Yes, there were two threads about this before, both by myself and Obsidian that were posted about the same time:
http://www.soapmakingforum.com/showthread.php?t=61757
http://www.soapmakingforum.com/showthread.php?t=61756
However, my main concern would be with the fact the juice is manufactured by the same company, Fruit of the Earth, whose aloe vera gel was found to be lacking actual aloe. Real aloe is expensive, and to me it seems unlikely one can purchase an entire gallon of 99.8% aloe vera juice for $6.44.
While most of the article speaks to gel, it also mentioned this:
"Independently, ConsumerLab.com said it had Fruit of the Earth brand Aloe Vera 100% Gel tested using nuclear magnetic resonance and found no evidence of aloe, while a competing brand, Aubrey Organics, did contain the markers that indicate aloe. ConsumerLab said it tested a dozen aloe products, including pills and juices, and just half the items appeared to meet the claims on their labels."
I do not have access to the entire Consumer Lab testing report to know which juices actually passed the test, but Fruit of the Earth brand was highlighted for failing their gel test and, right or wrong, I extrapolate that business practice out to their other products.