Reishi mushroom
Ganoderma lucidum
Triterpenes + β-glucans with documented immunomodulatory and sleep-architecture effects. Several human RCTs at published doses.
8 WATCHING7 CITATIONS
FREE UK DELIVERY
on subscriptions
THIRD-PARTY TESTED
every batch, before it ships
MADE IN THE UK
GMP certified
CANCEL ANYTIME
two clicks, honoured
THE FORMULA - V6
Rōnin
One scoop. The whole base layer. Forty ingredients, the entire label published to the milligram - because “proprietary blend” is just a way of not telling you.
5.0 · 2 verified reviews£89.99£109.99/month · save £20
ONE LIFE · FIVE ARENAS
Desk on Monday. Salt on Saturday.
One formula, taken once, wherever the week goes. Every arena below opens the rows on the label that belong to it.
SOUND FAMILIAR?
Sound familiar? Here is what is in the pouch, and the dose.
AN HONEST COMPARISON
Compare us. Please.
A transparency brand should welcome the comparison shop. Here it is, with the receipts.
| RŌNIN | AG1 | DIY STACK | |
|---|---|---|---|
| Every active dose published | ✓ ALL 33 | ✗ PROPRIETARY BLENDS | ✓ BUT YOU MANAGE IT |
| Doses matched to the cited trials | ✓ PUBLISHED WITH THE TRIAL | PARTIAL | IF YOU RESEARCH EACH |
| Third-party tested | ✓ EVERY BATCH | CERTIFIED (INFORMED SPORT); BATCH COAS NOT PUBLISHED | VARIES BY BRAND |
| Ingredients | 40 - EVERY ONE DOSED | ~75 (DOSES HIDDEN) | AS MANY AS YOU BUY |
| Daily effort | ONE SCOOP | ONE SCOOP | 8-12 PRODUCTS, DAILY ADMIN |
| Price per day | £3.00 (£89.99/MO) | £3.20+ | £3.50-5.00+ |
| Made in | UK | NEW ZEALAND / US | MIXED, PER PRODUCT |
| Pressure tactics | NONE - YOUR CART WAITS | COUNTDOWNS + DISCOUNTS | N/A |
AG1 FIGURES FROM ITS PUBLIC PRICING, ITS LABEL AND THE INFORMED SPORT CERTIFIED-PRODUCT REGISTER, CHECKED JUL 2026, REVIEWED QUARTERLY. DIY = BUYING OUR 8 CORE ACTIVES SEPARATELY AT UK RETAIL.
THE TRANSPARENCY OATH
We publish the milligram.
Every dose declared. Every ingredient named and sourced. Every batch third-party tested. Every claim referenced to the study behind it. If we change the formula, the changelog says what and why.
Read the oath in full90 SECONDS WITH THE FOUNDERS
Why we built it
VIDEO: FOUNDER FILM - TOM & ASH, 90S, SUBTITLED
“Two dads, one post-natal class, and the same unanswered question: what actually works, at what dose? Nobody would tell us. So we published it ourselves.”
WATCHLIST - LIVE
What we are watching.
Ingredients earning their place in the next Rōnin formula. Screened for UK safety, weighed against the published evidence, judged on brand fit.
LIVE - LAST 12H ACTIVITY
Apigenin
Apigenin
Flavonoid with GABA-A receptor binding affinity; sleep-architecture RCTs are limited but converging. We are looking at the data, not the podcast.
8 WATCHING6 CITATIONS
Quercetin
Quercetin
Highest-evidence flavonoid in the antioxidant category - multiple meta-analyses on blood pressure + inflammatory markers. Bioavailability is the question.
8 WATCHING6 CITATIONS
Cordyceps militaris
Cordyceps militaris
Cordycepin + adenosine derivatives with VO2-max + endurance signal in small human trials. We only evaluate militaris (cultivated, reliable cordycepin content).
8 WATCHING8 CITATIONS
Lion’s mane powder
Hericium erinaceus
Strong mechanistic signal - Hericium erinaceus stimulates nerve growth factor (NGF). Human cognition RCTs are small but consistent. Watching for scale-up trials.
8 WATCHING3 CITATIONS
30 days.
To decide it is not for you.
Take Rōnin for a month. If it is not right for you, email us and we refund your first order in full. No return postage. No questions. No “retention specialist”. The risk is ours - that is what confidence in a formula looks like.
NO RETURN REQUIRED - FULL REFUND - HELLO@KOJO.LIFE - ONE EMAIL
The morning note
One honest email a day, with the sunrise: the morning’s field note from the journal, a line to keep, and a quiet minute outside before the day starts. No discounts, no noise - unsubscribe any time.