H2Tab Molecular Hydrogen Tablets Unflavored
At a glance
Summary
H2Tab Molecular Hydrogen Tablets Unflavored scores 90/100. Dissolvable elemental-magnesium tablets that release molecular hydrogen into water — up to 12 ppm per tablet, 0 calories. The formula is short and the lab work is public: Light Labs' per-tablet panel (Aug 19, 2026) found lead at 0.06 µg — about 12.0% of California's daily limit — with arsenic, cadmium and mercury negligible and every pathogen screen non-detect. The tablet binder is non-GMO dextrose at under 1 g (0 calories) — a binder, not a sweetener — and the flavor is fruit-named natural flavor; neither counts against it. Made in the USA, GMP certified.
Contaminants 6
Source: Light Labs (accredited, ISO 17025) comprehensive testing report for H2Tab Molecular Hydrogen Tablets — Unflavored — heavy metals, microbials and minerals per tablet, last tested Aug 19, 2026; results approved by Lev Spivak-Birndorf, Lab Director. Public report: app.lightlabs.com/comprehensive-testing-report/1338/10862.
Lead 0.06 µg per tablet Trace
About 12.0% of California's 0.5 µg/day Prop 65 lead limit in a whole tablet — far below the threshold.
Light Labs heavy-metals panel, per-tablet basis, tested Aug 19, 2026.
Arsenic 0.03 µg per tablet Trace
About 0.3% of the 10 µg/day inorganic-arsenic limit — negligible.
Light Labs heavy-metals panel, per-tablet basis, tested Aug 19, 2026.
Cadmium 0.01 µg per tablet Trace
About 0.2% of California's 4.1 µg/day cadmium limit — negligible.
Light Labs heavy-metals panel, per-tablet basis, tested Aug 19, 2026.
Mercury 0.007 µg per tablet Trace
About 2.3% of California's 0.3 µg/day mercury limit — negligible.
Light Labs heavy-metals panel, per-tablet basis, tested Aug 19, 2026.
Pathogens (E. coli, Salmonella, S. aureus) Not detected Not detected
All three pathogen screens were non-detect.
Light Labs microbial panel, tested Aug 19, 2026.
Mold, yeast & total plate count < 300 / < 300 / < 3,000 CFU/g Not detected
Below the lab's reporting limits for a dry tablet.
Light Labs microbial panel, tested Aug 19, 2026.
Key ingredients 3
Elemental MagnesiumGood
The hydrogen source: reacts with water to release molecular hydrogen; 80 mg magnesium per tablet (19% DV) rides along.
See more about Elemental Magnesium →Non-GMO DextroseNeutral
Non-GMO dextrose used only as the tablet binder — under 1 g and 0 calories per tablet, not a sweetener dose.
See more about Non-GMO Dextrose →Malic, Tartaric & Adipic AcidNeutral
Food acids that drive the magnesium reaction; malic and tartaric are fruit acids, adipic is a synthesized acidulant also found in trace amounts in beets.
See more about Malic, Tartaric & Adipic Acid →Get the full breakdown in the Scout appTake Scout shopping
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