How can I prevent loose skin after surgery?

Or reduce it?

I think most of us pre-op peeps have asked this. The general answers fall between working out (cardio and strength), heritage/family history, and just accepting many of us will have some sort of loose skin.

So far some people have also suggested compression garments, lotions, etc. The jury is out on those as it seems the 2 camps (for/against) have about agreed to disagree on those. I think the best advice (and most common) is to start working out asap and understand it will be 2 years post op before you really know how your skin will handle the rapid weight loss.

http://www.thecrunchychicken.com/2011/01/detox-dry-skin-brushing.html?m=1

A lot of people swear up and down that this works. I'm still pre op and I've already started. I figure if it works, great and if not then at least my skin looks great! My skin is much softer than it was before

You can't. Truth, sucks but you can't.