Loose skin

I have lost a considerable ammount of weight and have notticed that my skin is not as firm as i would like it.  I am 26.

I was wondering if there was  a vitiman that i could take to help firm up my skin.  Or a cream that really works, i dont believe all the comericals.

I am 5'3" weighed 125lbs up untill 2003, started to gain weight (pregnancy and depression) in 2005 I weighed my max 270lbs.  I am now 175ish.

Loose skin is a problem that almost everyone who loses a significant amount of weight goes though :( Many people say genetics and time is the only thing that will really fix it.

Here is a link that talks about skin health and vitamins, though!

http://www.medicinenet.com/script/main/art.as p?articlekey=50505

lifting weights helps build muscle, as well as tighten up your skin

losing slow seems to be helping me with that,  alas, 

and regardless: WATER! 

drinking water, skin loves it. i've found it mega helpful.