Instead of breaking out the beakers and the Bunsen burner, we opted to be subjective and field test First Endurance’s OptygenHP. I put it to work while training for the Lost Dutchman Marathon…
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NEW & IMPROVED EFS DRINKS

Downing bottle after bottle, sometimes over twenty a day, can take its toll on the digestive system. The body is really not designed to process the massive amounts of carbohydrates that are needed to complete a stage of the Tour. Therefore, a product providing the correct balance of electrolytes, amino acids [...]

1st Endurance: efs electrolyte drink
“New and Improved for 2010″ or so the label says. My first reaction when I saw this was, c’mon guys, what is this soda pop? But I’m a huge fan of First Endurance products- I’ve been buying the EFS drink mix for three years now- so I [...]

We LOVE the first endurance stuff… Steve and I both used it in a race recently and we needed nothing but water from the aid stations because the FE fuels  so well – it is easy to get down, much more so than gels.. it’s liquid and goes down easy with a swig of water.  [...]

FIRST ENDURANCE NEW & IMPROVED EFS

First Endurance’s EFS drink formulations have been redesigned for 2010. They’ve been upgraded with the latest amino acid technology, which means faster and more complete absorbtion, and the addition of malic acid, which stimulates oxygen consumption. The EFS drinks also have a high electrolyte content- more than 1,160 [...]