from what i heard, yea vitamin E is good for the skin.
but i use it mainly to heal dry skin instead. from experience, it take long time to heal scars.

for scars, its better to go to doctors and get a prescribe cream or something to use. there was one i use last time for scars and it work well for me.

aloevera also heard that its good for skin. but i'm not sure good for what. i normally just mix pure aloevera gel into my home made masks. thats all.