Im young, have good genes, I exercise, and I have follwed an intense moisturizing regime for 16 years. But I still have excess skin. I do believe the degree is less than what I would have if I were an RNYer or older, but there is no denying that I have it.
Honestly, some extra skin is a given, even for young bandsters. The amount depends mainly on genes, body type, and amount of weight lost.
For me, there has been a fair amount of "bounce back" but I still have some batwinging, saggy boobs, and loose thighs. But I have a firm round bum, no sagging there (thanx Mom). Ill take a little loose skin over my bulging preband firm skin anyday.
Browse the Plastics board and you will see bandsters of all ages having extra skin removed.