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

Neuroscientist Dr. Shawn Watson developed Numin to clear glutamate buildup - the cause of decision fatigue. Published in Frontiers: 43% fewer errors, 6 hours sustained mental clarity.

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

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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.

Double-Blind Study Published in Frontiers Read the Frontiers Study

Maintained peak function

Error reduction proven

Better decisions made

Of peak performance

4.9

Rated 4.9 out of 5 stars

32 Reviews

Numin | 40 Pack

PhD Neuroscientist-backed

$50 $120

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

Who It’s For

For those who must perform at their peak whether at work, pursuing goals, or enhancing cognitive abilities

High-Stakes Professionals

Stay sharp when lives and reputations are at stake

Executive Decision-Makers

Make your 5PM decisions as sharp as your 9AM ones

Elite Competitors

Maintain your edge when every move counts

Knowledge Workers

Power through afternoon brain fog without the crash

Advanced Formula

Smarter ingredients. Sharper decisions. Our patent-pending, clinically proven blend is designed to optimize your brain's performance during the most demanding mental challenges.

High Bio-available Curcumin Complex

Clears brain waste and regulates stress hormones, essential for mental clarity.

L-Tyrosine

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

Chromium Picolinate

Improves glucose transport to brain cells, fueling focus and cognitive energy.

Rhodiola Extract

Boosts mental stamina and stress resilience with potent Rosavin and Salidroside.

MSM

Reduces oxidative stress and inflammation, supporting clarity under pressure.

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

4.9

Rated 4.9 out of 5 stars

Based on 32 reviews

100%would recommend this product

Total 5 star reviews: 29 Total 4 star reviews: 3 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0

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32 reviews

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CV
Carrie V.
I recommend this product
Rated 5 out of 5 stars
5 hours ago
Incredible focus!
I am so impressed with this supplement! I used to have an afternoon slump where I just couldn't focus anymore - but now - I am the QUEEN of focus - all day long. Decision fatigue is no more! Get this - you will be so glad you did!
Was this helpful?
M
Michelle
Verified Reviewer
I recommend this product
Rated 4 out of 5 stars
2 days ago
decent
I was looking for more of an..enhancement like I feel with coffee or.. even better Vyvanse/Modanifil. This wasn't that but I did like how I didn't feel like I needed a boost? If that makes sense.. I'll keep using it but bit of a thing to get used to rather than a stimulant.
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L
Liam
I recommend this product
Rated 5 out of 5 stars
2 days ago
helped my burn out
I'm a videographer and editor by trade with a lot of volume to get through. I didn't want to rely on caffeine anymore to get me through my editing load. I have an interest in science so the fact Numin is clinically back stood out to me. Tastes better than any other dietary supplement I've ever tried, and it works. So it's a win for me
Was this helpful?
RS
Ruth S.
I recommend this product
Rated 5 out of 5 stars
2 days ago
Return to work
I had major surgery and I recently returned to work after having time off for recovery. It's been really helping me keep deal with the mental load of running my business after having time off.
Was this helpful?
M
Marie
I recommend this product
Rated 5 out of 5 stars
2 days ago
Helped me get my focus back
Been struggling with focusing on anything recently, I was recommended numin. Can get into the flow of work and focus for several hours
Was this helpful?

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.

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.

How does Numin taste?

Numin has a refreshing citrus iced tea flavour.

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.

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.

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

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

Clinically Proven in Frontiers Medical Journal