Jennifer Aniston is now helping promote the workout drink ‘Smart Water’.
The toned 41-year-old star smolders in a new ad for Smart Water, which features the actress gleaming with sweat in nothing more than a sports bra and tight pants.

“Working out feels great … afterwards,” the ad reads. “That’s why I drink Smart.  It’s hydration I can feel.  (And it’s one part of my routine I never sweat.)”

The former “Friends” star, who runs and practices yoga to stay in shape, recently denied following the baby-food diet to lose weight.

The regimen, which calls for much pureed food, has become popular among some celebrities.

“I’ve been asked lately, ‘Jen, what’s this baby food diet all about?’” Aniston told People.com.  “I kept thinking, ‘That’s the strangest question ever.’”

Aniston also denies using Botox to fight wrinkles (though she says she wouldn’t rule it out in the future).

The actress instead eats a healthy diet but won’t give up her coffee, wine or dairy products.