from my experience, nothing is better than shell cream (neutral) from saphir, especially for dry shells. It gives it an instant glow from the getgo.
Just keep in mind that reno will dry your shoes, but may also take away some of the polish. So if you want a lighter shell color, that may be the way to go as well.
Another thing is, as you may or may not know, shell is more addictive than calf (i'm not sure why, it just is), so tread carefully, haha.
Edited by JezeC - 6/20/14 at 7:35am