Fillers or Other Procedures for Dark Circles on Thin Skin?

I have dark circles as well as some very fine lines located right under my lower lash line. I try to cover my dark circles, but the concealer settles into the lines and I hate it. Would I benefit from fillers or is there some procedure that can actually thicken the undereye skin? I've thought of trying fillers, but I have thin skin and I'm worried that the Restylane (or whichever one) would somehow show through. The first time I had Restylane in my lips, there were parts where I could kind of see the little gel pocket. Can this happen in the eye area? I really appreciate any advice.