Improve Your Brain Function Every Day With The World’s Most Powerful Science-Based Brain Supplement, Guaranteed!

X The Ultimate Brain Performance Enhancer
X The Ultimate Brain Performance Enhancer
1,263 Verified 5-star reviews
$55 $67 18% OFF
FOR 1 BOTTLE (15 SERVINGS TOTAL)
Free Shipping Cancel or Pause Anytime
$99 $134 25% OFF
FOR 2 BOTTLES (30 SERVINGS TOTAL)
Free Shipping Cancel or Pause Anytime
$67
FOR 1 BOTTLES (15 SERVINGS TOTAL)
Free Shipping
$134
2 BOTTLES (15 SERVINGS EACH) SHIPPED ONCE
Free Shipping Cancel or Pause Anytime
Free Shipping
180-Day Money-Back Guarantee
Fast & Free Shipping (for subscriptions)
Secure Checkout
Easy Returns
17 premium ingredients clinically proven to improve brain function
Guaranteed more effective than any other brain supplement
Better focus, cognition, energy and memory—or your money back
Caffeine free • Gluten free
BACK TO TOP

1,263 Verified

5-star reviews

“X doubled my productivity in the first 30 days”

At first, I didn’t notice much. But, within a couple of weeks, my ability to work productively skyrocketed. I’ve finally found the Holy Grail of productivity!

“The only supplement supported by up-to-date neuroscience”

This is a collection of premium brain-enhancing ingredients that are all backed by science. If you're an Andrew Huberman fan, you'll love this!

“Finally found a solution to brain fog & memory issues”

In the past few years, my brain hasn’t been operating at the level it used to. I was afraid it would stay like that forever. With X, I have the energy, focus and memory of a 25-year old.

“I’ve tried all the others. Nothing compares to X.”

I’m a neuroscience geek, and I work hard to optimize every aspect of my life. I’ve tried literally every brain supplement, and X wins by a long shot.

"ADHD: Solved!"

There were no jitters or other negative side effects, just a smooth feeling of sustained concentration and focus.

"I would pay twice the price"

It's expensive, but the benefits to my brain’s performance are worth it.

"IQ boost (for real)"

Really loving this supplement - I feel smarter when I take it! So many powerful ingredients. Highly recommend!

"The best"

I’ve tried every brain supplement - and this one wins, hands down!

"Now I’m a morning person"

Never thought id say it! Each morning my mind feels refreshed and ready to go. No more grogginess.

"Found my purpose, thanks to X"

I feel more motivated and driven than ever before. this product has been life-changing.

Based on the most recent breakthroughs in neuroscience as of 2024

Clinical research supporting all ingredients

Contains 9 brand name ingredients

Will buy you competitor’s product if you like it more

OTHER
BRAIN
SUPPLEMENTS

Formulated over a decade ago

Contain ingredients with no scientific support

All generic ingredients

None have this guarantee

OTHER
BRAIN
SUPPLEMENTS

Based on the most recent breakthroughs in neuroscience as of 2024

Formulated over a decade ago

Clinical research supporting all ingredients

Contain ingredients with no scientific support

Contains 9 brand name ingredients

All generic ingredients

Will buy you competitor’s product if you like it more

None have this guarantee

What to expect

X starts to work within an hour.

First, you will notice an increase in mental clarity. A feeling of your brain being “switched on”, lifting you out of brain fog into an alert but calm state.

As you take X regularly, you will find that you slip effortlessly into a “flow state” — focusing intently on the work at hand for long periods. More powerful memory. Improved mental processing.

THE BIG FOUR BRAIN BENEFITS

As shown in clinical studies of the ingredients in X.

Take X for a full 30 days

The results continue to get better over time.

After 30 days of taking X daily, you may experience increased motivation and drive, greater creativity, improved mood, and relief from stress.

If you don’t love the results, get a full refund. We make it easy.

Try X Now, Risk-Free

180-Day Money-Back Guarantee

Only X Comes With These 2 Guarantees

  • 180-Day Money-Back Guarantee

    Either you love your X or it’s FREE!

    If you’re not thrilled with every aspect of your X experience, simply return the unused portion—or the empty bottle(s)!—anytime within 180 days of purchase for a full refund.

    We make it super-easy!

    To make a return, email hello@xbrain.science. Include your order number. (This applies to Amazon orders too!)

  • Best Brain Supplement Guarantee

    If you like another product more than X, we’ll buy it for you!

    The science supporting every one of our 17 active ingredients is so strong, we guarantee X will outperform any other brain supplement.

    If you get better results from another (non-stimulant) brain supplement on the market in the U.S., we’ll buy you that product!

    Maximum value $75 • Limit 1 claim per household • To make a claim, email hello@xbrain.science.

The perfect way to start your day

X does not contain caffeine.

But it does pair exceptionally well with coffee (or tea).

The two have a synergistic effect—each enhancing the effect of the other.

If you drink coffee in the morning, we highly recommend taking X at the same time.

You’ll have a better day. Guaranteed.

Brand-name ingredients set X apart

Brand-Name Ingredients
Price Per Serving (Without Discount)
9
$4.47
Qualia Mind®
2
$4.47
Alpha Brain® Black Label
1
$4.47
Neuriva®
1
$4.47
Prevagen®
0
$4.47
Alpha Brain®
0
$4.47
Dynamic Brain™
0
$4.47
Neuro Health®
0
$4.47

X contains these brand name ingredients:

CLICK ON ANY OF THE ABOVE LOGOS TO SEE THE RESEARCH-SUPPORTED BENEFITS OF THAT INGREDIENT.

FREQUENTLY ASKED QUESTIONS

1,263 Verified 5-star reviews

What customers say about X

"I tried every leading brain supplement for a week...”

DAVID M.
Verified Buyer

"X helps my thoughts flow better and my words come out clearer."

SALUSTIANO B.
Verified Buyer

"My boss noticed the improvement in my focus."

DEVIN B.
Verified Buyer

"Nothing helps my ADHD more than this."

JACK B.
Verified Buyer

"Suddenly my brain is working like it did 25 years ago."

DR. BOB Z.
Verified Buyer

"My energy and alertness are at 100% with X."

HASSAN M.
Verified Buyer

"I’m less stressed and more energized with X."

SADIRM C.
Verified Buyer

"X has been a game changer for my mental clarity."

SANA K.
Verified Buyer

"I close more deals because of X.”

OMAR M.
Verified Buyer

"X keeps me sharp and focused all day."

PHILLIP W.
Verified Buyer

"The level of calm, focused energy I get is incredible."

ADAM M.
Verified Buyer

"X enables me to perform at my best, every day."

DANNY H.
Verified Buyer

Customer Reviews

Based on 2 reviews
100%
(2)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
A
Alexandra G.
The Mental Clarity and Energy Boost I Was Looking For!

Since I started taking X, I’ve noticed a remarkable difference in my daily routine. My mental fog has lifted, and my ability to concentrate for longer periods has greatly improved. It’s like my brain has finally found its groove!

J
Jordan M.
The Boost in Mental Clarity I Didn’t Know I Needed

I started using X recently, and it’s been a game-changer for me. I’ve experienced a noticeable improvement in my concentration and overall mental energy. I no longer feel that midday slump; instead, I stay sharp and focused from morning till evening.

Try X Now, Risk Free

180-Day Money-Back Guarantee

Quality and Standards

X is made in a state-of-the-art FDA-registered facility in California, which has Organic Certification, Kosher Certification, and is certified for Current Good Manufacturing Practices (CGMP) by NSF & UL.

Every batch of X is third-party tested for purity and potency.

Improve your cognitive performance with naturally sourced ingredients that support your brain.

Try X Now, Risk Free

180-Day Money-Back Guarantee

Neuroscience has chosen these 17 ingredients

Ingredient
MG/Serving
Benefits (Supported by published research)
1
Alpha-GPC
BRAND: AlphaSize®
300mg
Supports memory, focus . Precursor to acetylcholine, which is essential to focused attention and neuroplasticity.
2
Choline
BRAND: Cognizin®
250mg
Supports elevated cognitive function, especially improved focus, attention and brain energy. Promotes brain health, neuroplasticity.
3
Bacopa Monnieri
BRAND: Bacognize®
300mg
Supports focus, attention, brain energy, motor speed and memory. Promotes brain health and neuroplasticity.
4
Ashwagandha
BRAND: KSM-66®
300mg
Supports cognitive function and memory, reduced stress and anxiety, and physical endurance, strength and muscle size.
5
Phosphatidylserine
BRAND: SerinAid®
100mg
Supports overall brain function, enhanced mood, memory, concentration as well as physical performance and recovery.
6
Rhodiola Rosea
BRAND: Rhodiolife®
250mg
Supports focus, memory, mood, anxiety relief, reduced fatigue, and improved energy, stamina and performance.
7
L-Theanine
BRAND: Suntheanine®
200mg
Supports relaxed alertness, focus and concentration. Helps promote a calm but energized state conducive to focused work.
8
Coffee fruit extract (decaf)
BRAND: CognatiQ®
200mg
Stimulates production of BDNF (Brain-Derived Neurotrophic Factor), which promotes growth of new brain cells .
9
PQQ
BRAND: PureQQ®
50mg
Supports elevated cognitive function and improved short-term memory. Improves cellular energy (ATP) production.
10
M Pruriens extract
50mg
Increases baseline level of dopamine in the brain and body, supporting motivation, drive, energy and focus.
11
L-Tyrosine
250mg
Increases noradrenaline and dopamine, supporting motivation, drive, energy and focus.
12
Ginkgo Biloba
50mg
Supports overall brain function and wellbeing. Helps promote positive mood and reduced anxiety.
13
Alanyl L-Glutamine
500mg
Supports overall brain function, memory and cognition. Alanyl L-Glutamine is superior to free form L-Glutamine.
14
Huperzia Serrata Extract (1% Huperzine-A)
5mg
Increases dopamine and acetylcholine transmission, which promotes focus and neuroplasticity.
15
Uridine
160mg
Supports improved memory through increased growth of synapses. Boosts dopamine, supporting motivation and drive.
16
Theobromine
200mg
The primary active ingredient in dark chocolate. Improves cognitive function and boosts focus.
17
L-Phenylalanine
500mg
Increases noradrenaline and dopamine, supporting motivation, drive, energy and focus.

OTHER ACTIVE INGREDIENTS:

Vitamin B6, 10mg • Vitamin B12 (Methylcobalamin), 500mcg — critical to brain function • Black pepper extract, BRAND: Bioperine®, 5mg — promotes absorption of ingredients

INACTIVE INGREDIENTS:

Hypromellose, Microcrystalline Cellulose, Calcium Carbonate, Bamboo Extract, Nuflow®, Leucine

Try X Now, Risk Free

180-Day Money-Back Guarantee

AlphaSize® and SerinAid® are registered trademarks of Chemi Nutra, LLC in the USA and other jurisdictions. Cognizin® is a registered trademark of Kyowa Hakko Bio Co., Ltd. Bacognize® is a registered trademark of Verdure Sciences, Inc. KSM-66® is a registered trademark of Ixoreal Biomed, Inc. PureQQ® is a trademark of Nascent Health Sciences. CognatiQ® is a trademark of VDF FutureCeuticals, Inc. Rhodiolife® is a registered trademark of Nektium Pharma, S.L. Suntheanine® is a registered trademark of Taiyo International, Inc. BioPerine® is a registered trademark of Sabinsa Corporation.