Hydrogen tablets generate hydrogen through a dissolving magnesium–acid reaction. As the reactive material breaks down, tablet manufacturers acknowledge this process can leave trace contaminants — including heavy metals — in the water. This is a category-wide characteristic of dissolving hydrogen tablets.
Hydrogen Machines systems use SPE/PEM membrane electrolysis, which produces hydrogen from purified water through a physical separation process. Nothing dissolves, nothing degrades, and purity can be independently verified at 99.991%.
RO‑Pure Water Powers Every Hydrogen Modality

Why RO-Pure Water Matters for All Hydrogen Systems
Tablets introduce contaminants. Only RO-pure water is safe.
Hydrogen tablets add reaction by-products and residue to whatever water they are dropped into — they purify nothing. RO-pure water from HERO Purity 200-110, hydrogenated electrolytically, is the clean alternative across every hydrogen modality: inhalation, bathing and drinking water.
Key Points
- Tablets rely on reactive material dissolving in water.
- Electrolysis separates hydrogen through a membrane.
- Tablets can leave trace contaminants, including heavy metals.
- Electrolysis introduces no reactive material into the water.
- Tablets cannot saturate a bath; machines can.
Related reading
- Hydrogen Wellness Systems Comparison (2026) — compare hydrogen inhalation, bath and water systems side by side.
- Hydrogen Bathing vs Hydrogen Tablets — full saturation-vs-dilution comparison.
- Hydrogen Water — how hydrogen water is produced and what to look for.
- Hydrogen Bathing — the complete guide to hydrogen bath systems.
Frequently asked questions
Educational content. Hydrogen Machines products are general wellness devices — not medical devices, and not intended to diagnose, treat, cure or prevent any disease.