Kelly Preston Signs On As Spokesperson of Kirstie Alley's Organic Weight-Loss Program

Governors Awards | Hollywood, Nov. 12

John Travolta, with wife Kelly Preston, credited Oprah Winfrey with teaching him not to let others change his perception of himself.

The actress credits the product regimen with helping her achieve the results of her 39-pound-less post-baby body.

Kelly Preston, nearly 50, gave birth to a baby boy just last year, and looks better than ever. So what’s her secret?

The actress has lost 39 pounds since the birth of her son last year and credits close pal Kirstie Alley, who dropped 100 pounds last summer, with the dramatic transformation. In an interview with People, Preston touted the Organic Liaison weight-loss program created by Alley, and has even signed on to become the system’s spokesperson.

PHOTOS: Hollywood's Highest Paid Actresses

“I was so excited when my best friend created Rescue Me,” Preston said of Organic Liaison’s supplement system. “It’s pretty much the most genius thing ever.”

“I lost 39 pounds, have more energy than I had 20 years ago – and I feel amazing,” she gushed. “I’m going to be turning 50 next year – holy s----! Hey, 50 is the new 30.”

The Rescue Me kit contains a series of natural elixirs designed to squash cravings, cleanse the body and provide increased energy. According to the Organic Liaison website, Rescue Me is the first USDA certified organic weight-loss product.

PHOTOS: Governors Awards 2011

Preston is currently attached to star in Barry Levinson’s crime-bio Gotti: In the Shadow of My Father. She will star as Victoria Gotti opposite real life hubby John Travolta and daughter Ella Bleu Travolta.

In other related Hollywood weight loss news: Earlier this month, new mom Mariah Carey revealed a 30 pound weight loss since the birth of her twins with husband Nick Cannon. The diva has signed on to rep Jenny Craig as the company's spokeswoman.