Hi there-
If you believe the skin on your arms (or anywhere else) is loose and that this is creating an appearance with which you are displeased, it is most likely that only surgery will give you an outcome with which you are pleased...
Unfortunately, the currently available technologies produce minimal (if any) true change in the appearance of excess skin, or in that of skin with poor elasticity.
Think of it this way- (I say this often to my own patients in my Orlando Plastic Surgery, Skin Care, and Hair Restoration Center)- the only thing worse than being unhappy with the way you look is to spend your money, have a painful procedure, and STILL be unhappy with the way you look....
Don't waste your time and money....