Reality TV ‘Keeping Up With The Kardashians’ star turned makeup mogul Kylie Jenner has unseated Facebook founder Mark Zuckerberg as Forbes Youngest Self-Made Billionaire. Her three-year-old makeup brand ‘Kylie Cosmetics’, solely owned by Jenner, is now valued at $900 million.

The expansion of ‘Kylie Cosmetics’ to a new partnership with Ulta Beauty ‘s 1000-plus stores reportedly generated $54.5 million in six weeks, making it one of the fastest-growing cosmetic brands in the world. Kylie Cosmetics launched in 2015 with the Lip Kit and now includes 30 products including highlighters, setting powders, blushes and makeup brushes. The launch at Ulta in physical locations in all 50 states was considered a blockbuster, with inventories wiped out in hours.

“It’s the power of social media,” Jenner says. “I had such a strong reach before I was able to start anything.” Forbes writes: “Ulta and Jenner are a sensible pairing. With Ulta’s mix of pricier prestige brands, like MAC Cosmetics, and cheaper selections, such as Nyx Professional Makeup, it has a larger footprint than that of its closest competitor, the more expensive Sephora. “

Kylie, the youngest of the ubiquitous Kardashian-Jenner sisters at age 21, dethrones Mark Zuckerberg who achieved the youngest self-made billionaire at age 23. In addition to her 175 million followers on social media, Kylie Jenner has a one year old daughter Stormi with rapper and boyfriend Travis Scott.