Best skin care line for someone in their late 20s wanting to keep youthful appearance as long as possible?

I've never used any skin care line set except for a Mary Kay one that I got as a Christmas gift once. It made me break out on my checks and nose and I hardly ever break out at all, so I quit using it and wound up giving it away to my Mom since none of the Mary Kay stuff causes her any skin problems. So now I'm back to square one, only using St. Ives apricot scrub occionaly and that's it as far as my skin care regimen goes. If I notice that I have super dry skin, I'll put on a little pure unscented Vaseline on my face or some Eucerin cream as these don't cause me to break out. I'm really worried about getting deep wrinkles later on in life though. My main issues with skin are dryness and I also have pretty sensitive skin. I already have some fine lines on my cheeks, not so much around my eyes, the lines are obvious only on my cheeks but only when I smile. What skin care line do you use to keep your skin looking great? I'd like answers from women of all ages please. Thanks :)