California's Napa Valley, just 30 miles long and 5 miles wide. It is home to more than 300 wineries. But not everyone who visits comes looking for a glass of Napa's fine wines.

The spa industry is thriving in Napa, too. And now the valley's spas are offering a new varietal, a robust blend of mud and grape seeds.

"I'm going to be gently exfoliating your body and then putting the crushed grape seed mud all over your body."

A medium merlot for your body? Some shiraz on your shoulders?

It may all sound a bit fruity but there are some health and beauty benefits, according to therapist Peggy Smythe.

"The grape seed is slightly grainy, so as we're applying it, the grape seed gently exfoliates the skin. "

"This is a French clay, infused with grape seed from the Napa Valley."

The mud also tightens and tones the skin. At least, that's the claim.

"Let's have you lay back down."

After being covered with the grape seed mud, guests are wrapped in warm blankets.

"I call this the spa burrito. Are you comfortable?"

Eventually, the cocooning must come to an end.

"I'd like you to sit up please."

Then it's into the shower, where the mud washes right off and grape seed goes down the drain with it. The result?

"My skin feels soft, smooth."

A healthful pursuit or a marketing gimmick? However you see it, you have to admire the versatility of the fruit of the vine.