The people who make it reliable — working scientists and clinicians, each accountable for the doses, the claims, and the way the report is run. Not influencers.
Food & nutrition engineering
Built and dosed products in R&D at Carrefour, the Mousquetaires group's central purchasing office in Geneva and Nestlé — more than 100 of them — then handled product formulation and led the launch and commercialisation in the United States. She makes sure every dose is real, usable and justified.
“Every dose has to defend itself.”
Neurosurgeon & regulation
A practising neurosurgeon who also works on the quality and regulation of food supplements in Belgium. She keeps the formula honest — clinically grounded and fully EU-compliant.
“Claims have to survive both EFSA and the lab.”
Actively recruiting
We're still looking for a research neuroscientist to lead the cognitive-performance measurement for the office report — turning daily self-report into hard, quantitative data.
“Self-report is the start. Data is the proof.”
The whole formula was created and locked under EU food-supplement regulation — twenty-one ingredients, every one with a defined role, grouped into three blocks.
Electrolytes & minerals
The signal your neurons fire with.
Vitamins
Energy metabolism & reduced fatigue.
Medicinal plants & aminos
Caffeine-free focus & drive.
Designed with our scientific advisory board, the report measures how — and when — your team performs across the working day. Quantitative cognitive games and qualitative self-assessment, turned into a clear picture of your team’s best hours.
01
A short baseline — daily 60-second self-assessment (focus, energy, fatigue) plus a weekly cognitive task.
02
One stick per working day. The same daily and weekly measures, now with the formula in play.
03
Cognitive games (memory, attention, reaction time) alongside self-reported focus, energy and calm.
04
How — and when — your team performs best, delivered as a clear, anonymised performance report.
The report is reserved for the first 30 offices to join — Q3–Q4 2026.
Try RYBL at workElectrolytes, bioactive vitamins and medicinal plants — no proprietary blends, no brand-name dressing. Just the actual compounds, the dose, and the mechanism each one contributes.
Caffeine-free alertness
A medicinal-plant rhizome standardised for its active phenolics. In a randomised, placebo-controlled trial it raised sustained attention and reaction speed for up to five hours after a single dose — without acting on adenosine receptors the way caffeine does. The result is alertness with no jitter, no tolerance build-up, and no crash to pay back.
Dopamine availability
Mangiferin is a polyphenol that inhibits COMT — the enzyme that clears dopamine and noradrenaline from the prefrontal cortex. Slowing that breakdown keeps more of your own motivational neurochemistry in play, so drive and focus hold for longer. A double-blind study showed improved reaction time and cognitive performance within an hour of dosing.
Calm attention
An amino acid from tea leaves that increases alpha-wave activity — the brainwave signature of relaxed, wakeful concentration. It takes the edge off without sedating, which is exactly why it pairs with the alertness actives: you keep the focus and lose the wired feeling.
Restocking the tank
The free-form precursor your body converts into dopamine and noradrenaline. Under heavy cognitive load or stress, those catecholamines deplete; supplying tyrosine helps replenish them — which a meta-analysis links to preserved performance precisely when the brain is working hardest.
The signal itself
Sodium and potassium carry the electrical signal every neuron fires with; magnesium supports ATP and a calm nervous system; zinc is the one mineral with an explicit EFSA cognitive-function claim. Even mild dehydration measurably degrades attention and working memory — so RYBL restores the ion balance the rest of the formula relies on.
The long game
Taken every working day, the B-complex and folate are in their bioactive forms — P5P, methyl-B12, 5-MTHF — usable by everyone, including the ~30% who poorly methylate the cheap precursors. They support normal energy-yielding metabolism, psychological function and the reduction of fatigue, with vitamin C and D3 completing the EFSA coverage.
Eighteen months of literature review, dose optimisation and regulatory clearance. Every ingredient has a defined role, a justified dose, and an EU-compliant claim path — or it’s not in the stick.
01
Systematic search across the human cognitive-performance literature for caffeine-free actives with replicated clinical signal.
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Each dose mapped to the studied effective dose; cross-checked against the EFSA tolerable upper intake and EU label maximums.
03
Pairs validated for additive (theanine + alpinia) or pathway-complementary (tyrosine + mangiferin) mechanisms.
04
Final formulation reviewed for compliance with EU 432/2012 and the cross-border claim register.
Mild dehydration (1–2 % of body weight) reliably impairs attention, working memory and executive function in controlled studies. RYBL's electrolyte stack restores the ion balance the brain depends on — sodium and potassium for neuronal signalling, magnesium for ATP and neuromuscular calm, zinc as the only mineral in the EU register with an explicit cognitive-function claim.
The flow state has a chemistry: enough dopamine to drive intention, not enough cortisol to fragment it. RYBL's focus stack — medicinal plants and amino acids — targets that window via four mechanisms operating in parallel: alpha-wave induction, COMT inhibition, caffeine-free psychostimulation, and catecholamine precursor loading.
RYBL is taken every working day. That means its B-complex and folate must be in their bioactive forms — not the cheap precursors that ~30 % of the population can't efficiently methylate. P5P, methyl-B12 and 5-MTHF are non-negotiable; vitamin C and D3 round out the EFSA-recognised psychological and immune coverage.
Medicinal plants are presented as ingredients — not as claim carriers — to stay fully EU-compliant. But every one of them has a clinical paper behind it.
| Ingredient | Paper | Journal · design | Key finding |
|---|---|---|---|
| Mango leaf extract (mangiferin) | Wightman et al., 2020 — Acute effects of a polyphenol-rich extract on cognitive performance. | Nutrients · double-blind, placebo-controlled | Improved reaction time and cognitive performance within 1 h of dose. |
| L-Theanine | Nobre, Rao & Owen, 2008 — L-theanine, a natural constituent of tea. | Asia Pacific J. Clin. Nutr. · EEG-confirmed | Increased alpha activity associated with attentional calm. |
| Alpinia galanga | Srivastava et al., 2017 — Mental alertness following standardised Alpinia galanga. | Journal of the American College of Nutrition · RCT | Sustained 5-hour increase in alertness without caffeine. |
| L-Tyrosine | Jongkees et al., 2015 — Effect of tyrosine supplementation under stress or cognitive demands. | Journal of Psychiatric Research · meta-analysis | Restores depleted catecholamines under cognitive load. |
| Magnesium (bisglycinate) | Boyle et al., 2017 — The effects of magnesium supplementation on subjective anxiety. | Nutrients · review | Consistent reduction in subjective tiredness markers. |
Health claims used on the RYBL site and packaging are limited to EFSA-recognised claims for vitamins and minerals. Medicinal-plant references above are presented for transparency and are not used as on-label efficacy claims.