I have always heard that only the clear gel of Aloe vera was edible. I have heard that the yellowish gel from right beneath the skin of the plant, was bitter and, although not necessarily poisonous, not particularly good for one.
However, although my grandmother, with whom I lived when I was growing up, was an herbalist (nearest doctor was 50 miles away ... one way), I have no interest in the medicinal use of herbs, myself.
I honestly don't feel that I have sufficient knowledge of the medicinal use of Aloe vera, or any other Aloe species, to answer your question. If you like, I can move this thread to the Herb Gardening forum. Someone there might be able to help. That's the best I can offer. [img]https://i252.photobucket.com/albums/hh27/Kisal_photos/dunno.gif[/img]
"Isn't it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?" - Douglas Adams