Because ethanol-based products are classified as "dangerous goods" by USDOT, international IATA, and other regulatory agencies worldwide (class III flammable), they are not permitted to be shipped via the US postal service (domestic & international) in ANY quantity. Other carriers (UPS/Fedex/DHL) require special hazmat training (with certification), packaging, labeling, and handling before consigners may offer them for shipping. In order to simplify the shipping process,  we developed the 
H2Blueeco formula, which 
does not contain ethanol, and is not classified as a dangerous material under US DOT or International (IATA) regulations. Therefore, there are no shipping restrictions for the H2Blueeco formula. When shipping within the domestic US, Alaska & Hawaii, orders will be sent using either USPS or Fedex, depending on destination and order size. For international orders, please see our Worldwide Retailer's Map for a retailer in your location, or Contact Us.


2Blue is warranted to perform as described here for one year* from date of purchase. In the event that you are dissatisfied with the product, we will replace it or issue a refund at our discretion. Shipping charges are not covered by warranty and are not refundable. Please  Contact Us  for more information.
*12-month Pro-Rata

Package Description

The H
2Blue bottle contains 10 mL of reagent, enough to perform approximately 35-40 tests (depending on your average H2 levels). Since the capacity of the bottle when empty is approximately 13 mL, it will not appear to be completely full when received (bottles are filled using precision dispensing equipment). H2Blue comes in an LDPE plastic bottle with a child-resistant cap. The H2Blue bottle comes stored in a plastic graduated beaker with a screw cap and includes an instruction card and stir wand. 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 10mL Bottle and Graduated Beaker

Traveling with H2Blue

2Blue contains methylene blue, a compound used as a biological tissue dye. When traveling with H2Blue (especially when flying), we recommend the following:

  *  be sure that the bottle cap is screwed on securely
  *  place the bottle in its original graduated beaker and securely tighten the beaker's cap
  *  place the beaker with bottle into a sealable zip-type bag and seal the bag securely

These precautions will help to ensure that, in case of a leak due to changes in pressure or excessive vibration, 
H2Blue will not escape and stain the surrounding areas.  


2Blue 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 skin, counter-tops, floors, clothing and other surrounding surfaces be protected from inadvertent splashing during use.  The user should wear safety glasses to protect eyes from splashing. Use of a mild abrasive cleanser will usually remove stains from most surfaces. Use soap & water to remove from skin.

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Usage & Storage

H2Blue is a laboratory-grade test reagent containing compounds not intended to be taken internally. Therefore, keep H2Blue out of reach of children, and store in a cool, dry location. Under extremely low temperatures, H2Blueeco formula may freeze during shipping. If this occurs, allow to thaw at room temperature for 8 hours before using. DO NOT attempt to accelerate thawing by using a microwave oven or hot water! Please download  Safety Data Sheet  for more information.