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Tom & AshKōJō Nutrition Ltd
What Rōnin addresses
One formula. Seven systems supported. Each carries the dose the published research used.
Composed under pressure.
350 mg rhodiola
Stress & Cortisol
Sharp when it counts.
300 mg bacopa
Cognitive Performance
Gut that keeps up.
2 B CFU Bacillus coagulans
Gut Health
Drive that endures.
30 mg zinc
Hormonal Health
Built to defend.
600 mg NAC
Immune Defence
A heart for the long haul.
100 mg ubiquinol
Cardiovascular
The formula
Every milligram clinically dosed. Filter by system or scroll the full label.
Two grams of ceremonial matcha. Steady caffeine, smoothed by 240 mg of L-theanine. The wake-up that doesn’t crash at 2 PM.
£58.65/mo · subscribe & save 15% · cancel anytime
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We won't fake reviews to launch. When verified subscribers leave honest words, good, critical, and everything in between, this is where they'll live.
Tom & AshKōJō Nutrition Ltd
From the journal
Supplement science, ingredient deep-dives, and the research behind the formula.

Energy & Fatigue
The honest answer is that timing matters less than consistency — but it probably isn't irrelevant either. One small RCT found that...
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Hormonal Health
Biotin is one of the most purchased supplements in the UK, yet the clinical evidence for it in people who aren't deficient...
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Cardiovascular
DHA — the omega-3 fatty acid concentrated in brain tissue — makes up roughly 15–20% of the brain's total fatty acid content....
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