Creams

[x_rated_mo]

My sister said something about them, and i told her "No way, they're unnatural, besides how could you trust a cream that tones your body, what is it, a magic potion? If it were a good idea, nobody would have toning problems." Basically I told her to take the hard way, for her own good.
Was I correct, Are they any good? Do they actually help tone your stomach/thighs? Do they have any negative repurcussions?