H₂Blue is a reagent designed to detect the presence of dissolved hydrogen gas, the therapeutic antioxidant in ionized water (as well as water from other devices which produce hydrogen-rich water). In the presence of dissolved hydrogen gas (H₂), the molecules contained in H₂Blue bond with the dissolved H₂ gas molecules, causing the H₂Blue molecules to turn "clear". When a drop of H₂Blue is added to water containing an adequate level of dissolved H₂ ( > 0.1ppm), the drop turns clear almost immediately. So-called "antioxidant" bottled waters will not cause H₂Blue to turn clear if they do not contain dissolved hydrogen gas.

When hydrogen water devices are new, they may produce good levels of dissolved hydrogen gas (H₂). But, as calcium contained in the source water begins to accumulate on the electrodes and plumbing, the dissolved hydrogen levels can begin to drop, sometimes in as little as a few weeks. By using H₂Blue to measure dissolved H₂ levels, you can be assured that your device is performing at peak levels. H₂Blue can also be used to measure the dissolved H₂ levels in water produced by other devices including hydrogen tablets, magnesium sticks, and non-electric counter-top hydrogen-water generators.

The H₂Blue bottle contains 10 mL of reagent and will dispense approximately 400 drops (a typical test for dissolved hydrogen gas will take between 4 and 10 drops). Since bottle capacity is approximately 13 mL, it will not be completely full when received (bottles are filled to 10 mL +/- 0.1 mL using precision dispensing equipment). H₂Blue comes in an HDPE plastic bottle with a child-resistant cap. The H₂Blue bottle comes stored in a plastic graduated beaker with a screw cap. The beaker is used to measure the precise volume of hydrogen water (6 mL) required for accurate testing of dissolved H₂ levels. H₂Blue ​should be stored in a cool, dry place, and should be used within 12 months of purchase.

H₂Blue pH Range H₂Blue has been tested for performance accuracy in the pH range of 4 to 11. Although H₂Blue may still detect dissolved H₂  outside of this range, results may be skewed or reaction times altered.  

H₂Blue contains methylene blue, a compound used as a biological tissue dye. Therefore, H₂Blue can stain any surface it touches (possibly permanently, depending on porosity). It is recommended that surrounding surfaces be protected from inadvertent splashing when using it.  Use of a mild abrasive cleanser will usually remove the stain. Use soap & water to remove from skin.

H₂Blue is shipped in Europe and in Switzerland (3-7 days) by express courier. For different shipments and international addresses, please contact us.

H₂Blue is warranted to perform as described here for one year* from date of purchase. Please contact us using our Contact Page for more information.

*12-month Pro-Rata