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4.9
Rated 4.9 out of 5 stars
81 Reviews

Numin | 20 Pack

PhD Neuroscientist-backed

$54 $60
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  • 43% fewer errors, 11% better decisions
  • Clinically proven, published in Frontiers
  • Clears glutamate causing brain fog
  • Works in 60 minutes, lasts 6 hours
  • Tastes like lemon iced tea
  • Rhodiola, Curcumin, L-Tyrosine blend
Ingredients

Rhodiola Rosea

Reduces mental fatigue by 30% in clinical studies. This adaptogenic herb helps your brain maintain performance under stress by modulating cortisol and supporting dopamine levels.

Curcumin

Protects neurons from glutamate damage. Enhanced bioavailability formula crosses the blood-brain barrier to clear inflammatory markers that impair decision-making.

L-Tyrosine

Precursor to focus neurotransmitters. Your brain converts L-Tyrosine into dopamine and norepinephrine - critical for maintaining attention during cognitive demands.

MSM (Methylsulfonylmethane)

Clears cellular waste from neurons. This organic sulfur compound enhances your brain's natural detoxification pathways, removing metabolic byproducts that cause mental fog.

Chromium Picolinate

Stabilizes brain energy supply. Regulates glucose metabolism to prevent the energy crashes that trigger poor decisions and mental fatigue.

Other Ingredients:

Citric Acid, Malic Acid, Stevia Extract, Fine Mediterranean Sea Salt

Flavors:

Natural Yuzu, Natural Lemon Italian Ice, Natural Black Tea
Product Details

Experience 6 hours of sustained decision clarity when everyone else fades. Numin combats decision fatigue at its source, helping you make sharper decisions, communicate with confidence, maintain focus, and stay productive all day long. Feel the difference in just 60 minutes.

Safe for daily use with no crashes, jitters, or dependency. FDA GRAS and NSF certified. Works with your brain's natural processes to support optimal cognitive function. Consult your healthcare provider before use if you have existing medical conditions.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Published Proof in Frontiers

Clinical Study: 43% Fewer Mistakes

Published in Frontiers in Nutrition | Peer-Reviewed, Double-Blind, Placebo-Controlled

The Results:

  • 43% reduction in errors under pressure
  • 11% better decision outcomes
  • 6+ hours sustained performance
  • Zero crashes or jitters reported

How We Proved It:
We tested 23 high-performers making 300+ decisions per minute during 13-hour cognitive marathons. While the placebo group's performance crashed, Numin users maintained sharp decision-making from hour 1 to hour 13.

What This Means For You:
The same formula that helps elite performers make split-second decisions under extreme pressure will help you power through your toughest workdays with consistent mental clarity.

Full study: Frontiers in Nutrition, November 2024

View Published Research → https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1680030/full
Shipping

Free U.S. shipping. Orders ship same day (Mon–Fri) via ground shipping.

Clinically Proven in Frontiers Medical Journal

Peer-reviewed clinical trial published in Frontiers in Nutrition (November 2024). Double-blind, placebo-controlled crossover study demonstrates statistically significant reduction in decision errors and improved cognitive performance under sustained mental load. Developed by neuroscientist Dr. Shawn Watson targeting glutamate accumulation - the physiological basis of decision fatigue.

View Third-Party Testing Results Learn More
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Maintained peak decision-making ability for 6 full hours.

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Less average reckless decisions.

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11.2% Increase in win rates

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Of sustained decision clarity.

4.9
Rated 4.9 out of 5 stars
Based on 81 reviews
96%would recommend these products
Total 5 star reviews: 73 Total 4 star reviews: 5 Total 3 star reviews: 3 Total 2 star reviews: 0 Total 1 star reviews: 0
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81 reviews
  • M
    Marcela
    I recommend this product
    Rated 5 out of 5 stars
    Yesterday
    5 Stars

    Fast shipping. Great product

    Was this helpful?
  • J
    John
    I recommend this product
    Rated 5 out of 5 stars
    Yesterday
    5 Stars

    Actually works.

    Was this helpful?
  • AA
    Alberto A. d. T. R.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Very impressed!

    Numin has taken my focus and mental clarity to another level! I feel sharper, more present, and able to think with real precision.

    Was this helpful?
  • L
    Laura
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    Great for reducing caffeine consumption

    I’ve been using this supplement for a while and have noticed a real difference, particularly when reading in the afternoon. I’m able to concentrate for longer without needing to reread the same sentences repeatedly. I also drink coffee regularly, so I really appreciate that it’s both caffeine- and sugar-free. It provides a subtle but effective boost without any jitters.

    Was this helpful?
  • MC
    Michelle C.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 weeks ago
    Great!

    This stuff is great! I bought it because I’ve been crushingly tired for months. I can’t drink more coffee bc then my heart races and I’m up all night. So I thought, if this worked, then I’d at least be able to think more clearly while still being tired. Well, surprise! Because I have so much more energy now! I don’t feel like I’m always chasing more sleep and I don’t feel that crushing exhaustion I did before. Keep in mind, I’m not sleeping any differently, or doing anything differently. I’m just working better! And it tastes nice too, so that’s a bonus!

    Was this helpful?

Join Thousands of High Performers

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Antonio M.

Olympia, WA

"I could feel that small tasks at work were snowballing into big problems, as I was getting hit by brain fog. I needed focus, and after finding Numin I got that!"

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Kayla Y.

Plainfield, IL

"Numin peaked my interest, but once I tasted the flavour I was sold!"

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Edgar R.

Kennewick, WA

"After I learnt about decision fatigue, I knew my brain was cooked. Numin felt like a cheat code that unlocked my brain."

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Stephanie W.

Valley View, PA

"I was a working mom suffering from brain fog without even knowing it. Once I tried Numin I realised how I could've been operating everyday."

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Jon C.

Houston, TX

"I knew I was overworking myself with family, work, and my own life. But I didn't think there was much I could do. Numin gave me back the consistency and focus I thought I'd lost."

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Carrie V.

Binghamton, NY

"I cook for everyone in my family, and after all those decisions I couldn't think straight. Taking Numin stopped the helped prevent the toll cooking was taking on my brain."

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Alex L.

Wilmington, NC

"9 hour shifts day in day out were killing me. But after finding Numin I could handle the workload and still have enough brain power to decide what I want for dinner."

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Hunter C.

Keyser, WV

"I've got 6 kids, so I'm always on the go. By the afternoon I was burnt out, but with Numin I feel fresh all day."

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Joseph O.

Carrollton, OH

"I was getting hit hard by brain fog at my new job, but with Numin I regained control of my clarity."

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Henry W.

Irvine, CA

"As an entrepreneur, I've got meetings at any time of the day. Numin gives me back the focus I need to stay locked into these meetings, but without the stimulants that keep me wide awake after."

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Natali Z.

Aubrey, TX

"My life just felt more and more overwhelming. Numin helps me stay productive at work so I can stay on track and spend more time where it actually matters with my kids."

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Chet T.

Ogden, UT

"Before Numin, I'd come home from an intense day at work and couldn't even decide what I wanted for dinner. Now I feel sharp, always."

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Bonnie A.

Ankeny, IA

"After a certain time of day, I was always second guessing my decisions. Numin helped to beat the decision fatigue, and give me back confidence in my decision making!"

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Valerie A.

Las Vegas, NV

"I'm a mom, and I can never think straight after busy days. Numin helped clear the brain fog so I could keep thinking clearly for my kids!"
Two purple Numin brain fog supplement packets showing the orange logo and product branding

Key Ingredients

Unlike generic brain supplements with dozens of ingredients, Numin uses 5 scientifically-selected compounds that work synergistically to target glutamate clearance and support sustained decision-making clarity. Each ingredient is precisely dosed and bioavailable for maximum cognitive impact.

See Full Ingredients

High Bio-Available Curcumin Complex

Clears brain waste and regulates stress hormones, essential for making quality decisions.

Certain compounds with curcumin can upregulate (increase) GLT1 - a key cellular transporter that clears synaptic waste in your brain. In addition, curcumin inhibits (slows) the production of glucocorticoids - a stress-inducing compound. Increasing GLT1 and reducing glucocorticoid production is a 1-2 punch to reduce the effects of decision fatigue.

MSM

Reduces oxidative stress and inflammation, supporting clarity under pressure.

MSM is a naturally occurring organosulfur compound which can increase the activity of GLT1, a key mechanism in clearing excess neurotransmitters in the synapse - the hallmark of decision fatigue.  

L-Tyrosine

Enhances cognitive function during high pressure moments to keep you sharp.

During stressful periods with intense cognitive loads, a key group of neurotransmitters (catecholamines) may become depleted. L-Tyrsosine is one of the key building blocks of these molecules, and has been shown to enhance cognitive performance, in stressful, cognitively demanding situations.

FAQs

What exactly is decision fatigue?

The mental decline in decision quality that happens after making many choices. Unlike general tiredness, it specifically impacts judgment and reasoning ability. It's a physiological state where excess glutamate builds up in neural pathways.

When should I take Numin?

Take Numin before or during any situation where decisions matter most. If you start feeling mentally foggy, second-guessing yourself, or struggling to focus, that’s your cue.

Who is Numin for?

If making sharp, confident decisions is part of your daily life, Numin is made for you. Whether you’re leading a team, making high-stakes calls, or navigating complex situations, Numin helps your brain stay clear and focused.

What will I feel?

Your mind will feel sharper, decisions will come easier, and focus will last longer. You will stay in control, planning, reacting, and adapting with clarity and confidence.

How does Numin taste?

Numin has a refreshing citrus iced tea flavour.

Will Numin make me jittery like caffeine?

Caffeinated drinks rely on stimulants for a short-term boost. Numin provides sustained cognitive support, specifically for decision-making, without artificial highs and lows.

Are there any side effects?

No side effects were reported in our clinical trial. However, as with any supplement, consult your doctor if you have concerns or medical conditions.
View All FAQs
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