Jessica Alba
Cast member Jessica Alba poses at the premiere of "Sin City: A Dame to Kill For" in Hollywood, California Aug. 19, 2014. The movie opens in the U.S. on Aug. 22. Reuters/Mario Anzuoni

Jessica Alba and her family spent an enjoyable Cancun holiday last week, where the “Sin City” star flaunted her fit body in a sexy scalloped white string bikini. The actress also made it to the list of Forbes' Richest Self Made Women.

The mother of two, along her husband, Cash Warren and two kids, travelled to Mexico to celebrate the fourth birthday of daughter Haven, E!News reported. During their beach summer holiday, the 34 year old star wore a sexy white bikini as she waded in the ocean water and lounged on the chair beside her Warren.

The Honest Company founder had a fun Cancun holiday, where the family went swimming in a cenote, and also enjoyed a zipline adventure with seven-year-old Honor and the birthday celebrant, Haven. The “Dark Angel” star even shared a picture on Instagram and captioned the image, “The family that zip-lines together sticks together #vacationlife #mexico.”

Alba also recently celebrated an important milestone for her Honest Company, after the Wall Street Journal reported Thursday that the company is now valued at $1.7 billion. This is after the company successfully raised $100 million in a new round of funding. The latest round was led by new investors Glade Brook Capital Partners LLC, as well as other investors Alliance Bernstein LP, Fidelity Management & Research, Wellington Management Company and Institutional Venture Partners. The e-commerce company announced that it would use the capital to grow Honest Company’s beauty line of cosmetics, skincare and haircare products.

According to Forbes, the Honest Company’s new valuation has catapulted the former “Fantastic Four” actress into the rare club of women billionaires. The star’s net worth is now valued at approximately $340 million. This means Alba is now part of Forbes’ list of America’s richest self-made women, and shares the spot with bestselling novelist Nora Roberts and Texas oil mogul Kathy Lehne.

Alba’s 20 percent stake in the Honest Company makes her richer than Beyonce Knowles and YouTube CEO, Susan Wojcicki, whose net worth are at $250 million and $300 million, respectively.