I think a very good anti-aging product is Retin A Micro. It's a bit strong so some can't tolerate it and you should use sunscreen. It's a must have for me, 2-3 times a week. It's prescription, it's expensive and many insurance companies don't cover it.

Perhaps, something with AHA. I like M2 High potency skin refinish and Dr. Gross BHA pads. Skinceuticals makes some great products but expensive. I like the Tarte Maracuja oil as a moisturizer.

Not sure about a cream for dark circles.