Purchase caffeine-infused underwear because it'll make you thinner: Yeah...you can get your money back!

PORTLAND, Ore. (AP) — If you purchased caffeine-infused underwear because of promises it will make you thinner, federal regulators say you were hoodwinked — but at least you can get your money back.

The Federal Trade Commission announced this week that two companies have agreed to refund $1.5 million to consumers who purchased "shapewear" that supposedly can reduce cellulite and fat because it's infused with caffeine, vitamin E and other things.

The FTC says there's no scientific evidence to back up those claims.

In a settlement, Norm Thompson Outfitters of Oregon, and Wacoal America Inc. of New Jersey agree not to make claims that their products cause weight loss or a reduction of body size.

CLICK HERE for more from the FTC's website.