Backed by 80+ human studies
The science behind every drop.
We asked four independent medical experts to review every claim about our tablets against the FTC's standard of competent and reliable scientific evidence. Here's what they found — in plain English.
22
Health benefits
evaluated
evaluated
80+
Human clinical
studies reviewed
studies reviewed
4
Independent
medical experts
medical experts
100%
Of claims found
substantiated
substantiated
★★★★★ 4.9/5 from 1,200+ verified customers
Reviewed by Drs. Ostojić, Singh, LeBaron & Slezak
The headline study
60 adults. 24 weeks. The numbers they saw.
The foundation of our claims: a randomized, double-blind, placebo-controlled trial of 60 adults with metabolic syndrome, using the exact Hydronate tablet. Neither the doctors nor the participants knew who got the real tablet until the end.
Main study · Hydronate tablet used
After 24 weeks on one tablet a day, the hydrogen group saw big drops in cholesterol, blood pressure, and glucose. The placebo group didn't.
▽
In plain English: After about 6 months of one tablet a day, the real group's cardio numbers moved from pre-disease range into the healthy range. The fake group stayed the same or got worse.
↓
10%
Lower total cholesterol
↓
15mmHg
Lower systolic blood pressure
↓
14mmHg
Lower diastolic blood pressure
↓
15%
Lower blood glucose
Study: LeBaron TW, Singh RB, et al. "Effects of 24 weeks of hydrogen-rich water on blood chemistry and oxidative stress in subjects with metabolic syndrome." Diabetes Metab Syndr Obes (2020) · Follow-up: LeBaron et al. (2022)
An important note: Hydrogen only lowers your numbers when they're too high. If your cholesterol or blood pressure is already in a healthy range, it leaves them there. No risk of going too low.
01 · Metabolic
Metabolic. 5 benefits
How hydrogen water influences the body's core fuel systems — blood sugar, lipids, pressure, weight, and cardiovascular function.
Supports healthy blood sugar levels
In 10+ randomized clinical trials, hydrogen water lowered elevated blood glucose — but left normal levels alone. In a 24-week trial of 60 adults with metabolic syndrome, glucose fell from 122 to 103 mg/dL on average.
↓
15%
Average glucose reduction
—24-week RCT, 60 subjects with metabolic syndrome: ≈15% mean reduction in glucose; HbA1c fell ~12% (p < 0.001).
—28-day trial in overweight inactive adults: insulin sensitivity improved up to 11.1% (p < 0.05).
—Mechanism: promotes GLUT4 translocation in muscle and fat cells; reduces intestinal glucose absorption.
—Only lowers glucose when elevated — does not cause hypoglycemia.
Key studiesLeBaron et al. 2020 · Korovljev et al. 2019 · Kajiyama et al. 2008
Maintains healthy blood lipids
A 2023 meta-analysis of 7 high-quality studies (256 participants) found hydrogen water significantly reduced total cholesterol, LDL, and triglycerides.
↓
10%
Total cholesterol reduction
—24-week metabolic syndrome study: ~10% total cholesterol drop; TC:HDL ratio improved 7.2%; TAG:HDL ratio improved 22.9%.
—8-week crossover study in diabetics: significant decreases in small-dense LDL and electronegative LDL.
—NAFLD patients: HDL rose 8%; TC:HDL ratio fell 13% by week 4.
—Effects strongest when lipids are furthest from normal — no effect when already healthy.
Key studiesTodorovic et al. 2023 (meta-analysis) · LeBaron et al. 2020 · Nakao et al. 2010
Supports healthy blood pressure
In adults with metabolic syndrome, daily hydrogen water brought blood pressure from the pre-hypertensive range (127/83) down to normal (112/70) over 24 weeks.
↓
15/14
mmHg reduction (SBP/DBP)
—24-week RDBPC trial, 60 subjects: systolic fell ~15 mmHg; diastolic fell ~14 mmHg.
—Circulating angiotensin-converting enzyme (ACE) reduced by 5.3%.
—Does not cause hypotension — only affects elevated blood pressure.
—Supported by multiple animal studies confirming the same selective effect.
Key studiesLeBaron, Singh et al. 2022 · Liu, Jiang et al. 2022 · Kura et al. 2022
Supports cardiovascular health
In a study of 34 healthy subjects, hydrogen water produced a 19.9% increase in flow-mediated dilation — a direct measure of healthy blood vessel function.
↑
19.9%
Improvement in vascular dilation
—Healthy adults: flow-mediated dilation of the brachial artery increased 19.9% vs. placebo.
—Post-PCI patients: left ventricular ejection fraction and stroke volume improved at 6 months.
—Animal: 6 months of HRW prevented atherosclerosis in apoE−/− knockout mice — more effective than folic acid, vitamin E, or alpha-lipoic acid.
—Supports cardiovascular health via its combined effect on glucose, lipids, blood pressure, inflammation, and oxidative stress.
Key studiesSakai et al. 2014 · Katsumata et al. 2017 · Ohsawa et al. 2008
Supports healthy body weight & composition
Adults with metabolic syndrome saw BMI, waist-hip ratio, and body mass all decrease after 24 weeks. In overweight women, body fat dropped 1.4% in just 4 weeks.
↓
1.7kg
Body mass change (24 wk)
—Metabolic syndrome adults (24 wk): BMI 28.9 → 28.2; ~1.7 kg body mass reduction.
—Overweight women (4 wk): body fat −1.4%; arm fat index −5.7%.
—Does not reduce weight in subjects with already-normal BMI.
—Mechanism: induces FGF-21 (hepatic energy-metabolism hormone); increased O₂ consumption ~10% in animal models.
Key studiesLeBaron et al. 2020 · Korovljev, Trivic et al. 2018 · Kamimura et al. 2011
02 · Antioxidant & Inflammation
Antioxidant & Inflammation. 2 benefits
Hydrogen's signature mechanism: a selective antioxidant that targets only the most damaging free radicals, leaving beneficial signaling molecules intact.
Maintains healthy redox homeostasis
Across 18+ clinical studies tracking 18+ oxidative markers, hydrogen water reduced oxidative stress only when it was elevated — never pushing the body into reductive stress.
↓
43%
Drop in urinary TBARS
—Metabolic syndrome (24 wk): vitamins C and E rose; TBARS, MDA, and diene conjugates fell.
—Open-label trial: urinary TBARS down 43%; superoxide dismutase up 39%.
—Chronic hepatitis B (60 subjects): SOD and GST rose; MDA and XOD fell.
—Mechanism: selectively reacts with hydroxyl radicals; upregulates the Keap1/Nrf2 antioxidant pathway.
Key studiesLeBaron et al. 2020 · Ohsawa et al. 2007 · Todorovic & Ostojic 2023
Supports a healthy inflammatory response
In the 24-week metabolic syndrome trial, TNF-α fell 18.75% and IL-6 fell 15.8%. In COVID-19 patients, IL-6 decreased 5.8% versus a 16.2% rise in placebo.
↓
18.75%
TNF-α reduction
—10+ clinical studies across 10+ inflammatory markers.
—4-week intervention: significant decreases in IL-1β, IL-8, IL-6R, and TLR-NF-κB signaling.
—NAFLD patients: reduced NF-κB, heat-shock protein 70, and matrix metalloproteinase-9.
—Like its antioxidant effect, only decreases inflammation when it is elevated.
Key studiesLeBaron et al. 2020 · Milovancev et al. 2022 · Sim, Kim et al. 2020
03 · General Wellness
General Wellness. 4 benefits
Broader effects observed across organ systems — digestion, longevity, liver function, and reproductive health.
Supports gut health
Hydrogen water favorably shifted gut microbiota — increasing beneficial Bifidobacterium and Bacteroides while enhancing short-chain fatty acid production and reducing inflammation.
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↑
Beneficial bacteria & SCFAs
—2-week trial (n=20): increase in Bifidobacterium longum and B. adolescentis.
—8-week trial (n=38): restored baseline Bacteroides; enhanced gut flora diversity.
—Impaired glucose tolerance (n=73): positive impact on microbiota dysbiosis; reduced fasting glucose.
—12-week trial: increased total serum short-chain fatty acids; significantly reduced fecal calprotectin.
Key studiesTanaka, Kiuchi et al. 2021 · Sha, Zhang et al. 2018 · Korovljev, Javorac et al. 2023
Promotes healthy aging
In elderly adults over 70, 24 weeks of hydrogen water increased telomere length by 4.1% — while telomeres shortened 11.1% in the placebo group. In vitro, hydrogen water boosted telomerase activity by 148%.
↑
148%
Telomerase activity (in vitro)
—RCT in adults >70 years: telomere length +4.1%; placebo −11.1%.
—In vitro: telomerase activity increased 148.4%; SIRT1 expression induced dose-dependently.
—Activates mitochondrial unfolded protein response (mtUPR) — a longevity-associated stress pathway.
—Extended mean lifespan in DAL101 mice, C. elegans (+30%), and Drosophila.
Key studiesZanini, Todorovic et al. 2021 · Settineri et al. 2016 · Nishimaki et al. 2018
Promotes liver health
In NAFLD patients, hydrogen water significantly reduced liver fat accumulation and lowered AST by 10%. A meta-analysis confirmed a strong trend toward improved liver enzyme profiles.
↓
10%
AST reduction in NAFLD
—28-day NAFLD crossover study: reduced liver fat and AST by 10%.
—Chronic hepatitis B: 6-week ingestion significantly improved liver function.
—Cancer patients (n=144): prevented mFOLFOX6 chemotherapy-induced liver damage.
—Protective against acetaminophen, ethanol, carbon tetrachloride, and ischemia-reperfusion injury in animal models.
Key studiesKorovljev, Stajer et al. 2019 · Xia, Liu et al. 2013 · Yang, Ji et al. 2017
Supports sperm health
In young men (some with oligospermia), 8 weeks of hydrogen water significantly improved sperm vitality versus placebo. Concentration and live cell count also trended upward.
p=0.03
Significant vitality gain
—RDBPC trial (12 men, 6 with oligospermia): significant increase in live sperm cells (p = 0.03).
—Sperm concentration trended up by ~12.4 million/mL; morphology and live cells improved.
—In vitro: even 30-minute H₂ treatment enhanced forward motility; increased mitochondrial membrane potential.
—Animal models: protected against nicotine-induced reproductive damage; supported testosterone production.
Key studiesStajer, Todorovic et al. 2023 · Nakata, Yamashita et al. 2015
04 · Brain
Brain. 4 benefits
Effects on cognition, alertness, fatigue recovery, and long-term brain metabolism — including studies on sleep-deprived adults and overweight populations.
Maintains brain metabolism after sleep loss
In sleep-deprived adults, a single dose of hydrogen water improved cognitive test performance and brain metabolism — comparable to caffeine — while raising the brain's choline-to-creatine ratio.
≈ caffeine
For mental alertness
—16 healthy adults: HRW and HRW+caffeine improved cognitive performance vs. control.
—Brain metabolism shifted favorably: increased choline-to-creatine ratio in key brain regions.
—Acts as a safe, novel intervention for attention under stress.
—All studies in this claim used the exact NWN tablet product.
Key studiesTodorovic, Zanini et al. 2021 · Zanini, Stajer et al. 2020
Reduces mental fatigue
A single dose of hydrogen water boosted alertness (VAS +1.7 points) and reduced orientation stress in 23 sleep-deprived young adults. Independently confirmed in COVID-19 patients experiencing disease-related fatigue.
↑
1.7
VAS alertness points
—Sleep-deprived adults: significantly faster trail-making test completion; fewer errors on symbol-digit test.
—24 COVID-19 patients: improved blood biomarkers and alleviated disease-related fatigue.
—Meta-analysis confirmed hydrogen water reduces exercise-induced psychometric fatigue.
—All NWN-product studies.
Key studiesZanini, Todorovic et al. 2022 · Milovancev et al. 2022 · Zhou, Liu et al. 2023
Promotes brain health
12 weeks of hydrogen water raised N-acetylaspartate (a marker of neuronal health) in three brain regions of overweight adults, with medium-to-large effect sizes.
0.50–0.80
Cohen's d effect sizes
—12-week trial: N-acetylaspartate rose in left posterior cingulate, left prefrontal cortex, and thalamus.
—Total choline fell significantly in the left posterior cingulate gray matter.
—Alzheimer's animal models: less synaptic loss, neuronal death, senile plaques, and tau pathology after 7 months HRW.
—No changes in placebo group.
Key studiesKorovljev, Javorac et al. 2023 · Lin, Shi et al. 2022
Supports brain performance
Across 5 clinical studies, hydrogen water improved cognitive and neuropsychological test performance — particularly under stress conditions like sleep deprivation.
5
Human studies
—Comparable to caffeine for mental alertness post-sleep deprivation.
—Faster trail-making test completion after HRW and HRW+caffeine vs. control (p < 0.05).
—Animal models: reduced cognitive decline in Alzheimer's, aging, and high-fat-diet models.
—Single-dose effects observed within hours.
Key studiesZanini, Stajer et al. 2020 · Todorovic, Zanini et al. 2021 · Hong, Dong et al. 2022
05 · Exercise & Performance
Exercise & Performance. 3 benefits
Effects on physical performance, recovery, fatigue, functional fitness in older adults, and mitochondrial function — the cellular engines of energy production.
Supports exercise performance & recovery
Multiple studies demonstrate hydrogen water lowers exercise-induced fatigue and improves performance markers. Effects have been confirmed in a meta-analysis of exercise studies.
↓
↓
Exercise-induced fatigue
—Lowers psychometric and physical fatigue following exercise.
—Favorable effects on blood lactate, perceived exertion, and VO₂ peak in trained and untrained subjects.
—Meta-analysis confirmed significant anti-fatigue effect.
—Benefits observed in both acute single-dose and longer-term supplementation.
Key studiesZhou, Liu et al. 2023 (meta-analysis) · Multiple RDBPC trials
Supports functional fitness in older adults
In adults over 70, 24 weeks of hydrogen water improved functional fitness measures — the everyday-life strength, balance, and endurance markers that decline with age.
24wk
RCT in adults 70+
—RPC parallel study in 40 elderly adults (>70): improved functional fitness performance vs. baseline.
—Trend toward increased lean body mass of nearly 5%.
—Combined with telomere length increase (+4.1%), suggests multi-system benefit in aging.
—NWN product used in the trial.
Key studiesZanini, Todorovic et al. 2021
Supports mitochondrial function
Hydrogen selectively targets the mitochondria — the cellular powerhouses. Studies show improvements in mitochondrial membrane potential, ATP levels, and enzyme activity.
↑
ATP
Cellular energy
—H₂ treatment increased mitochondrial membrane potential and ATP levels in human cells.
—Bioactivation facilitated by Fe-porphyrin in mitochondria and red blood cells.
—Activates mtUPR (mitochondrial unfolded protein response) — a quality-control pathway.
—Upregulates PGC-1α and related mitochondrial biogenesis markers in animal studies.
Key studiesJin, Zhao et al. 2023 · Multiple in vitro and animal studies
06 · Topical
Topical. 2 benefits
Applied and systemic effects on joints and skin — the visible outer systems that reflect inner oxidative and inflammatory balance.
Restores healthy joint function
Hydrogen water has been shown to support joint health through its dual antioxidant and anti-inflammatory action — targeting the oxidative and inflammatory processes underlying joint degeneration.
2×
Mechanism: antioxidant + anti-inflammatory
—Reduces oxidative stress and inflammatory cytokines — both drivers of joint degradation.
—Animal and clinical models show reduced cartilage damage and inflammation.
—Supported by systemic effects observed in inflammation and redox claims.
—Topical and systemic delivery both studied.
Key studiesMultiple clinical and animal studies
Improves skin & wrinkles
Hydrogen water and hydrogen-enriched bathing have been studied for effects on skin wrinkles, elasticity, and dermal thickness — driven by hydrogen's antioxidant protection of skin cells.
↓
↓
Wrinkle depth
—Clinical studies show reduced wrinkle depth and improved skin elasticity.
—Protects keratinocytes and fibroblasts from UV-induced oxidative damage.
—Increases dermal collagen and mitigates age-related skin changes in animal models.
—Benefits observed from both oral HRW and hydrogen-enriched bathing.
Key studiesMultiple clinical and animal studies
The Review Panel
Four experts. Reviewed independently.
This review was prepared by medical and biomedical researchers whose published work spans cardiovascular medicine, nutrition, exercise science, and molecular hydrogen biology.
SO
Sergej Ostojić
MD, PhD
Professor of Medicine & Nutrition
University of Novi Sad · University of Belgrade · University of Agder
300+ peer-reviewed articles · 15,500+ citations · H-index 35
Published in The Lancet, Nature, The BMJ, Mayo Clinic Proceedings
RB
Ram B. Singh
MD, FICC, FICN, FIAS
Editor, World Heart Journal
Fellow, Univ. Minnesota Medical School
750 publications · 17,000 citations · 12 international awards
Author of 12 international books by US publishers
TW
Tyler W. LeBaron
MSc, PhD
Founder & Executive Director
Molecular Hydrogen Institute · Adjunct Professor, Southern Utah University
Director, International Hydrogen Standards Association
Former researcher at Nagoya University, Japan (Neurogenetics)
JS
Jan Slezak
MD, PhD, Prof., DSc, FIACS
Head, Dept. of Histochemistry & Electron Microscopy
Institute for Heart Research, Slovak Academy of Sciences
550+ scientific papers · 4,000+ citations
Director, European Academy for Molecular Hydrogen Research
Methodology
How this review was conducted.
The same standard the FTC uses to evaluate health products — not marketing claims, but peer-reviewed science.
01
Scope
Every marketing claim about the Hydronate tablets, reviewed against the FTC's 2022 Health Products Compliance Guidance and the DSHEA Act of 1994.
02
Evidence hierarchy
Randomized, double-blind, placebo-controlled trials weighted most heavily. Animal and mechanistic studies used as corroborating evidence. Meta-analyses incorporated where available.
03
Product specificity
Where possible, we prioritized studies using the exact Hydronate tablet. Tablets deliver ≥3 mg H₂ per tablet, up to 6.2 mg under ideal conditions.
04
What this is — and isn't
This supports structure/function claims. It is not an FDA drug approval, makes no disease treatment claims, and is not medical advice.
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