However, when "20/20" asked to see those studies, the company refused, citing trade secrets.
The next anti-cellulite product under review was the $235 pair of MBT sandals that Elaine used for a month.
In Bank's opinion, her cellulite looked unchanged.
The president of MBT, Klaus Heidegger, admits there's no science to say the shoes fight cellulite. Still he thinks they could offer some benefits from the sandals' design. "If it changes the blood flow and tones the muscles, then maybe something is there that will change," he said.
Bank also saw no change in Jessica, who underwent the most expensive treatment, spending some $1,400.
The manufacturer sent us studies its says support the claim that the technology improves the appearance of cellulite.
But Bank remained skeptical. "I have not seen any studies on any of these products that have been published in what would be considered, uh, scientific peer-reviewed journals," he said. When "20/20" asked spa owner Cuellar to comment on Jessica's disappointing results, she suggested doubling the sessions.
"It's not really a lot of money for a woman that wants to look great in a bikini," she said.
This bikini season the hottest new product is Dove Firming Cream being modeled by "real women with real curves." The cream claims to "reduce the appearance of cellulite" after two weeks.
Bank took a look at the cream's ingredients and said "none of the listed ingredients have ever been shown in scientific, peer-reviewed literature to reduce cellulite." If the cream does reduce the appearance of cellulite, the results will be temporary at best, according to Bank.
A spokesperson for Dove told "20/20" there is "no miracle cream out there." The spokesperson added that Dove is "not trying to say they can get rid of cellulite, just minimize the appearance of it." Most experts point out that any improvement is temporary at best, because there's still no proven way to get rid of cellulite for good.
The bottom line, according to Bank, is simple anatomy. Not even Hollywood stars can change it, he said, they're just great at hiding it.
And one of the best ways to camouflage cellulite, according to make-up artists on the old television show "Baywatch," a program built around bikini babes, is self tanner.
Shape magazine's Stafford agrees, "It's the best trick you can use. If your skin is tanned, you actually give the illusion of having less cellulite," she said.
And if that's good enough for Pamela Anderson, then it's got to be good enough for the rest of us.