I was loving it for a while, found a yummy one, but then thought to look at the ingredients, and it contained high fructose corn syrup. Dang that stuff is in everything these days.... stopped drinking it.
The one we get is 'Lifestream Biogenic Aloe Vera Juice' but you don't drink the whole bottle, just take it as a daily dose of 20mls per adult (or up to 40ml twice daily for optimum results). I have tried ours and it doesn't really taste like anything so I don't think there is a lot of sugar in it.

Ingredients: Each ml contains aloe vera inner leaf juice (997mg), citric acid-anhydrous, potassium sorbate and sodium benzoate (essential to stabilise the nutritionally active compounds).

EJ - As far as the gel goes - we got it from the chemist. I have seen the little bottles of it in a few places for about $4 so you can try it out without it costing an arm and a leg. You have to get the pure aloe vera gel though and check the ingredients because lots of them are mixed with glycerine. DH has dermatitis also. He can't use anything on his hands without making them worse but he has had so much success with the aloe vera gel. It soothes it and makes them better almost over night. It hasn't entirely cleared up his problem but he isn't in pain anymore. I will have to find the gel bottle and post the name and ingredients.