Rōnin — Kōjō

Your morning coffee does one thing. This does 46.

Natural matcha energy. Clinical doses. Every ingredient published.

Formula V4.0
0

active ingredients. Every dose on the label.

No proprietary blends. No pixie-dusting. Every ingredient in its bioavailable form — methylcobalamin not cyanocobalamin, bisglycinate not oxide. Every dose backed by published research.

Explore the Formula

How it works.

Take daily, in the morning

One scoop (27g) with 300–400ml cold water. Ideally with food.

Mix and drink

Shakes clean. Tastes like yuzu and ginger. No chalky residue. No weird smell.

Build the baseline

Consistent daily intake is how nutrients compound. Most people quit before they feel anything. Don't.

Contains ~66mg caffeine from matcha. Not recommended in the afternoon for caffeine-sensitive individuals.

Natural matcha

Replace the crash.
Keep the ritual.

Your morning coffee is a ritual worth protecting. Kōjō includes natural matcha — ~66mg caffeine plus L-theanine plus EGCG. Sustained energy without the spike. No crash at 3pm. One scoop replaces the second coffee that was never doing you any favours.

See the full formula
~66mg
Natural caffeine per serving
A soft espresso equivalent. Enough to sharpen, not enough to spike.
L-Theanine
Paired with caffeine
The amino acid in matcha that smooths the caffeine curve. Calm focus, not jitter.
No crash
Sustained all afternoon
Slower caffeine release profile. Level energy — not a peak followed by a cliff.
Second coffee
  • Cortisol spike within 30 min
  • Adenosine masked, not cleared
  • Energy cliff by 2pm
  • Disrupted sleep architecture
One scoop of Kōjō
  • ~66mg caffeine + L-theanine: no cortisol spike
  • EGCG supports cerebral blood flow
  • 46 ingredients at clinical doses
  • No adenosine debt. Sleep intact.
Formula Transparency

NOTHING IS HIDDEN

Every ingredient named. Every dose published. Every batch verified by Certificate of Analysis. This is what most supplements won't show you.

Tom and Ash, founders of Kōjō
Our Story

We built this for ourselves first.

Tom spent years in the clinical literature — not as a practitioner, but as someone the category kept failing. Ash spent a decade in IT: high cognitive load, long hours, the kind of environment that depletes you slowly and refuses to announce itself. Both hit the same wall. Low energy, brain fog, supplements that looked credible on the label and did nothing in the body.

Tom had the science. Ash had the scepticism. Neither of them was an influencer. Neither licensed a white-label formula. Together, they built what neither could find on the market: every ingredient listed, every dose justified by published research, nothing behind a proprietary blend.

Meet the founders

What people are actually saying.

"I've tried AG1, Huel, three different multivitamins. Nothing stuck. This is the first supplement where I actually notice a difference after 3 weeks. The fact that every ingredient is listed with the dose — that's what sold me."

James R., 38 Finance Manager Using Kōjō for 4 months

"Two kids under 5, full-time job. I was running on empty. I was sceptical because every supplement says the same things. But the ingredient transparency and the fact that the founders actually use it daily — I decided to try. Month three now. I'm not going back."

Dan W., 41 Operations Director Using Kōjō for 3 months

"I'm the person who reads every label and dismisses 99% of supplements. This is the 1%. The doses are real. Niacinamide at 500mg, Creatine at 5g, Ubiquinol not ubiquinone — someone actually did their homework."

Marcus L., 35 Software Engineer Using Kōjō for 6 months

Individual results may vary.

Subscribe & Save

Consistency is the mechanism.

Nutrients compound over time. Subscribe for 15% off every order — £58.65 instead of £69 — and lock in the daily habit that makes the difference.

What subscribers get

  • 15% off every order Locked in

    Applied automatically on every order. Not a first-purchase hook — £58.65 instead of £69 for as long as you subscribe.

  • Kōjō stainless steel bottle Free · first order

    Brushed steel. Double-walled. The one you'll actually use every morning. Not a cheap plastic shaker — engineered to earn a permanent place on your desk.

  • Tom's weekly coaching videos

    Practical protocols from someone who applies them daily. Sleep architecture, stress management, movement — no influencer theatre, no generic advice you've already ignored.

  • Members-only content hub Exclusive

    Ingredient-level research breakdowns, formulation rationale, early access to v5.0. Pages that don't exist for anyone paying one-time.

  • The Kōjō community Members only

    People who've stopped chasing shortcuts and started building something real. A private community with a shared standard — not a chat group.

  • Cancel anytime

    No contracts. No cancellation fees. 30-day money-back guarantee on your first order. The only risk is waiting another month to start.

Kōjō Member Most popular
£ 58.65 /month

One-time: £69.00

Save 15% ≈ £1.96 / day
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