Calm focus
200mg of green-tea caffeine paired with 100mg of L-theanine in each full serving.
The ultimate focus powderCORTEX CLEAR
The ultimate focus powder
Take control of your focus with CORTEX. Each full serving delivers green-tea caffeine, L-theanine, and Alpha GPC in a zero-sugar drink mix built for deep work.
⚡20 full servings◎Fully disclosed formula✓Free U.S. shipping
Calm focusBrain energy0g sugar
$32.99
$1.65 per full serving · 20 two-scoop servings per tub
1 scoop · 100mg caffeineFocused2 scoops · 200mg caffeineLocked in
One scoop is a lighter half serving; two scoops is the full label serving. Adjust to your caffeine tolerance.
Add Sleep Strips to your cart and use code CLEARFREESLEEP at checkout.
↺30-day money-back guaranteeMix it for a month. If CLEAR is not your focus routine, contact support within 30 days of delivery for a full refund on your first order.
▣Free U.S. shipping↺No subscription⌁Secure Shopify checkout
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20 full servings per tub · 2 scoops per serving · up to 40 lighter servings
200mgGreen-tea caffeine
100mgL-theanine
300mgAlpha GPC
0gSugar
◎Every dose disclosedNo proprietary blends
⌁Read the labelIngredient amounts available
▣Choose your portionOne or two scoops
◇0g sugar10 calories per full serving
↺30-day guaranteeMoney back if it is not for you
Sound familiar?
The 2pm problem.
Most focus routines are built out of whatever is closest — a third coffee, a can from the fridge, a tub with a blend you cannot read.- ✕The third coffee of the day that stops doing anything
- ✕A can of sugar you drink for the caffeine you actually wanted
- ✕Powders whose amounts hide inside a proprietary blend
- ✕A fixed dose that is too much on a light day and not enough on a long one
- ✕Paying three dollars a serving for a fixed caffeine dose
What CLEAR does instead
A dose you actually control.A full serving has 200mg of green-tea caffeine, 100mg of L-theanine, and 300mg of Alpha-GPC. Use one scoop for a lighter half serving or two for the full label serving.Why people switch
What a full serving gives you.
Brain energy
300mg of Alpha-GPC, a choline source included for nootropic mental-clarity support.
Zero sugar
10 calories and 0g of sugar per full serving.
A dose you set
One scoop is 100mg of caffeine. Two is 200mg. Same tub, adjusted to the day in front of you.
Daily B vitamins
A full B-vitamin complex — thiamin, riboflavin, niacin, B6, folate, B12, and pantothenic acid.
Nothing hidden
Every active prints its own milligram amount on the panel. No blends, no rounding, no mystery.
Take control of the work block
Take control of your focus.
Every serving lists the exact amount of caffeine, L-theanine, Alpha GPC, B vitamins, and every other active ingredient.- Green-tea caffeine
- 200mg
- L-theanine
- 100mg
- Alpha GPC
- 300mg
- Sugar
- 0g
Three steps
How to mix it.
- 1Add your doseMix two level scoops for a full serving, or one scoop for a lighter serving, into cold water.
- 2Stir or shakeIt goes clear in about ten seconds in a shaker, with nothing left at the bottom of the glass.
- 3Drink at the startTake it at the front of the work block rather than after the wall has already hit.
Powerful ingredients working together
Every active, every amount.
Amounts shown are per full two-scoop serving. Use one scoop for half of each listed amount and up to 40 lighter servings per tub.Green-tea caffeine
Natural caffeine from green tea, balanced with L-theanine for sustained output.
L-theanine
Pairs with the caffeine to support calm, steady focus.
Alpha-GPC
A choline source included for nootropic mental-clarity support.
L-arginine HCl
An amino acid included in the formula, listed at its full amount on the panel.
Inositol
Included for nootropic support alongside the choline and theanine.
Asian ginseng
A standardized ginseng extract rounding out the nootropic side of the formula.
Read it before you buy it
The whole label.
This is the panel printed on the tub — not a marketing summary of it. Every active is listed with its exact amount, so nothing hides inside a blend total.- 1The panel lists a 2-scoop serving. One scoop is exactly half of every amount.
- 2No proprietary blends. Every active shows its own milligram amount.
- 3See the transparency page for ingredient details and current lab-report availability.
How it stacks up
Read the difference.
Compared against what a typical energy drink and a typical coffee-shop cup give you for the same work block.| Per serving | CORTEX CLEAR | Typical energy drink | Coffee |
|---|---|---|---|
| Sugar per serving | 0g | Often 25g+ | 0g black |
| L-theanine for calm focus | 100mg | Rarely included | None |
| Alpha-GPC (choline) | 300mg | None | None |
| Every active amount printed | Yes — no blends | Often blended | Not applicable |
| Caffeine you control | 100mg or 200mg | Fixed per can | Varies by pour |
| Cost per serving | $1.65 | About $3 a can | About $3 a cup |
Energy drink and coffee columns describe typical products in each category, not any specific brand. Amounts vary by product and by pour.
What people say
Reviews.
4.8★★★★★Based on 214 reviews
- 5 ★
- 84%
- 4 ★
- 11%
- 3 ★
- 3%
- 2 ★
- 1%
- 1 ★
- 1%
One scoop is my whole morning setup now
I was running two energy drinks a day and hated how much sugar that was. One scoop of Dark Mode in cold water does the same job for me and I actually know what is in it. The sour gummi worm flavor is not subtle, which I like.
The label is why I bought it
I read supplement panels for a living and almost everything in this category hides behind a blend total. This one lists every milligram. 100mg of caffeine with 50mg of theanine at one scoop is exactly the ratio I wanted.
Two scoops for long sessions, one for normal days
Being able to move between 100mg and 200mg without buying a different product is the part I did not expect to care about. Long build days get two scoops. Everything else gets one.
Great formula, flavor is very sour
No complaints about how it mixes or how it works for my afternoons. Fair warning that sour candy means sour candy — I use 12oz of water instead of 8 and it is perfect.
Cheaper than my old habit by a mile
Fifty cents a serving against three dollars a can was the entire argument for me. Forty servings has lasted me almost two months at one scoop a day.
Dissolves clean, no grit at the bottom
I have thrown out powders that never fully mixed. This one goes clear in a shaker in about ten seconds and there is nothing left in the glass at the end.
Try it risk-free
A full month to decide.
Mix one scoop every workday for a month. If CLEAR is not the focus routine you want, contact support within 30 days of delivery for a full refund on your first order.Full refund on your first orderEasy supportNo restocking fee
Before you order
Straight answers.
What is in one serving?
A full two-scoop serving delivers 200mg green-tea caffeine, 100mg L-theanine, 300mg Alpha-GPC, 1,000mg L-arginine, 600mg inositol, 50mg Asian ginseng, a full B-vitamin complex, and 0g sugar. Use one scoop for half of every listed amount.
How much caffeine should I use?
One scoop is 100mg of caffeine — roughly a cup of coffee. Two scoops is 200mg. Start at one scoop and adjust to your own caffeine tolerance rather than to a fixed can size.
Are there proprietary blends?
No. Every active is listed with its exact amount on the Supplement Facts panel — nothing is hidden inside a blend total. Our transparency page explains the formula and the current availability of lab reports.
Is this a subscription?
Only if you choose it. One-time purchase is the default and never recurs. Subscribe & save takes 15% off and can be changed, paused, or cancelled anytime from your account.
What if it is not for me?
Contact support within 30 days of delivery for a full refund on your first order.
Who should not use it?
Adults 18+ only. Speak with your physician before use if you are pregnant, nursing, caffeine-sensitive, taking medication, or managing a medical condition.
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