Piperine dosage


David Tomen
David Tomen
10 minute read
Piperine has been shown to amplify the effects of nootropics, decrease anxiety, improve mood and boost memory

Piperine is an alkaloid extracted from Black Pepper (Piper Nigrum). And used to increase the bioavailability and metabolism of nootropic supplements and drugs.

Piperine was discovered in 1819 by Hans Christian Ørsted who isolated it from Piper Nigrum. This is the same Danish chemist who figured out that electric currents create magnetic fields.[i]piperine-boosts-nootropic-effectiveness

Piperine makes nootropics and pharmaceuticals more bioavailable by inhibiting the drug transporter P-glycoprotein, and the major drug-metabolizing enzyme CYP3A4 active primarily in your liver.[ii]

Piperine does more than just boost the action of your nootropic stack. It acts as a nootropic as well. In this article we investigate how Piperine can help optimize your brain.

Piperine helps:

  • Nootropic Effectiveness. Piperine inhibits the drug transporter P-glycoprotein, and the drug-metabolizing enzyme CYP3A4 in your liver. Allowing more of each nootropic in your stack to be absorbed and used as intended.
  • Neurotransmitters. Piperine is a powerful monoamine oxidase (MAO) inhibitor (MAOI). Boosting serotonin, dopamine and norepinephrine levels in the brain. Decreasing anxiety, improving mood and memory.
  • Neuroprotection. Piperine has potent antioxidant, anti-inflammatory, and anti-tumor capabilities. Helping to reduce toxic free radicals and protecting your brain from oxidative damage.


Piperine is an alkaloid extracted from Piper Nigrum (Black Pepper). And used to boost the effectiveness of other nootropics and drugs.


Black Pepper (Piper Nigrum) is a flowering vine native to south India. Its dried fruit is used world-wide as a spice and seasoning.

Research has found Piperine can protect against oxidative damage by inhibiting free radicals and reactive oxygen species. Piperine protects against oxidative stress. And has been found to have anti-mutagenic and anti-tumor capabilities.[iii]

But Piperine’s biggest claim to fame is its ability to boost the effectiveness of your nootropic stack.

Piperine’s effects are similar to grapefruit juice and St. John’s wort. It inhibits the drug transporter P-glycoprotein, and the major drug-metabolizing enzyme CYP3A4. Amplifying the effect of nootropics by preventing elimination in your liver and urine. And allowing increased absorption for use by your body and brain.


How does Piperine work in the Brain?

Piperine boosts brain health and function in several ways. But two in particular stand out.

  1. Piperine is an anti-depressant. Piperine is a monoamine oxidase (MAO) inhibitor (MAOI). Piperine inhibits both MAO-A and MAO-B. Research has found that Piperine is as effective as the popular pharmaceutical antidepressant Prozac® (fluoxetine).[iv]

Piperine has a profound effect on serotonin in the brain. Piperine has been shown in the lab to provide a substantial increase in serotonin (5-HT) in both the hippocampus and frontal cortex.[v]

And this is where it gets very interesting. Scientists found that combining Piperine with Resveratrol provided significant antidepressant action. But this stack also offered relief from oxidative stress, inflammation and provided neuroprotection.[vi]

Resveratrol on its own is a good antidepressant. And Piperine also provides antidepressant action as a MAO Inhibitor and serotonin booster. When combined, Piperine also boosts the bioavailability of Resveratrol. This combination is a potent natural antidepressant. Without the side effects that come with prescription MAOI’s and SSRI’s.

  1. Piperine boosts bioavailability. Piperine inhibits the drug transporter P-glycoprotein, and the major drug-metabolizing enzyme CYP3A4. This can have profound implications on how well and how much of each nootropic in your stack actually gets to your brain.

Your liver protects you by attaching a glucuronide molecule to nootropics (and drugs) which sends a signal for them to be excreted in your urine. This process prevents excessive levels of nootropic supplements (and drugs) in your body. But it can also work against your brain optimization goals.

A great example is curcumin, the bioactive compound found in turmeric. You will not experience the medicinal properties of curcumin when taken on its own. Curcumin has very poor bioavailability when taken as a supplement because of its rapid metabolism in your liver and intestinal wall.

Researchers in India gave mice 2 grams/kilogram of curcumin and tested blood levels over 4 hours. Very small amounts of curcumin were detected in blood in the first 2 hours.

The scientists then administered the same amount of curcumin combined with 20 mg/k of Piperine. Blood levels of curcumin were detected sooner with Piperine added. And stayed in the blood longer. Bioavailability of curcumin in mice increased by 154% when combined with Piperine.

The researchers then tried the experiment with humans. A 2-gram dose of curcumin on its own was not detectable in blood samples. But curcumin combined with Piperine in humans made a profound difference.

2-grams of curcumin combined with 20 mg of Piperine in humans showed up in blood samples within 15 minutes. And Piperine increased the bioavailability of curcumin by 2000%.[vii]

How things go bad

The job of our liver is to clear our body of unwanted compounds and toxins. And excrete them as waste through our urine. But some of the nootropics and especially prescription drugs are seen as “foreign matter” by our liver. And are eliminated as ‘waste’ even if our intention was to benefit our body and brain.piperine-anti-anxiety

To make matters even worse, include getting older. Our brain chemistry and energy metabolism changes.

Serotonin, dopamine and norepinephrine levels decline

Recall, reaction time and mood diminish

↓ Toxins, oxidation and free radicals damage neurons

↓ Brain cell membranes degenerate

↓ Bioavailability of nootropics and supplements decline

All of these changes can happen at any age. And some are contributing factors to the neurodegenerative diseases of aging, including Alzheimer’s and dementia.

This is where Piperine can help.

Piperine to the rescue

Research from hundreds of studies have shown that Piperine will:

  • Boost the bioavailability of nootropics
  • Increase the effectiveness of nootropics
  • Work as an antidepressant
  • Relieve oxidative stress
  • Prevent inflammation
  • Provide neuroprotection
  • Protect against tumors and cancers


How does Piperine feel?

Piperine on its own has antidepressant capabilities. So you may feel your mood improve.

If you are using curcumin or turmeric for its anti-inflammatory benefit, you’ll likely find that these supplements will be much more effective in relieving pain by adding Piperine.

You should notice a substantial benefit in the effectiveness of most nootropics and prescriptions meds when stacked with Piperine.

Some neurohackers report a reduction in anxiety (that can be caused by some supplements) by taking it with Piperine.

If you are dealing with arthritis you may find pain levels will decrease by using Piperine. This nootropic is a potent anti-inflammatory even on its own.

You may be able to reduce the amount of some nootropics and medications by stacking them with Piperine. Because the effectiveness of most of these supplements and meds will get a boost by combining them with Piperine.


The Research

Piperine Potentiates the Effects of Curcumin

Stress in everyday life puts every one of us in danger of developing some type of cognitive disorder. And curcumin is a proven therapy to help protect us from this assault on our cognition and brain health.

To help illustrate what happens in our brain when under stress, scientists subjected male Laca mice to stress-induced cognitive impairment for 28 days.

Chronic stress impaired memory, locomotor activity, elevated toxins like nitrate, decreased the master antioxidant glutathione, damaged mitochondria enzyme function, reduced acetylcholine levels, and increased stress cortisol levels.

Researchers then treated the mice with either 200 or 400 mg/k per day of curcumin. All of the damage caused by stress was reversed to a certain extent.

Then the team added 20 mg/k of Piperine to a reduced daily curcumin (100 or 200 mg/k) supplement. The results clearly demonstrated that Piperine enhanced the bioavailability of the curcumin. And greatly potentiated the effects against stress-induced cognitive impairment.[viii]

Piperine as an Antidepressant

Researchers injected mice with 60 mg/k of Piperine. An hour after the injection, the team measured serotonin, dopamine and norepinephrine levels. Serotonin levels were significantly higher in the cerebral cortex of the mice. Dopamine levels were markedly higher in the hippocampus, midbrain and cerebellum. And norepinephrine levels were lower in every part of the brain.[ix]

Scientists in Korea analyzed Piperine (ethanol extract) for its monoamine oxidase (MAO) inhibitor capabilities. Piperine showed an inhibitory effect against MAO-A and MAO-B.

The team found that Piperine exhibited the same type of antidepressant effect in the brain as the popular prescription drug Prozac® (fluoxetine).

The researchers concluded that Piperine possesses potent anti-depressant properties. And Piperine is a promising pharmacotherapeutic candidate as an antidepressant agent.[x]

Piperine Protects Against Alzheimer’s

A study conducted in Thailand looked at Piperine’s effect on memory and neurodegeneration in an animal model of Alzheimer’s Disease.

Adult male Wistar rats were given Piperine at doses ranging from 5, 10 and 20 mg/k of body weight for 2 weeks before and 1 week after artificially induced Alzheimer’s-like conditions in the rat’s brain.

The results showed that Piperine at all dosage ranges significantly improved memory impairment and neurodegeneration in the hippocampus.

The scientists speculated the mechanism of action for Piperine to produce these effects could be a decrease in lipid peroxidation and the acetylcholinesterase enzyme. (This enzyme degrades acetylcholine synthesis in the brain). Piperine also demonstrated a neurotrophic effect in the hippocampus.[xi]

Dosage NotesPiperine dosage

The recommended dosage of Piperine to enhance bioavailability of nootropic supplements is 5 – 20 mg per day.

Many nootropic stacks and some supplement formulas (i.e. curcumin, turmeric and resveratrol) come pre-stacked with the appropriate dose of Piperine.

For example, Performance Lab® Energy uses the patented BioPerine® form of Piperine in their premium energy stack.

I love this energy stack and use it twice a day instead of the morning and noon doses of ALCAR I used in the past.

This pre-formulated nootropic stack also includes the patented forms of MicroActive® Q10, BioPQQ®, and Bio-enhanced® Na-RALA (alpha lipoic acid).

You can see my full review here of how I use the Performance Lab Energy stack in treating Adult ADD.

Side Effects

Piperine is an extract of Black Pepper and considered non-toxic and safe to use at recommended doses.

Piperine potentiates the effect of nearly all nootropic supplements and prescription medications. So be very aware that boosting the effects of certain supplements or drugs could produce unwanted consequences.

Be cautious of using Piperine in addition to Piperine that may already be in one or more of your supplements. Too much Piperine will not only amplify most of the supplements and drugs you’re taking. But could also negate the effects of some.

Available Forms

BioPerine® is a patented form of Piperine made by Sabinsa Corporation. And licensed to other supplement manufacturers to include in their formulas, or as a standalone product. It’s the only source I’m aware of who have clinical studies to back up their claims of safety and efficacy.

You can also get Piperine by grinding black peppercorns on your food. The problem is there is no way to measure how much Piperine you’re actually using.

Nootropics Expert Recommendation

Piperine up to 20 mg per day

Nootropics Expert Tested and ApprovedWe recommend using Piperine as a nootropic supplement.

Your body does not make Piperine on its own. So you must take it as a supplement.

Piperine is especially helpful for boosting the bioavailability of other nootropics in your stack.

Beware that Piperine also amplifies the potency of other supplements and meds you are taking. Boosting the effect of certain SSRI’s and some other meds could be extremely dangerous.

Piperine is also an effective antidepressant, and can help lower stress and anxiety. Piperine is a potent anti-inflammatory and could help reduce pain if you are dealing with arthritis. Or other conditions caused by excess inflammation in your body.

Piperine is a powerful neuroprotectant and makes a great addition to any nootropic stack.

You can buy Piperine or BioPerine® as an individual supplement. And some premium pre-formulated nootropic stacks like Performance Lab® Energy include BioPerine.

As an Amazon Associate I earn from qualifying purchases. This post may also contain other affiliate links and I will be compensated if you make a purchase after clicking on my links.

[i] Oersted, “Über das Piperin, ein neues Pflanzenalkaloid” [On piperine, a new plant alkaloid], (Schweigger’s) Journal für Chemie und Physik, vol. 29, no. 1, pages 80-82 (1820). (source)

[ii] Bhardwaj R.K., Glaeser H., Becquemont L., Klotz U., Gupta S.K., Fromm M.F. “Piperine, a major constituent of black pepper, inhibits human P-glycoprotein and CYP3A4.” Journal of Pharmacology and Experimental Therapeutics. 2002 Aug;302(2):645-50. (source)

[iii] Srinivasan K. “Black pepper and its pungent principle-piperine: a review of diverse physiological effects.” Critical Revues of Food Science and Nutrition. 2007;47(8):735-48. (source)

[iv] Lee S.A., Hong S.S., Han X.H., Hwang J.S., Oh G.J., Lee K.S., Lee M.K., Hwang B.Y., Ro J.S. “Piperine from the fruits of Piper longum with inhibitory effect on monoamine oxidase and antidepressant-like activity.” Chemical and Pharmaceutical Bulletin (Tokyo). 2005 Jul;53(7):832-5. (source)

[v] Mao Q.Q., Xian Y.F., Ip S.P., Che C.T. “Involvement of serotonergic system in the antidepressant-like effect of piperine.” Progress in Neuro-psychopharmacology and Biological Psychiatry. 2011 Jun 1;35(4):1144-7 (source)

[vi] Huang W., Chen Z., Wang Q., Lin M., Wu S., Yan Q., Wu F., Yu X., Xie X., Li G., Xu Y., Pan J. “Piperine potentiates the antidepressant-like effect of trans-resveratrol: involvement of monoaminergic system.” Metabolic Brain Disease. 2013 Dec;28(4):585-95. (source)

[vii] Shoba G., Joy D., Joseph T., Majeed M., Rajendran R., Srinivas P.S. “Influence of piperine on the pharmacokinetics of curcumin in animals and human volunteers.” Planta Medica. 1998 May;64(4):353-6. (source)

[viii] Rinwa P., Kumar A. “Piperine potentiates the protective effects of curcumin against chronic unpredictable stress-induced cognitive impairment and oxidative damage in mice.” Brain Research. 2012 Dec 7;1488:38-50 (source)

[ix] Mori A., Kabuto H., Pei Y.Q. “Effects of piperine on convulsions and on brain serotonin and catecholamine levels in E1 mice.” Neurochemistry Research. 1985 Sep;10(9):1269-75. (source)

[x] Lee S.A., Hong S.S., Han X.H., Hwang J.S., Oh G.J., Lee K.S., Lee M.K., Hwang B.Y., Ro J.S. “Piperine from the fruits of Piper longum with inhibitory effect on monoamine oxidase and antidepressant-like activity.” Chemical and Pharmaceutical Bulletin (Tokyo). 2005 Jul;53(7):832-5. (source)

[xi] Chonpathompikunlert P., Wattanathorn J., Muchimapura S. “Piperine, the main alkaloid of Thai black pepper, protects against neurodegeneration and cognitive impairment in animal model of cognitive deficit like condition of Alzheimer’s disease.” Food and Chemical Toxicology. 2010 Mar;48(3):798-802 (source)

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Join The Discussion - 77 comments

October 16, 2021

Hi David , thanks for your adequate time on exploring and providing relevant information on the fully optimized brain with various nootropics

I was asking wether piperine is only used to make other nootropics work better or can be taken alone for stress and anxiety since it’s a maoi , again does deficiency in mitochondrial energy in the brain play a role in this neurodegenerative diseases . Thanks

    David Tomen
    October 16, 2021

    Moha, mitochondrial dysfunction has been implicated in things like schizophrenia, bipolar disorder, dementia, Alzheimer’s disease, Parkinson’s disease, epilepsy, stroke, cardiovascular disease, and chronic fatigue syndrome. A lack of energy is often the first indication that something is wrong.

    Piperine does provide the benefits of an MAOI but is not usually used for anything other than boosting the bioavailability of another nootropic.

October 16, 2021

Hi, I am taking NAC (sustained release) in morning and evening together with the rest of my stack (Adaptogens, Vitamines, etc.). I take NAC for anxiety relief (to keep my glutamate in check). Your explanation about the liver filtering out nootropics makes me wonder if NAC could negatively affect my other nootropics from being absorped, because NAC improves the liver function right? By the way: I think I have a strong working metabolism. How can I test for that though? I usually need some higher quantities of supplements to feel effects. Also I don’t gain weight a lot and I don’t need sport for keeping my weight in check. I am 44 now. I even think that the NAC made me loss few kilo’s last months. Not 100% sure because I of course also take other supplements.

    David Tomen
    October 16, 2021

    Jurgen, if NAC improves liver function is does it indirectly. NAC’s main function is as a precursor the glutathione which is your master antioxidant. And it helps revive dysfunctional dopamine receptors.

      October 16, 2021

      Thank you, so I can just take NAC at the same time as my other nootropics?

        David Tomen
        October 16, 2021

        Jergen, yes, that is exactly what I do 3-times per day.

        October 17, 2021

        Thank you, I will keep doing the same. One last question: Whenever I take sleep supplements like Lemon Balm, Valerian, Lavender and others that work on GABA I usually need to take more than the bottle recommends. Would adding 10mg BioPerine also improve the bioavailability of these sleep aids? Will bioperine increase availability for all supplements that are not in our bodies? So on 5-htp and such it won’t help but on adaptogens it will?

        David Tomen
        October 18, 2021

        Jurgen, not necessarily. Piperine will increase the bioavailability of drugs and nootropics that use the drug-metabolizing liver enzyme CYP3A4. So, do a search for “what liver enzyme metabolizes _________?” and insert the name of the drug or nootropic in the blank.

        For example, if you do that search for Valerian you’ll get something like this: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4180645/ which tells you that Valerian uses that same liver enzyme. And in this case Piperine should boost its effects.

April 21, 2021

I have a shortage of serotonin and GABA is the supplements needed to lift them

April 17, 2021

In the case of depression medication that does not work or has become ineffective, can a little piperine be added to it to activate it or increase its effect, especially since there are cases of resistant depression

    David Tomen
    April 18, 2021

    Aminos, Piperine is not your answer if you are not responding the antidepressants. If you truly have problems with serotonin it is possible to increase the medication effectiveness by using it with Inositol (Vitamin B8) or SAM-e.

    But if the antidepressant medication has never worked then it is the wrong medication for you. And you will need to find out the cause of your depression by experimenting with different nootropics. Until you find something that works.

April 17, 2021

Can the effectiveness of niacin be increased by adding a little piperine and does piperine harm the stomach?

    David Tomen
    April 17, 2021

    Aminos, niacin is absorbed in your small intestine and some in your stomach. It is not processed by your liver like some other drugs and supplements. So using Piperine will not have any effect on how much niacin gets into your system.

    And Piperine at recommended dosages should not cause any stomach problems.

February 4, 2021

Hi David

What is the half-life of piperinen and how long does it inhibit the enzyme CYP3A4 ?

I’m looking to combine piperine with Kanna capsules so the effect of them can last longer in my brain

    David Tomen
    February 4, 2021

    Dylan, the half-life of Piperine taken orally is about 2 hrs. I haven’t been able to find any data showing how long Piperine will inhibit the enzyme CYP3A4 but it should be as long as Piperine is present in your system.

    Could be longer however because grapefruit also inhibits this enzyme. And that inhibition activity continues up to 7 days after your last dose of grapefruit juice.

      Dylan Murphy
      February 7, 2021

      So could grapefruit juice taken with rhodiola or turmeric make them last longer in the brain than their normal half-lives?

        David Tomen
        February 7, 2021

        Dylan, grapefruit juice will not make “them last longer” but it can potentiate their effects because it inhibits the liver enzymes and transporters that typically get rid of these compounds.

        The only thing found that helps the bioavailability of Turmeric however is Piperine. Not grapefruit juice.

December 8, 2020

Hello David
Does piperine has effect on prolactin levens?

    David Tomen
    December 8, 2020

    Adjai, I spent some time with your question about Piperine AND prolactin and found nothing on the subject. Maybe someone else will weigh-in here. But I couldn’t find anything. Sorry.

November 15, 2020

Hello David
Does piperine has effect on ED?

    David Tomen
    November 16, 2020

    Adjai, not unless your ED is caused by anxiety, inflammation, or low dopamine.

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