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Decision Fatigue Ends Here. 43% Fewer Mistakes. One Drink.

Developed by Neuroscientist Dr. Watson

Published in Frontiers Peer-Reviewed Journal

43% Fewer Errors in Clinical Trials

Clears glutamate

No stimulants

Lemon Iced Tea Flavor

Works fast, lasts 6 hours

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.

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Maintained peak function

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Error reduction proven

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Better decisions made

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Of peak performance

4.8
Rated 4.8 out of 5 stars
69 Reviews

Numin | 40 Pack

PhD Neuroscientist-backed

$50 $120
Most Popular
Biggest Discount
1
  • 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.

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

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.

Solving Decision Fatigue at Its Source

The Hidden Epidemic

35,000 daily decisions cause glutamate buildup, mimicking ADHD symptoms.

The Breakthrough Discovery

Glutamate buildup creates mental static - Numin clears what caffeine can't touch

Works in 60 Minutes, Lasts 6 Hours

Removes the glutamate buildup that clouds thinking after intense mental work.

Clinically Proven Performance

Peer-reviewed Frontiers study: 43% fewer mistakes, 11% higher win rate, 6+ hours sustained focus.

Perform Better

Feel the Difference or it is Free

What Sets Numin Apart

Numin was developed by neuroscientists with one goal: to combat decision fatigue at its core. Unlike nootropics or energy drinks, Numin isn’t about speed—it’s about accuracy, especially when the stakes are high.

Developed by neuroscientists

Clinically proven

Targets specific biological mechanism

Combats decision fatigue

Precision formula

Full ingredient disclosure

Stimulant-free clarity

Performance-based validation

0mg caffeine

Nootropics

~50mg caffeine

Energy Drinks

~100mg caffeine

Coffee

~90mg caffeine

4.8
Rated 4.8 out of 5 stars
Based on 69 reviews
96%would recommend this product
Total 5 star reviews: 61 Total 4 star reviews: 5 Total 3 star reviews: 3 Total 2 star reviews: 0 Total 1 star reviews: 0
Slide 1 selected
69 reviews
  • JC
    Josh C.
    I recommend this product
    Rated 5 out of 5 stars
    3 hours ago
    Clears my brain

    I just feel so much clearer.

  • C
    Chelsy
    I recommend this product
    Rated 5 out of 5 stars
    3 hours ago
    Feel more capable

    usually about an hour after I just feel clearer, not hyped, not jittery, just more capable. Like making all decisions doesn't have to feel so heavy.

  • MS
    Maurice S.
    I recommend this product
    Rated 5 out of 5 stars
    3 hours ago
    Pretty good

    Surprisingly, this is actually good.

  • I
    Ifeoma
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    3 hours ago
    Helps with Brain Fog

    I feel super clear, free of all that brain fog. I feel super decisive, feel like I can make decisions, and I don't feel the fatigue that comes with making decisions anymore. I just feel very clear-headed and ready to conquer my day.

  • JD
    Jason D.
    Verified Buyer
    Rated 3 out of 5 stars
    2 days ago
    Grainy

    There has to be a way to make these ingredients more water soluble. No matter how much I mix the packet with water, there is still grainy residue at the bottom, and I use a frother. I can see and feel how the ingredients help with focus and concentration. However, I have been prescribed pharmaceuticals too long to notice a huge difference with it helping me out with decision fatigue.

Proven in Clinical Trials with E-Sports Athletes

43%

fewer reckless decisions made by athletes who took Numin

11.2%

increase in win percentage of athletes taking Numin

6+ hours

of reported sustained focus and clarity - without decision fatigue

*Results from clinical study on high-stakes esports athletes in double-blind U.S. trial.

FAQs

What exactly is decision fatigue?

It’s the mental drain that builds up after making too many choices — leading to impulsive, delayed, or poor decisions. A CEO, after a full day of analyzing data and making tough calls, might struggle to think critically and assess risk. A pro gamer in a high-stakes tournament may start making reckless moves after hours of intense focus. As mental energy depletes, decisions become slower, less strategic, and more prone to error.

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.

When should I take it?

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.

I already drink coffee, why do I need this?

Coffee provides energy but doesn't address the root cause of afternoon mental load and decision quality decline. Think of it this way: coffee pushes harder on the accelerator while your brain's exhaust system is clogged with glutamate. Numin clears that metabolic buildup. Most customers continue their morning coffee routine, then take Numin after lunch when a second cup would only add jitters without mental clarity.

Is Numin a stimulant?

Numin contains no caffeine or sugar. Unlike stimulants, it supports your brain’s natural processes to enhance cognitive function without the crash. Caffeinated drinks rely on stimulants for a short-term boost. Numin provides sustained cognitive support, specifically for decision-making, without artificial highs and lows.

Will this affect my sleep or make me jittery?

Numin contains zero caffeine and zero stimulants - it won't cause jitters, crashes, or middle-of-the-night wake-ups. It works by enhancing glutamate clearance, not by stimulating your nervous system. The only consideration: some users report feeling "too mentally geared" for sleep if taken within 4 hours of bedtime. We recommend taking it after lunch for optimal results.

How does Numin taste?

Numin has a refreshing citrus iced tea flavour.

What will I actually feel when I take it?

You won't feel a kick, rush, or sudden focus. Instead, you'll notice what doesn't happen - the 3PM wall doesn't arrive. Decisions that usually feel overwhelming by afternoon remain manageable. The email you've been avoiding becomes just another task to complete. Your morning clarity simply continues. Most people recognize this shift around day 4-5. You'll feel a sharper mind, longer focus, clarity and confidence.

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.