as far as i know.....it is always good to prevent the lines. once the lines are there, it is hard to get rid of them...but there's way to make them less visible. but i am not expert.....
i use jurlique...it's organice...there's another brand Patyka (french)....try looking into something that might help. my sister said neutorgena works for her...
btw, sun tanning can cause aging.