"They're good at telling you what's not in it, but I'm missing an actual listing of ingredients."
In one of the links, can't remember which for all the hype, reference was made to an isotonic blend of sodium chloride and sodium citrate with Sucralose and natural flavors added for palatability. Pretty pricey for a few sodium ions, Id say. Not to mention a complete lack of any reference to potassium, calcium, and magnesium. Also, their examples of its use were 30 and 70 minute bouts of intense exercise. That would at least partially explain the absence of carbs in the product-and absence of relevance to endurance activities such as backpacking. I'll be taking a pass on this one, pending enlightenment by someone who can explain the physiological basis of the claims made for this product.