I am not sure if there is any topical product that can truly help with the sagginess (despite what many products claim), but keeping your face healthy and moisturized can help it from being noticible.
I love kiehls face products. I used the UV protective everyday w/ spf 15 (http://www.kiehls.com/...reen-Cream-SPF15.htm
) for the day time...their facial creme for the evening/bedtime http://www.kiehls.com/...tra-facial-cream.htm
and a gentle cleanser. if you can get to a kiehls store, they have free samples of ALL their products so that you can see what works best for you. But i find all their products are great and gentle on the skin.
Best of luck.