Energy & Fatigue
Energy starts at the cell.
5,000 mg creatine — full clinical dose
Proc. R. Soc. B · 2003
The Brief
Five minutes. The whole picture. Why most supplements fail you, what we built instead, and how to tell the difference before you pay.
Why your last supplement failed
of supplements are under-dosed.
Half-clinical doses. Full-clinical price tags.
hide doses in proprietary blends.
If you can't see the dose, you can't trust the dose.
more spent on marketing than formulation.
The product becomes the marketing. Not the other way.
One formula, eight pillars
Each pillar is supported by ingredients dosed at the level the original studies actually used.
Energy & Fatigue
Energy starts at the cell.
5,000 mg creatine — full clinical dose
Proc. R. Soc. B · 2003
Caffeine props it up. Eight hours later, the cliff. Real energy is not a stimulant — it is mitochondrial output. We dose for the floor, not the rush.
Key ingredients
Stop trading borrowed energy for next-day debt.
Explore the science
Stress & Cortisol
Stress has a measurable cost.
350 mg rhodiola — ≥3% rosavins
Planta Medica · 2009
Stress is not in your head. It is a measurable cortisol shift that costs you sleep, focus, and recovery — silently. Reset the baseline, not just the moment.
Key ingredients
Respond, do not react. Build the baseline that lets you choose.
Explore the science
Cognitive Performance
Focus erodes with age — and with bad form.
12 weeks to peak — bacopa, the honest curve
Psychopharmacology · 2001
Most nootropics promise overnight clarity. Honest research shows working memory improves on a 12-week curve. We dose for the long game.
Key ingredients
Rebuild the cognitive baseline you had at twenty-five.
Explore the science
Sleep Quality
Sleep architecture fails before duration.
2,000 mg glycine — onset, no sedation
J. Pharmacol. Sci. · 2012
Eight hours and still tired. The problem is not duration — it is architecture. Deep and REM cycles need the right inputs. Sedation is not restoration.
Key ingredients
Wake up actually rested. Not just done sleeping.
Explore the science
Hormonal Health
Testosterone declines. Most formulas ignore it.
D3 + Zinc — GB-NHC for normal testosterone levels
Horm. Metab. Res. · 2011
Testosterone in men over 30 drops about 1.6% per year. Most multivitamins are designed for someone half your age. The inputs that matter get left out.
Key ingredients
Optimise the variables you actually control.
Explore the science
Immune Defence
60% of UK adults are D-deficient by winter.
12% lower ARTI odds — BMJ IPD meta-analysis, n=11,321
BMJ · 2017
60% of UK adults are vitamin D deficient by winter. Your immune system depends on a year-round floor — not a panic supplement when you feel the first sniffle.
Key ingredients
Build a year-round floor, not a panic supplement.
Explore the science
Cardiovascular
Oxidative load builds silently.
100 mg ubiquinol — mitochondrial electron carrier
JACC HF · 2014
Oxidative load builds silently. By the time you have a number to worry about, the architecture has already changed. Defend your floor decades before you need to.
Key ingredients
The slow-burn variables — the ones nobody talks about until it is late.
Explore the science
Gut Health
Gut decides more than digestion.
2 B CFU Bacillus coagulans — IBS-D RCT-validated dose
J. Nutr. · 2009
Your microbiome regulates more than digestion — mood, immunity, cognition. Wrong inputs cost you everywhere. Most of the body serotonin is produced by enterochromaffin cells in the gut (Berger · Annu Rev Med 2009).
Key ingredients
Feed the trillion that feeds you.
Explore the scienceWho built this
Tom: clinical literature, three years of label-reading. Ash: a decade in high-cognitive-load work. Neither of us is an influencer. Neither of us licensed a formula off a shelf.
If you read the label, question the dose, and dismiss 99% of what's out there — you're the person we built this for.
Tom & Ash · KōJō founders

What to expect
Real biology has a curve. Anyone selling you results in 48 hours is selling you caffeine.
Week 1–2
Matcha + L-theanine within days. No cortisol spike, no 2 pm crash. Most people don't reach for the second coffee. The micronutrient floor begins to load.
Week 4–6
Consistent baseline between meals. Sleep architecture begins to shift — magnesium bisglycinate and glycine working on quality, not duration. Stress responses feel proportionate.
Week 8+
Sustained focus through long stretches. Recovery faster than your peers'. Creatine fully loaded. Most people only feel the difference when they stop.
Less noise. More proof.
£69 one-time. £58.65 on subscription — save 15% and get the Signature Bottle on first delivery.
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