The Source — the HYDROGENYX Journal
Anti-aging stack 2026: H₂ + NMN + magnesium L-threonate
Paul Fournier
Longevity is not the result of a single magic molecule but of an ecosystem of combined levers. This article details our 2026 stack based on three pillars studied in the literature: molecular hydrogen (redox), NMN (NAD+), magnesium L-threonate (neuroprotection). With dosages, synergies, and limitations.
Why a stack rather than an isolated supplement
Biological aging results from parallel mechanisms: oxidative stress, NAD+ decline, mitochondrial dysfunction, chronic inflammation, impaired cellular communication, loss of proteostasis, telomeric shortening, epigenetic modifications, cellular senescence, slowed protein turnover.
No single nutrient covers these 9 mechanisms simultaneously. This is why serious longevity protocols (Sinclair, Attia, Greger) recommend a diversified, targeted stack. Our 2026 stack targets three critical axes with a solid accumulation of data.
Pillar 1 — Molecular hydrogen (redox axis)
What it does
Studied as a selective antioxidant (it preferentially targets hydroxyl radical and peroxynitrite in vitro); research also explores the Nrf2 pathway and mitochondrial function. Several hundred studies published since Ohsawa 2007 (Nature Medicine). These works focus on markers such as CRP, IL-6 or 8-OHdG — results observed in studies, on specific populations, not a promise of individual results.
HYX Dosage
500 mL in the morning on an empty stomach + 500 mL in the afternoon, HYDROGENYX Flask hydrogenated water (up to 9,000 PPB announced by the manufacturer, DPD reagent control per batch, filmed measurement). 6-minute generation, drink within 10 minutes. Long-term maintenance: 1 L/day fractionated.
Markers to follow
Quarterly hs-CRP (target < 1.5 mg/L). Urinary 8-OHdG if accessible. Annual lipid profile (LDL, HDL, triglycerides).
Pillar 2 — NMN (NAD+ axis and energy metabolism)
What it does
NMN (nicotinamide mononucleotide) is a direct precursor of NAD+ (nicotinamide adenine dinucleotide). NAD+ is the essential cofactor for hundreds of mitochondrial enzymes and sirtuins (SIRT1-7), central factors in longevity. NAD+ declines drastically with age: -50% between 20 and 60 years in skeletal muscle, -65% in the brain.
Restoring NAD+ levels is one of the most studied areas in gerontology 2020-2025. Three available precursors: NMN, NR (nicotinamide riboside), niacinamide. NMN is the closest in terms of structure (1 enzymatic reaction to convert it to NAD+).
Clinical evidence
| Study | Population | Dose | Results |
|---|---|---|---|
| Yoshino 2021 Science | Prediabetic women (n=25) | 250 mg/day for 10 weeks | +15% muscle insulin sensitivity |
| Igarashi 2022 Nutrients | Men 65+ (n=42) | 250 mg/day for 12 weeks | +40% blood NAD+, improved grip strength |
| Kim 2022 Front Aging | Adults 40-60 (n=80) | 250–500 mg/day for 8 weeks | +20% SIRT1 expression |
| Liao 2021 J Sport Sci | Amateur runners (n=48) | 600–1200 mg/day for 6 weeks | +12% VO2max, improved recovery |
Dosage
250 mg in the morning on an empty stomach (sublingual ideal to bypass first-pass hepatic metabolism). Increase to 500 mg after 4 weeks if well tolerated. Long-term maintenance: 250-500 mg/day.
Safety
Well-tolerated profile up to 1200 mg/day in trials. No major documented drug interactions. Precaution: some oncological protocols are sensitive to NAD+ modifications: discuss with your oncologist if you have active cancer.
Pillar 3 — Magnesium L-threonate (neuroprotection axis)
What it does
Magnesium is a cofactor for 300+ enzymes. It is essential for neuronal function, synaptic plasticity, and intracellular calcium regulation. Magnesium deficiency is one of the most common deficiencies in the West (60 to 80% of the population has suboptimal intake).
Magnesium L-threonate (MgT) differs from other forms (citrate, glycinate, oxide, malate) by its unique ability to cross the blood-brain barrier and increase brain magnesium. It is the only form documented for this effect (Slutsky 2010 MIT, replicated in human clinical trials 2016-2023).
Clinical evidence
Liu 2016 (University of Chicago) on 44 adults aged 50-70, 1500-2000 mg MgT/day for 12 weeks: significant improvement in cognitive functions measured by 4 neuropsychological tests (working memory, processing speed, sustained attention, executive functions). Equivalent to an average cognitive rejuvenation of 9 years.
Several more recent studies (Sun 2020, Wang 2023) confirm the effect on declarative memory and memory consolidation during sleep. MgT is now integrated into several MCI (Mild Cognitive Impairment) protocols on an experimental basis.
Dosage
1500-2000 mg of MgT per day, in 2 doses (midday and evening). Equivalent to approximately 144 mg of elemental magnesium. Take with meals to optimize absorption. Evening intake promotes memory consolidation during sleep and subjectively improves deep sleep quality.
Safety
Excellent profile. Rare side effects (mild diarrhea at high doses). Precaution in case of severe renal insufficiency (clearance < 30 mL/min). No major drug interactions at recommended doses.
Synergies of the 3 pillars
Why this combination rather than another? Three documentable synergies:
Synergy 1 — H₂ and NMN (redox-NAD+ axis)
NMN increases NAD+ and activates sirtuins (especially mitochondrial SIRT3). SIRT3 increases the production of SOD2 (mitochondrial superoxide dismutase), which produces H₂O₂ as a byproduct. H₂ neutralizes these secondary ROS and preserves mitochondrial function optimized by NMN. Both tools potentiate their mutual effect on overall mitochondrial quality.
Synergy 2 — H₂ and magnesium L-threonate (neuroprotection axis)
H₂ crosses the blood-brain barrier (molecular weight 2 Da, the smallest biological gas). MgT increases brain magnesium. Both converge on improving brain metabolism: H₂ for neuronal oxidative protection, MgT for calcium signaling and synaptic plasticity. Research avenues explored: clarity, working memory. Results observed in studies, not a promise of individual results.
Synergy 3 — NMN and MgT (brain aging axis)
SIRT1 (activated by NAD+) modulates the expression of NMDA receptors whose function depends on magnesium. MgT and NMN converge on synaptic optimization. This synergy is one of the bases of the "NAD+ & minerals" cognitive anti-aging protocol promoted by several American longevity clinics.
The complete 2026 protocol
HYDROGENYX cognitive longevity protocol 2026
Morning on an empty stomach: 250 mg sublingual NMN + 500 mL HYDROGENYX Flask 9,000 PPB hydrogenated water (drink 10 min after generation).
Lunch: 1000 mg magnesium L-threonate with meal.
Afternoon: 500 mL HYDROGENYX Flask hydrogenated water between meals.
Dinner: 1000 mg magnesium L-threonate with meal.
Average monthly cost 2026: NMN 60 g pharma quality ~€80 + MgT ~€25 + H₂ (HYDROGENYX Flask consumables) ~€15 = ~€120/month. HYDROGENYX Flask as a one-time initial investment.
Recommended biological monitoring
| Marker | Target | Frequency |
|---|---|---|
| hs-CRP | < 1.5 mg/L | Quarterly first year |
| HbA1c | < 5.5% | Annually |
| HOMA-IR | < 1.5 | Annually |
| Blood NAD+ (if available) | > 30 μM | Every 6 months |
| Erythrocyte magnesium | > 2.0 mEq/L | Annually |
| Complete lipid profile | LDL < 1.3 g/L | Annually |
| Vitamin D 25(OH) | 40-60 ng/mL | Bi-annually |
| Homocysteine | < 8 μmol/L | Annually |
What to expect — and not to expect
The effects described in the literature concern energy, recovery, clarity, and hydration, at varying time scales (often 4 to 12 weeks). These are results observed in studies, on specific populations — not a promise of individual results. Feelings vary from person to person.
Three frequently asked questions
Should I take all 3 at the same time or spread them out?
H₂ and NMN can be taken together in the morning (NMN is taken sublingually before water, to optimize mucosal absorption). MgT is preferably taken with meals (better absorption with a little fat) and in the evening (sleep benefit). This separation is pharmacologically optimal.
How long before seeing effects?
Subjective energy/cognition effects: 2 to 4 weeks for NMN, 3 to 6 weeks for MgT, 4 to 8 weeks for H₂. Objective effects on biomarkers: 8 to 12 weeks minimum. Long-term effects on chronic disease risk: hypothetical, to be documented over durations > 5 years (not yet observed in human cohorts).
Can it be combined with off-label metformin, rapamycin, or peptides?
Theoretically, yes: these interventions target different axes (insulin/glucose for metformin, mTOR for rapamycin, specific functions for peptides). In practice, these interventions require specialized medical follow-up (longevity consultation or endocrino-functional doctor). Medical discussion is mandatory before combination.
The focus on telomeres under H₂ is covered in Telomeres and molecular hydrogen — what research says.
The focus on inflammation reduction is covered in CRP and inflammation — what research observes.
Limitations and scientific honesty
None of these three elements has shown, in humans, a direct increase in life expectancy. Long-term trials (10+ years) that would demonstrate this simply do not yet exist. We work on intermediate biomarkers (NAD+, CRP, cognitive function) and extrapolations from animal models and preclinical literature.
This stack is not a promise of youth. It is a rational protocol, based on established mechanisms and solid intermediate data. It does not replace in any way: regular physical exercise (the most documented lever in longevity), deep sleep, Mediterranean diet, strong social connections, chronic stress management. These 5 behavioral pillars remain the foundation.
Conclusion
The H₂ + NMN + MgT stack targets three critical axes of aging — redox/inflammation, NAD+/energy metabolism, neuroprotection — with a rational convergence of mechanisms. It is, in our reading of the 2026 literature, one of the best-supported tripods for an accessible and well-tolerated cognitive longevity protocol.
Total average annual investment ~€1,400 (excluding initial HYDROGENYX Flask purchase, amortized over 5 years with HYX warranty). Cost comparable to a high-end gym membership. And complementary (not substitutive) to physical exercise.
HYDROGENYX Flask
The hydrogen ritual, ready in 5 minutes.
Up to ~9,000 ppb of dissolved molecular hydrogen (manufacturer's data), verifiable at home with a DPD test. 400 ml, touch screen, wireless charging base included.
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The HYDROGENYX Flask is a water preparation device, not a medical device. It does not prevent, treat, or cure any disease.
To go further: the science of hydrogen · the comparison · the FAQ
