There are several of these products on the market. All of them are basically the same: highly concentrated aloe vera. All of them are very expenisve, but I found a cheap alternative the other day: http://www.newchapter.com/products/aloe-vera-force
http://www.iherb.com/New-Chapter-Organics-Aloe-Vera-Force-60-Capsules/58?at=0
The Aloe Vera Force doesn't work miracles but it helps. I have no idea how this product compares to the more expensive ones.