Nooflux Zen Review – A Natural Mood Support That Actually Works?

This review is medically reviewed or fact checked to ensure factually accurate information.

With strict editorial sourcing guidelines, we only link to reputable media sites, academic research institutions and, when research is available, medically peer-reviewed studies. Note that an extensive list with all used Sources is available at the end of the review.

The information in our reviews is NOT intended to replace a one-on-one relationship with a qualified health care professional and is not intended as medical advice.

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Nooflux Zen is a clinically formulated brain supplement designed to improve your mood, natural stress response, and general wellbeing. The formula is marketed as an all-natural alternative to anti-anxiety & antidepressant medications without the commonly associated long-term adverse effects.


Nooflux Zen is a herbal-based brain supplement that combines the proven benefits of Kava Kava, Rhodiola Rosea, and Ashwagandha with one of the most popular amino acids in brain supplementation: L-Theanine. 

So how does Zen suppose to work?

First, the combination of potent herbal extracts with L-Theanine and Vitamin D3 may enhance your natural stress response. Chronic stress has been shown to negatively affect digestive health, the immune response, and the body’s natural ability to deal with stress. Zen includes ingredients proven to improve the body’s stress response by decreasing serum cortisol levels.

Secondly, Zen acts as a natural anxiety relief. Anxiety can interfere with overall health and daily activities. Nooflux’s formula contains Kava Kava & Rhodiola Rosea, two herbs shown to naturally relieve anxiety by stimulating serotonin, dopamine, and norepinephrine activity.

And lastly, the formula may promote a balanced mood, which is essential to optimize mental health and overall quality of life. Zen contains Saffron extract to improve mood by modulating certain neurotransmitters’ activities, such as serotonin.

Everything About Nooflux

Zen is a natural brain supplement produced by the US-based company Nooflux Labs LLC. The official website states that Nooflux Labs was founded to “inspire the mental state of flow by developing authentic products that support human development.” 

Besides Zen, Nooflux also makes Rest (improves sleep, supports a healthy circulatory rhythm, boosts energy), Axon (for enhanced memory recall, brain health support, and better overall cognitive function), and Flow (improves focus, mental clarity and supports peak performance).

Do you want to know more about Nooflux’s products? Read our full Axon Review.

Nooflux Labs contact details:

  • Address: 2590 Windmill Ln #324, Henderson, NV 89074, United States
  • Email:
  • Phone: (415) 935-3077
  • Website:

Nooflux Zen Ingredients

Nooflux Zen contains the following active ingredients per serving (2 capsules): 

  • Vitamin D3 1000 IU
  • Black Pepper Extract 10 mg
  • Saffron 30 mg
  • Kava Kava extract 50 mg
  • L-Theanine 100 mg
  • Rhodiola Rosea 300 mg
  • Ashwagandha root extract 800 mg

Inactive ingredients include hypromellose (vegetable capsule shell), rice bran, and rice concentrate. 

Ashwagandha is an ancient ayurvedic herb used for hundreds of years to increase virility and reduce stress. Ashwagandha has been shown to improve overall mood, provide longevity, and lower cortisol levels.

Ashwagandha benefits:

  • Lessens anxiety and depression;
  • Helps fight the effects of stress;
  • Enhances immune response.

Clinical studies showed Ashwagandha’s benefits in fighting chronic stress by reducing the stress hormone (cortisol) levels. Ashwagandha extract is also believed to be beneficial as a mood stabilizer for anxiety. 

L-Theanine is a naturally occurring amino acid found abundantly in tea. It is commonly used as a natural relaxant and a safer alternative to prescription sedatives. L-Theanine is also well-known for its excellent nootropic properties, such as providing a calming effect, enhancing learning, and improving memory.

L-Theanine benefits:

  • Improves memory recall;
  • Enhances mood and reduces anxiety;
  • Increases relaxation and sleep quality.

Another remarkable property of this amino acid is its ability to quickly cross the blood-brain barrier, an ability many ingredients used in brain supplementation don’t have. Once passed by the blood-brain barrier, L-Theanine works by increasing alpha-1 brain wave activity. Alpha-1 activity is positively linked with increased focus, better attention, and relaxation. L-Theanine also promotes GABA, dopamine, and serotonin production.

Rhodiola Rosea is a natural herb with adaptogenic qualities that can decrease exhaustion, fatigue, and stress. It was regularly used in Scandinavian, Chinese, and traditional Russian medicine as a physical restorative. Even today, Rhodiola is commonly used as a remedy for fatigue. Furthermore, clinical studies showed that Rhodiola Rosea extract could be a powerful nootropic with brain-boosting properties.

Rhodiola Rosea benefits:

  • Improves essential neurotransmitter production;
  • Enhances neuromotor fitness;
  • Lessens symptoms of fatigue.

Generally, the Rhodiola extract is used in fast-acting nootropic supplements. It works by suppressing the production and release of cortisol, a hormone closely linked to stress. Rhodiola also increases norepinephrine and epinephrine availability, both of which are neurotransmitters correlated with drive and energy. 

Increased neurotransmitters’ levels reduce fatigue perception, positively impact mood, improve neuronal communication, and enhance cognitive abilities. 

Kava Kava (also known as Piper methysticum) naturally reduces anxiety and promotes general wellbeing. Kava Kava extracts (made into a paste mixed with water) have been used for centuries in the South Pacific region during rituals and social gatherings. 

Kava Kava benefits:

  • Boosts immune response;
  • Reduces stress and restlessness;
  • Helps relieve symptoms of anxiety and depression.

Kava Kava works by activating GABA-A receptors in the brain, which has been shown to generate a calming effect. Due to this property, Kava extracts are regularly used as an alternative to sleep medications.

Saffron is the most expensive spice on earth, but its benefits go beyond being an expensive spice. The extract from this spice is used for its protective effects on the brain and its capacity to enhance mood through modulating serotonin production.

Saffron benefits:

  • Improves immune function;
  • Reduces blood pressure;
  • Relieves symptoms of anxiety and depression.

Saffron contains two substances, key for its beneficial properties. 

The first substance is safranal, which has been shown to stimulate GABA-A receptors and inhibit histamine 1 receptors. Safranal may also improve immune function by increasing white blood cell count in the body.

The second compound is crocin, which is transformed into crocetin in the stomach during the digestion process. Research showed that crocetin may increase serotonin levels in the brain, which might explain its antidepressant effects. 

Black Pepper contains a molecule called piperine, which has been shown to enhance other supplements’ absorption rates.

Black Pepper benefits:

  • Enhances memory recall;
  • Improved metabolism;
  • Increased nutrient absorption.

Besides improving nutrient absorption, piperine may also enhance memory by increasing beta-endorphins and serotonin, two essential molecules involved in memory formation.

How Much Does Nooflux Zen Cost?

Nooflux Zen list price is $23.99 for a 60 capsules bottle (30 servings). There is a Subscribe & Save option for 15% off ($21.24 per bottle). 

Zen is sold online by several stores such as Amazon, eBay, and the official Nooflux store. Amazon seems to offer the best deal. While the product is a bit more expensive on Amazon ($24.99), the shipping is free. As an Amazon Prime member, you can also opt for their fast, next day delivery.

Nooflux Zen Review – Pros & Cons


  • Lab-tested for purity and potency;
  • The formula contains ingredients with proven benefits for cognitive health;
  • Zen is cheaper than many other similar mood and stress supplements;
  • The supplement has a dedicated website with a decent amount of information.


  • Excepting maybe Ashwagandha and Rhodiola Rosea, every other ingredient is used in relatively small amounts, well below the amounts used to test their effectiveness in clinical studies;
  • There are very few reviews and testimonials online. However, the ones available are generally positive.

Customer Testimonials

I tend to run a bit anxious, but for the past few years, I have unknowingly been fighting with heavy metal toxicity. This has caused my body to go into ‘fight or flight,’ putting me in a place of what seems to me as extremest & debilitating anxiety. I’m currently […] Read full review

I have used the sleep product from this company, and it actually works. I was so happy that I ordered this Zen product. I only […] Read full review

I have a lot of anxiety, and it’s been a struggle to manage it. Not wanting to use pharmaceuticals, I had researched herbs and plant-based supplements that would help. Still, it was a challenge to source all the ingredients individually. After using […] Read full review

Nooflux Zen Side Effects & Warnings

Zen is advertised as a safe and natural formulation with no reported adverse effects when taken as recommended. 

However, based on the ingredients used in Zen and the many user testimonials we’ve researched, rare mild adverse effects may appear in some users. These side effects may include abdominal pain, upset stomach, headaches, dizziness, drowsiness, appetite suppression, blood pressure increase, insomnia, and jitters.

Similar Products

Before we conclude our Nooflux Zen review, let’s take a quick look over several other similar dietary supplements that may represent good alternatives for those who are not convinced by this formulation’s benefits.

Kava Kava Root made by Gaia Herbs – This natural supplement claims to support emotional balance, calm & relaxation. The product is available as vegan liquid capsules for faster absorption and immediate results, and each serving provides 442 mg of Kava root extract. It is also worth mentioning that all Gaia Herbs supplements use ingredients obtained from the company’s certified organic farm in NC, USA.

Kava Kava made by VH Nutrition – This is another excellent Kava Kava-based dietary supplement for restful sleep, curb cravings, improve digestive health, and reduce inflammation. Kava Kava extract is also known to enhance mental calmness and positive moods. One 60 capsule bottle of Kava Kava is enough for up to two months, and it costs only $15.99. 

Ashwagandha 1300 mg made by NutriRise – This popular Ashwagandha-based natural supplement is one of the best selling stress-relieving supplements on Amazon, with over 25,000 positive reviews from satisfied customers. The formula is made in the United States, and it supports thyroid and adrenal function, deeper and restful sleep, anxiety and stress relief, and the immune system. Ashwagandha 1300 mg is also extremely affordable at just $17.95 for a 120 capsule bottle (60 servings).


All ingredients used in Zen have some proven benefits to cognitive health and general wellbeing. Still, the relatively low amounts of some may render them ineffective in some users. 

It is also worth noting that Zen is not a unique brain supplement. Similar formulations are widely available online, and, in the end, it’s a matter of personal preference. 

Overall, Zen looks like a decent option for those looking for an affordable all-natural formula for stress relief and mood support.

Frequently Asked Questions

The suggested serving is two (2) capsules daily with a meal. For optimal results, adults should take three (3) capsules spread out over breakfast, lunch, and dinner.

Zen is a natural herb-based brain supplement marketed as an alternative to antidepressants & anti-anxiety medications. The mixture of potent herbal extracts such as Kava Kava, Rhodiola Rosea, and Ashwagandha with L-Theanine and Vitamin D3 may help reduce stress and support mood.

Zen may support cortisol balance, anxiety relief, mood, mental relaxation, and overall health.

No, Zen is not recommended for pregnant or nursing mothers.

Zen is not suitable for children under 18 or individuals with a known medical condition.

Nooflux Zen reviews on Amazon, as of February 2021, are positive, with 82% of the consumers ranking this product with four (4) stars or higher. Out of 59 customer reviews, here’s how this brain supplement ranks: 

  • 5 star – 66%
  • 4 star – 16%
  • 3 star – 12%
  • 2 star – 2%
  • 1 star – 3%

Zen is made by the US-based company Nooflux Labs LLC.


  • Nooflux Labs official website. Retrieved on February 4, 2021. [Source]
  • Dnyanraj Choudhary, Sauvik Bhattacharyya, and Kedar Joshi – Body Weight Management in Adults Under Chronic Stress Through Treatment With Ashwagandha Root Extract. Published in January 2017. Retrieved on February 4, 2021. [Source]
  • S. K. Bhattacharya, A. Bhattacharya, K. Sairam, and S. Ghosal – Anxiolytic-antidepressant activity of Withania somnifera glycowithanolides: an experimental study. Published in December 2000. Retrieved on February 4, 2021. [Source]
  • V. Darbinyan, A. Kteyan, A. Panossian, E. Gabrielian, G. Wikman, and H. Wagner – Rhodiola Rosea in stress-induced fatigue – a double-blind cross-over study of a standardized extract SHR-5 with a repeated low-dose regimen on the mental performance of healthy physicians during night duty. Published in October 2007. Retrieved on February 4, 2021. [Source]
  • Volker Fintelmann and Joerg Gruenwald – Efficacy and tolerability of a Rhodiola Rosea extract in adults with physical and cognitive deficiencies. Published in August 2007. Retrieved on February 4, 2021. [Source]
  • Gail N. Owen, Holly Parnell, Eveline A. De Bruin, and Jane A. Rycroft – The combined effects of L-theanine and caffeine on cognitive performance and mood. Published in August 2008. Retrieved on February 4, 2021. [Source]
  • Ji Hyun Baek, Andrew A. Nierenberg, and Gustavo Kinrys – Clinical applications of herbal medicines for anxiety and insomnia, targeting patients with bipolar disorder. Published in August 2014. Retrieved on February 4, 2021. [Source]
  • Jerome Sarris, Alexander Panossian, Isaac Schweitzer, Con Stough, and Andrew Scholey – Herbal medicine for depression, anxiety, and insomnia: a review of psychopharmacology and clinical evidence. Published in December 2011. Retrieved on February 4, 2021. [Source]
  • Mohammad Reza Khazdair Mohammad Hossein Boskabady, Mahmoud Hosseini, Ramin Rezaee, and Aristidis M. Tsatsakis – The effects of Crocus sativus (saffron) and its constituents on nervous system: A review. Published in October 2015. Retrieved on February 4, 2021. [Source]
  • Minh Tu T. Hoang, Laura F. DeFina, Benjamin L. Willis, David S. Leonard, Myron F. Weiner, and E. Sherwood Brown – Association Between Low Serum 25-Hydroxyvitamin D and Depression in a Large Sample of Healthy Adults: The Cooper Center Longitudinal Study. Published in November 2011. Retrieved on February 4, 2021. [Source]

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