Signal State Core

Clean cognitive support for deep work.

One stimulant-free daily formula for the deep-work hours: four named cognitive actives, no proprietary blends, with the evidence and studied dose range behind every one a single click away.

Formula conceptNot final label copy

Signal StateCore

Stimulant-free cognitive support

Proprietary blends
0
Stimulants
0

Where this stands

Signal State Core is a pre-launch product concept. The formula is not final, and all product language here is a working direction subject to regulatory and legal review. It is not label copy or advertising copy.

The state it's built for

The hour where the noise drops out.

You know the difference between busy and clear. Core is designed for the second one: the long, quiet block where deep work actually happens, without a caffeine spike that borrows the afternoon to pay for the morning. Stimulant-free by design: no jolt, no crash, just support for calm, sustained focus.

  • Stimulant-free by design

    No caffeine and no stimulant positioning. Designed for calm, sustained focus rather than a spike and a crash.

  • No proprietary blends

    Every ingredient is named on its own line rather than pooled into a blend total, so each one can be checked against the research it cites.

  • A reason for every ingredient

    Each active earns its place with a studied role, a studied dose range, and an evidence grade, all published on its own page.

  • Conservative by default

    Language stays inside what the evidence supports, and all of it remains subject to regulatory and legal review.

Who it's for

One formula. Three kinds of demanding days.

Core is a single stimulant-free formula, not a personalized blend, but different work puts weight on different actives. Here's how the same formula maps to the way your days actually run, with the evidence one click away.

Deep-work professionals

The day is one or two long, demanding blocks (writing, engineering, analysis), where the goal is settled, sustained attention, and a caffeine spike-and-crash cycle works against you.

Where Core puts the weight

  • Citicoline: a choline-donating compound studied as a focus and mental-energy ingredient for sustained attention.
  • L-Theanine: studied for a calm, settled kind of attention without sedation, the counterweight to an over-caffeinated baseline.

Founders & operators

The day is context-switching under pressure (decisions, meetings, fires), where the failure mode is stress-related fatigue by mid-afternoon rather than a lack of raw focus.

Where Core puts the weight

  • Rhodiola Rosea: an adaptogen studied for stress-related fatigue and sustained output under load, at a standardized extract dose.
  • L-Theanine: studied for a calmer working baseline, useful when the day itself is the stressor.

Students & researchers

The work is reading, retaining, and recalling over weeks (a semester or a research cycle), plus long same-day study blocks that reward staying settled and attentive.

Where Core puts the weight

  • Bacopa Monnieri: a traditional herb studied for memory and learning over sustained daily use (cumulative, not same-day).
  • Citicoline: studied for attention and mental energy on the study-heavy days themselves.

Studied roles, not promised outcomes. Every grade and dose is on the ingredient page.

Compare us to anything

Four questions that expose any focus stack, and Core's answers.

These four questions are the checklist we teach on the buyer's guide, and the one we expect to be judged by. Hold any competitor to them. Here is how Core holds up.

  • Is there human evidence, or only lab and animal data?

    Core: every active is graded against published human research (trials and meta-analyses where they exist), with the citations on its ingredient page.

  • Does the label dose match the studied dose?

    Core: each active is specified at its own studied dose in the working formula, checked dose-for-dose against the research it cites. We published a real label-versus-study teardown so you can see the gap this closes.

  • Is every dose disclosed, or hidden in a proprietary blend?

    Core: no proprietary blends, ever. Every milligram will be disclosed on the label. A blend that hides its doses can't be evaluated at all.

  • What are the honest cautions?

    Core: published per ingredient (interactions, side effects, and who should be careful) before anyone is asked to buy.

The same standard graded ingredients out of the formula. See everything we evaluated, including the rejects, in the Evidence Explorer.

The formula

Four actives, at transparent doses.

Four stimulant-free cognitive actives, each at its own disclosed studied dose. No proprietary blend, and no passenger ingredients: every active is dosed to carry its own claim. Each links to a full plain-English breakdown: evidence grade, studied doses, honest cautions, and what to look for on a label.

Fresh green tea leaves in soft light — the natural source of L-theanine
Amino acidEvidence: Grade B

L-Theanine

Studied for
Calm focus · Taking the edge off caffeine
Studied dose
50–250 mg per serving across the trials cited here (Nobre 50 mg; Haskell 250 mg), most commonly 100–200 mg.
A row of eggs on a neutral background — a familiar dietary source of choline
Choline sourceEvidence: Grade C

Citicoline

Studied for
Focus · Mental energy
Studied dose
250–500 mg daily in the branded-form trials; other trials used single 500–1000 mg doses in healthy volunteers, and 1–2 g daily in an older-adult memory trial.
Bacopa monnieri growing as a dense mat — thick, stalkless oval leaves in opposite pairs, with small pale five-lobed flowers
NootropicEvidence: Grade B

Bacopa Monnieri

Studied for
Memory support · Learning over weeks
Studied dose
300–600 mg daily of a standardized extract (commonly ~50% bacosides).
AdaptogenEvidence: Grade C

Rhodiola Rosea

Studied for
Stress-related fatigue under sustained pressure (night shifts, exam-type load) · Sustained output when already under stress or fatigue
Studied dose
100–170 mg daily of the SHR-5 standardized extract in the trials cited here; the wider literature spans roughly 100–600 mg daily.

Foundational base layer

The base layer most focus stacks skip.

Vitamin D3 and a B-complex support the foundations cognition runs on (vitamin D status and normal nervous-system function), so the actives aren't layered over a gap. We're deliberate about what these are: foundational nutrients, not cognitive actives, and they carry no cognition claim.

VitaminEvidence: Grade C

B-Complex (B6, B9, B12)

Studied for
Foundational neurological and metabolic support · Older adults or low dietary B intake
Studied dose
Studied ranges: B6 ~10–20 mg/day (keep low: neuropathy risk), folate 400–800 mcg DFE/day, B12 5–500 mcg/day.
VitaminEvidence: Grade C

Vitamin D3

Studied for
Foundational nutritional support · Correcting or preventing low vitamin D status
Studied dose
1,000–2,000 IU (25–50 mcg) daily for maintenance; up to the 4,000 IU (100 mcg) adult upper limit under guidance. Canadian non-prescription monograph routes cap lower; see label tips.

Early access

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when Core is ready.

Waitlist members get formulation updates, ingredient research, and first access at launch.

Free guide on signupEarly access at launch

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