away from fatty foods and pee frequently.
  4. Every six hours take 500mg of niacin.  Do not consume higher doses and do not take them more frequently.  The point of spacing out each pill is to prevent any risk of niacin toxicity.
  5. Consume a safe and appropriate amount of water with electrolytes.  Avoid drinking too much water as you could run the risk of water intoxication.
  6. On the day of the test, consume two pills with six hours between each one.  You may need to get up pretty early, in this case, depending on when your test is due to take place!
  7. Pop back a B12 supplement if your urine is coming out too clear.  Make sure that your urine is yellow and natural-looking before taking the test.
  8. Take a small dose of creatine too.  This will ensure that your creatinine levels are right prior to your drug test.

Those who’ve used the niacin flush method to get drugs out of their system claim that it works.  As a warning, doses of niacin of 2 grams or more for extended time periods can be toxic to the liver and will cause flushing as well as possibly other uncomfortable side-effects.  It may even land you in the hospital.

There was a case study published in 2018 which highlighted an incident of niacin toxicity involving an individual who was trying to beat a drug test (Fayyaz, Rehman, & Upreti, 2018).  The user spent time in the hospital with vomiting, nausea, and hypoglycemia with possible liver issues although no liver failure.  The user’s recovery took about three days.  Tests for drug use were negative despite the user having smoked weed recently and on a daily basis.  This suggests that niacin can work but it goes without saying that you should never consume too much niacin.  The point is that this terrible incident proves that niacin can help to get weed and other drugs out of your system but that taking too much of it will go beyond those benefits and cause real harm!  So take a safe dose and there’s a good chance that you’ll achieve something.  Do not be tempted to take more.  You’ll probably end up in a bad situation if you do.

While Niacin, a type of B3 has traditionally been used to treat medical conditions like hyperlipidemia and a B3 deficiency, in recent years, it has been popularized within the drug detox community.  It is considered by many as a fast and effective way to clear drugs from the body so as to conceal drug use before a test.  Niacin is easy to find near me and you at grocery stores, drug stores, and online.

How Long Until Niacin Leaves My System?

It’ll probably take just four hours for niacin to leave your body.  Niacin metabolites could possibly take a day or two to leave your system fully if present in high concentrations.  Obviously, you’re gonna have small trace quantities of niacin in everyday foods.  You may be wondering whether testers who are aware of the niacin flush approach may look for signs of niacin use.  The thing is, it’s very unlikely that they could tell if you’ve used this method.  After all, since B3 is in ordinary foods and many people take vitamin supplements, trace evidence of niacin won’t raise any eyebrows.  With that said, the test will be occurring when the niacin is still flushing THC out of fat cells so there could be high niacin levels in your bloodstream.  We do not know if test-makers plan to specifically test for niacin but since it’s an essential nutrient and a common supplement and medication, we can’t imagine that they’ll be able to tell that you were using it in a detox effort.  Not yet anyway! One way or another, high concentrations of niacin will be out of your system within 48 hours.

Niacin Flush Detox Method

Niacin Flush Detox
With drug testing beginning to rise in popularity as a workplace standard, people are starting to look for more and more efficient ways to quickly cleanse their bodies of substances that could make them test positive. Taking niacin has long been a known detox method, but its effectiveness has always been a topic of debate.

What Niacin Is

Niacin, otherwise known as Vitamin Bis compound naturally found in a human body that serves the purpose of metabolizing carbohydrates. When it comes to niacin for drug testing, it is usually talked about niacin pills that can be bought in pretty much any pharmacy.
Niacin pills are usually used as a dietary supplement for people who are suffering from high cholesterol levels or low niacin levels, but it is also often used to increase the health of skin, hair and eyes. A niacin pill has around 500mg of niacin in it and the recommended daily dose is up to 2000mg, to prevent the occurrence of negative side effects.

Negative Side Effects of Niacin Pills

  • Skin flushing
  • Burning sensation
  • Swelling
  • Reddening of skin
  • Skin lesions or hives
  • Diarrhea

Niacin Flush

Niacin flush is a method that has been argued to allow a person to successfully clear out traces of metabolites from their body in a shorter amount of time than usual. This is done by increasing the rate at which body breaks down fats, which is where metabolites usually tend to deposit, which in turn allows the person to pass the drug test even though just a short period of time has passed since their last drug use.

The problem with this method is that niacin pills have varying levels of effectiveness from person to person, depending on their height and weight, as well as their metabolism rate. People with higher than average body fat content have reported this method to fail more often than people with lower body fat content.

Another thing to note about this method is that it is not a miracle solution like some people claim and that it has to be done over a period of time, preferably 2 – 5 days for maximum efficiency. This is due to the fact that niacin is very hard on one’s liver and taking large amounts of it (more than 500mg) at once poses a serious health risk.

Our team does not encourage to use any of the methods for speeding drug cleaning, especially if it is performed for faking or cheating drug screening results.

If Taking Niacin Pills

  • Always space them out at least 5 hours to prevent overdosing.
  • Drink a lot of water, preferably two full glasses with every pill. Also drink as much water, fruit juice, sports drinks or caffeinated drinks during the day, but be careful not to overhydrate oneself.
  • Abstain from drugs and alcohol, to prevent negating the effect of niacin pills.
  • Eat light meals and stay away from fatty foods.

Does Niacin Flush Work?

Despite the fact that many people claim that this method does not work, it usually stems from the fact that the amount of time that the pills were taken for was not sufficient. Taking a large dose of niacin pills in a short period of time, just before a drug test, often cause serious health problems then help pass said test. Only by giving it time will this method have the expected effect without the negative consequences.

Is Niacin Flush Harmful?

Niacin flush is a common side effect of taking high doses of supplemental niacin, which can be prescribed to treat cholesterol problems.

The good news is that you can reduce your likelihood of getting niacin flush.

This article describes what you need to know about niacin flush, including:

  • what it is
  • what causes it
  • what you can do about it

What is niacin flush?

Niacin flush is a common side effect of taking high doses of niacin supplements. It’s uncomfortable, but it’s harmless.

As a supplement, niacin is primarily used to treat high cholesterol levels. Nicotinic acid is the supplement form people usually use for this purpose.

There are two main forms of nicotinic acid supplements:

  • immediate release, where the whole dose is absorbed at once
  • extended release, which has a special coating that makes it dissolve more slowly


Niacin flush is a common reaction to high doses of niacin. It happens when capillaries expand, increasing blood flow to the skin’s surface.

Symptoms of niacin flush

When niacin flush occurs, symptoms typically set in about 15–30 minutes after taking the supplement and taper off after about an hour.


Niacin flush can appear and feel much like a sunburn. However, symptoms typically go away after an hour. People usually develop a tolerance to the supplements over time.

Why people take large doses of niacin

Taking high doses of niacin has been shown to produce the following improvements in blood cholesterol and lipids:

Niacin treatment isn’t typically the first line of defense against cholesterol problems, since it can cause side effects other than flush.

Niacin supplements should be treated like a drug and only taken under medical supervision, since they can have side effects.


High doses of niacin are typically used to improve cholesterol and triglyceride counts. They should only be taken under medical supervision, since they carry a risk of side effects.

Is it dangerous?

Niacin flush is harmless.

You also shouldn’t take high doses if you’re pregnant since it’s considered a category C drug, meaning at high doses, it could cause birth defects.

Interestingly, although the flush isn’t harmful, people often cite it as the reason they want to discontinue their treatment .

And that in itself can be a problem, since if you don’t take niacin as it’s prescribed, it’s not at all effective at preventing heart disease.

According to reports, 5–20% of people who have been prescribed niacin stop using it because of flush .

If you’re experiencing niacin flush, or are concerned about it as a possible side effect of these supplements, tell your healthcare provider. They can help you figure out how to reduce the chances of flush or discuss alternative treatments.

Also, because there are other, more harmful side effects associated with taking these supplements, do not try self-medicating with niacin.


Niacin flush is harmless. However, the supplements can have other harmful side effects, and certain people should not take them.

How to prevent niacin flush

Here are the main strategies people use to prevent niacin flush:

  • Try a different formula. Roughly 50% of people taking immediate-release niacin experience flushing, but extended-release niacin is less likely to cause it. And even when it does, symptoms are less severe and don’t last as long (1, 4, 11). However, extended-release forms may carry a greater risk of liver damage.
  • Take aspirin. Taking 325 mg of aspirin 30 minutes before the niacin can help reduce the risk of flush. Antihistamines and nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, can also minimize the risk.
  • Ease into it. Some experts recommend starting with a smaller dose like 500 mg and then increasing to 1,000 mg gradually over the course of 2 months, before finally increasing to 2,000 mg. This strategy could bypass flush entirely .
  • Have a snack. Try taking niacin with meals or with a low-fat evening snack .
  • Eat an apple. Some early research suggests that eating an apple or applesauce prior to taking niacin may have a similar effect to aspirin. Pectin in apple seems to be responsible for the protective effect .


Taking aspirin, eating a snack, slowly increasing the dosage, or switching formulas may help you prevent niacin flush.

Differences between forms of niacin

As mentioned above, to avoid unwanted symptoms, including flushing, some people opt for extended-release or long-acting niacin.

However, extended-release and long-acting niacin differ from immediate-release niacin and may cause different health effects.

Long-acting niacin is associated with significantly reduced flushing, as it’s absorbed over a long time period that typically exceeds 12 hours. Because of this, taking long-acting niacin significantly reduced the chances of flushing.

However, because of the way the body breaks it down, taking long-acting niacin may have toxic effects on the liver, dependent on the dose taken.

Although uncommon, switching from an immediate-release niacin to a long-acting niacin or significantly increasing your dose can result in serious liver damage.

What’s more, niacin absorbability depends on the niacin supplement that you take.

For example, the body absorbs nearly 100% of nicotinic acid, which raises niacin blood levels to an optimal range in about 30 minutes.

In contrast, inositol hexanicotinate (IHN), a “no-flush” niacin, isn’t absorbed as well as nicotinic aid.

Its absorption rate varies widely, with an average of 70% being absorbed into the bloodstream.

Plus, IHN is significantly less effective than nicotinic acid at increasing serum niacin. IHN usually takes between 6-12 hours to raise blood levels of niacin to near the optimal range.

Some studies suggest that peak niacin blood levels can be over 100 times greater when supplementing with nicotinic acid compared to supplementing with IHN.

Research also shows that IHN has minimal effect on blood lipid levels .

Because absorbability can significantly vary depending on the form of niacin used, it’s a good idea to ask your healthcare provider what form would be best for your specific health needs.


Absorbability differs between forms of niacin. Some types of niacin are more effective at raising blood levels than others.

The bottom line

Niacin flush can be an alarming and uncomfortable experience.

However, it’s actually a harmless side effect of high-dose niacin therapy. What’s more, it may be preventable.

That said, large doses of niacin can have other, more harmful side effects.

If you want to take high doses of niacin for health reasons, make sure to do so under medical supervision.

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