I tried to look up the ingredients for their product, and all they'll admit is that it contains byproducts of Aloe. Anytime a company doesn't provide details about the ingredients in a nutritional supplement, is reason enough to run the other way. Academically, injesting an Aloe product to "cure" an auto-immune reaction will do nothing to stop said reaction. The only way to stop a food intolerance is to eliminate the antagonistic foods.
Be VERY CAREFUL about being influenced by testimonials/reviews on the internet. It is commonplace for smaller nutritional supplement companies to pay for "reviews!"
That said, after years struggling with GERD, my own studies, and discovering just recently that, concurrently along with GERD, I have developed an adult-onset intolerance to gluten and casein, I am firmly of the belief that most cases of reflux are, in fact, essentially a symptom of an auto-immune response. I also have a diagnosis of eosinophilic esophagitis. All the GI doctors I saw insisted that my moderate form of this condition was a response to the reflux, but this is simply not true.
The auto-immune responses to gluten and casein are insidious, and subtle, quite unlike an allergic reaction. For those who are sensitive, the non-specific symptoms can be all over the map, from mild to severe, and cover a broad spectrum.
There was a member on this board several months ago who was struggling with GERD, and, mercifully, made this discovery and recovered. She no longer posts here.
The most interesting study thus far was on the effect of beta caseins on dogs, which showed that the physiological response impeded gastrointestinal force and motility. Perhaps extrapolated to a weakened LES in certain individuals?
Estimates of how many of the general population have some form of gluten and/or casein intolerance start at 10%, up to some guesses at 30%.