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H2Blue Kit® | Hydrogen test drops with titration method 

  • Immediately determines the hydrogen content of water 
  • Test immediately after molecular hydrogen tablet dissolves into water
  • Every drop that discolors means 0.1 ppm (=100 ppb) of dissolved hydrogen gas
  • Add until water turns and stays blue

*Wear protective gloves and a wipeable surface as methylene blue is a very intensive dye. Keep out of reach of children.  Do not drink.


  • Laboratory test reagent-do not ingest.
  • Keep out of reach of children.
  • Keep only in the original container.
  • Do not get in eyes, on the skin, or on clothing.
  • IF ON SKIN: Wash with plenty of soap and water
  • IF IN EYES: Remove contact lenses, if present and easy; continue rinsing. If eye irritation persists, get medical advice/attention
  • IF INGESTED: Dilute immediately with water or milk. Induce vomiting. Call a physician.