The only 2-ingredient focus formula built on the clinically studied 3:2 ratio. Relax your brain, sharpen your focus. Every time.
Secure checkout · 30-day money-back guarantee
Caffeine alone is scientifically incomplete. Without L-theanine it creates jitters, anxiety, and crashes. You've been using half a product your entire life.
Caffeine blocks adenosine receptors — the chemical that makes you tired. But without a partner, it triggers your nervous system to release more adrenaline. The result: jittery, anxious, scattered energy.
L-theanine activates alpha brain waves — the same pattern observed in meditating monks. It quiets the Default Mode Network, the part of your brain responsible for mind-wandering and distraction.
Together, they produce Relaxed Alertness: calm AND sharp at the same time. fMRI studies confirm this combination reduces distractor responses. You've been using caffeine wrong your entire life. ZENND completes it.
Two ingredients. Clinically studied. Brutally transparent.
The 3:2 ratio activates alpha brainwaves — the state of calm, sharp focus that normally takes years to train. You get it in a tablet.
The Alpha StateCaffeine alone creates anxiety because your nervous system is firing without direction. L-theanine quiets the noise. The energy stays. The jitters don't.
Zero SugarNot 10 ingredients with 5mg of each. Two ingredients at the exact doses used in fMRI and alpha-wave studies. Every mg shown to matter.
3:2 RatioNo proprietary blends. No marketing doses. 120mg L-theanine. 80mg natural caffeine. Printed on the label. Verified by a third party. Period.
Full TransparencyEvery other focus supplement adds more. We removed everything that doesn't work and doubled down on the two that do.
L-theanine is a naturally occurring amino acid found almost exclusively in green tea. At 200mg — the dose we use — it activates alpha brainwaves within 45 minutes of ingestion.
Alpha waves are associated with calm alertness. It doesn't sedate. It doesn't dull. It quiets the Default Mode Network: the part of your brain that wanders, spirals, and scrolls.
fMRI studies confirm alpha wave activation and reduced Default Mode Network activity within 45 minutes.
Natural caffeine from green coffee — not synthetic, not from a lab. At 150mg it provides sustained energy and focus by blocking adenosine receptors.
Alone, caffeine creates jitters. Paired with L-theanine at the 2:1 ratio, it becomes something else entirely: clean, sustained, calm energy. This is what caffeine was always supposed to feel like.
At 150mg, caffeine provides sustained energy without the spike and crash associated with higher doses or sugar-loaded delivery formats.
No proprietary blends. No fairy-dust dosing. Every milligram disclosed, every amount scientifically justified.
L-theanine is a naturally occurring amino acid found almost exclusively in green tea. At 120mg — the dose we use — it has been shown in multiple controlled studies to increase alpha-wave activity in the brain within 45 minutes of ingestion.
Alpha waves are associated with a state of calm alertness — focused but not tense. L-theanine doesn't dull your edges. It removes the noise so your sharpness can actually land.
Natural caffeine from green coffee beans — not synthetic. At 150mg it provides sustained energy and focus by blocking adenosine receptors without triggering the anxiety spike that comes from higher doses.
Paired with L-theanine at the 3:2 ratio, caffeine stops being a liability and becomes the focus tool it was always supposed to be.
Two capsules. Locked in. Every time. That's not a tagline — it's what the science says should happen when you give your brain the complete formula it's been missing.
Other supplements bury the 2 ingredients that actually work inside 18 others. ZENND just gives you the 2.
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ZENND
Our Pick
$49.99/mo
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Thesis
$79–129/mo
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Hunter Focus
$90/mo
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Neuro Gum
$25/mo
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|---|---|---|---|---|
| Clinically studied 3:2 ratio | ✓ | ✕ | ✕ | ~ |
| 120mg L-Theanine per serving | ✓ | ~ | ✕ | ✕ |
| 80mg+ natural caffeine | ✓ | ✓ | ✓ | ✕ |
| Only 2 active ingredients | ✓ | ✕ | ✕ | ~ |
| Full label transparency | ✓ | ~ | ✕ | ✓ |
| Third-party tested | ✓ | ~ | ✕ | ✓ |
| No proprietary blends | ✓ | ✕ | ✕ | ✓ |
| Zero sugar | ✓ | ✓ | ✓ | ✕ |
| Price per serving | $1.11 | $3.50+ | $3.00 | $0.83 |
Alpha waves take time to become your default state. Here's what most people experience.
Within 45 minutes you notice something different. The resistance to starting is quieter. You open your laptop and just... begin.
Easier to startSessions feel different. Your phone pulls at you less. The Default Mode Network — the brain region responsible for distraction — starts losing its grip.
Phone distracts you lessYou stop dreading study sessions. Deep work feels less like fighting yourself and more like just working. Alpha state on demand.
Deep work feels naturalThe anxious, jittery focus is a memory. You're calm and sharp every time you sit down. This is what focus was supposed to feel like.
This is the baseline nowIt's not a discipline problem. It's a brain chemistry problem. ZENND fixes the chemistry.
"It's not a discipline problem. It's a brain chemistry problem. I kept telling myself I was lazy. ZENND fixed the brain chemistry. Turns out I wasn't lazy at all."
"The Stack is insane value. Three bottles, one price. I've been going for 10 weeks straight and my GPA went up half a point."
"I didn't believe supplements worked until I tried this. The difference between days I take it and days I don't is embarrassingly obvious."
"My roommate started stealing mine. Had to order an extra bottle. Take that as a review."
"Two capsules before any study session. No ritual. No complicated stack. Just locked in, every time."
"I appreciate that they only used two ingredients. Most focus supplements feel like they're trying to overwhelm your body with 15 things at once. ZENND is clean."
We don't hide behind fine print. ZENND either works for you or you don't pay for it. That's the deal. No hoops. No 'store credit only.' No 'you have to prove it didn't work.' Just a full refund.
Coffee gives you caffeine. ZENND gives you caffeine plus 120mg of L-theanine in the clinically studied 3:2 ratio. That ratio activates alpha brainwaves, quiets the Default Mode Network, and eliminates the jitteriness and anxiety that comes from caffeine alone. Coffee is half a product. ZENND completes it.
Most people do — within 45 minutes. The onset is subtle, not dramatic. You notice you've been working for 40 minutes and haven't picked up your phone. The signal-to-noise ratio in your head changes. It's not a buzz. It's clarity.
Yes. ZENND contains only L-theanine and natural caffeine — both well-studied, non-addictive compounds with strong safety profiles across thousands of human studies. It's non-habit-forming by design. Take it when you need to lock in. Stop whenever you want.
Marketing. When a supplement lists 15 ingredients, they split a small budget across all of them. Most end up dosed below clinical thresholds - tiny amounts that look impressive on a label but don't do anything in your body. ZENND has two ingredients at full clinical doses. That's the whole product.
Two tablets per serving. Take them 30-45 minutes before you need to focus — before a study session, an exam, a deep work block. Don't take within 6 hours of sleep since the caffeine will affect your ability to fall asleep.
Then you don't pay for it. We offer a full 30-day money-back guarantee. No questions, no shipping back the product. Email us within 30 days and we refund the whole order. The risk is ours.
Our Promises
Made in USA
Formulated and manufactured in an FDA-registered, GMP-certified facility.
Third-Party Tested
Every batch tested by an independent lab. Certificate of Analysis available on request.
Full Label Transparency
No proprietary blends. No hidden doses. Every ingredient and amount listed clearly.
30-Day Guarantee
Not locked in within 30 days? Full refund. No questions, no hoops, no hassle.
