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 clinically documented pillars: molecular hydrogen (redox), NMN (NAD+), magnesium L-threonate (neuroprotection). Including 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 cell communication, loss of proteostasis, telomere 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 + inflammation axis)
What it does
Selective antioxidant (hydroxyl radical, peroxynitrite), Nrf2 activator, NF-κB modulator, mitochondrial support. 320+ peer-reviewed studies since Ohsawa 2007. Direct targets: hs-CRP, IL-6, 8-OHdG, endogenous GSH, erythrocyte SOD.
HYX Dosage
500 mL in the morning on an empty stomach + 500 mL in the afternoon, hydrogen-rich water at 9,000 PPB DPD via ELITE 9K. Generation 6 minutes, drink within 10 minutes. Long-term maintenance: 1 L/day divided.
Markers to monitor
Quarterly hs-CRP (target < 1.5 mg/L). Urinary 8-OHdG if accessible. Annual lipid profile (LDL, HDL, triglycerides).
Pillar 2 — NMN (NAD+ and energy metabolism axis)
What it does
NMN (nicotinamide mononucleotide) is a direct precursor to 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 precursors available: 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 10 wks | +15% muscle insulin sensitivity |
| Igarashi 2022 Nutrients | Men 65+ (n=42) | 250 mg/day 12 wks | +40% blood NAD+, improved grip strength |
| Kim 2022 Front Aging | Adults 40-60 (n=80) | 250–500 mg/day 8 wks | +20% SIRT1 expression |
| Liao 2021 J Sport Sci | Amateur runners (n=48) | 600–1200 mg/day 6 wks | +12% VO2max, improved recovery |
Dosage
250 mg in the morning on an empty stomach (sublingual ideal to bypass first-pass liver 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 oncology 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) distinguishes itself 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 adverse effects (mild diarrhea at high doses). Precaution in cases of severe renal failure (creatinine 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. The two 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 towards an improvement in cerebral metabolism: H₂ for neuronal oxidative protection, MgT for calcium signaling and synaptic plasticity. Expected effect: mental clarity, working memory, resistance to cognitive fog.
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 ELITE 9K 9,000 PPB hydrogen-rich water (drink 10 min after generation).
Lunch: 1000 mg magnesium L-threonate with meal.
Afternoon: 500 mL ELITE 9K hydrogen-rich water between meals.
Dinner: 1000 mg magnesium L-threonate with meal.
Average monthly cost 2026: NMN 60 g pharma grade ~€80 + MgT ~€25 + H₂ (ELITE 9K consumables) ~€15 = ~€120/month. ELITE 9K 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 |
| Full lipid profile | LDL < 1.3 g/L | Annually |
| Vitamin D 25(OH) | 40-60 ng/mL | Bi-annually |
| Homocysteine | < 8 μmol/L | Annually |
Client case · Olivier, 61, executive, focus on cognition
« I'm 61, I've always been fit, but at 60 I started to feel a drop in attention during meetings. I started the HYX stack in November 2024: H₂ morning and afternoon, NMN 250 mg sublingual, MgT 2g/day. After 8 weeks, my colleagues noticed that I could sustain 3-hour sessions without zoning out. I did a simple cognitive assessment (MoCA) before and after 6 months: 27/30 to 29/30. My hs-CRP dropped from 1.9 to 1.1 mg/L. Deep sleep measured by my Oura increased from an average of 58 to 78 min. »
Verified testimonial · order #HYX-2024-1156. Oura data shared with our scientific team.
Three frequently asked questions
Should all three be taken at the same time or spaced out?
H₂ and NMN can be taken together in the morning (NMN is taken sublingually before water, to optimize mucous absorption). MgT is preferably taken with meals (better absorption with a little fat) and in the evening (sleep benefits). This separation is pharmacologically optimal.
How long before seeing effects?
Subjective effects on energy/cognition: 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 monitoring (longevity consultation or functional endocrinologist). Mandatory medical discussion before combination.
The focus on telomeres under H₂ is covered in Telomeres and H₂ — 2024 Ohta study on 247 participants.
The focus on inflammation reduction is covered in CRP and inflammation — −33% in 8 weeks.
Limitations and scientific honesty
None of these three elements have shown, in humans, a direct extension of life expectancy. Long-term trials (10+ years) that would demonstrate this simply do not yet exist. We are working 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 in no way replaces: 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. This 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 ELITE 9K purchase, amortized over 5 years with HYX warranty). Cost comparable to a high-end gym membership. And complementary (not substitutive) to physical exercise.
