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 and Nestlé — over a thousand of them — then launched a brand of her own and sold it 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.
02
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.