Thanks for the helpful post. I took cod liver oil in the past, but beef liver supplements has much more vitamin A in it.
I want to make a correction to my post. I wrote that people who took Accutane may have too much chemical form of vitamin A stuck in their tissues like an overload of vitamin A. But it could also be that their bodies either think they are making enough vitamin A since it is stuck in tissues or they went back to being deficient in vitamin A again (just more deficient than before) after stopping Accutane. So, I would give beef liver supplements a try(or check the link in above post for right kind for blood type).