Jennie Garth looks incredible.

The actress, who turns 41 on April 3, flaunted her 30 pound weight loss in a tiny, hot pink bikini while celebrating her birthday at the Garza Blanca Preserve Resort & Spa in Puerto Vallarta, Mexico this week -- and X17online.com has the photos.

Garth vacationed with her three daughters with ex-husband Peter Facinelli -- Luca, 15, Lola, 11, and Fiona, 6.

"Home from @garzablancapvr Garza Blanca Preserve Resort & Spa. Had such a blast!! Thanks for the amazing trip!," Garth tweeted on March 29, adding, "#bestvacaever #familytime We miss you already Guillermo, Miguel, Michael, and Genaro."

The "Beverly Hills 90210" star is currently dating Big Gigantic drummer Jeremy Salken, 31, whom she met up with in Denver, Colo., following her trip.

Check out Jennie's red hot bikini body below and see more photos at X17online.com:

jennie garth bikini body

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