can you tone excess skin?

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if so...HOW!?!?! i have excess skin in my stomach and upper arms (a little in my thighs, but i can deal with that). at this point, i know it is not just fat, the majority of it is just skin (from all of my weightloss, currently and before i started MFP). i really hope my only option isn't skin removal surgery or having to just live with this excess, but i'm not sure if skin can be toned. help please!

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