Reality TV star and beauty mogul Kim Kardashian West has officially joined the World’s Billionaires list for the first time, Forbes reports.

According to estimates, Kardashian West is now worth $1 billion, up from $780 million in October, thanks to two lucrative businesses—KKW Beauty and Skims—as well as cash from reality television and endorsement deals, and a number of smaller investments.

Kardashian West founded KKW Beauty in 2017, following the success of her half-sister Kylie Jenner’s Kylie Cosmetics. She borrowed from Kylie’s playbook, using a similar direct-to-consumer model that relies heavily on social media marketing. Her first launch, 300,000 contour kits, sold out within two hours. By 2018, the business had expanded into eyeshadows, concealers, lipsticks and fragrances, and was bringing in about $100 million in revenue.

Then there’s Skims, the shapewear line Kardashian West launched in 2019. She raised money from fashion insiders like Net-a-Porter’s Natalie Massane and Theory’s Andrew Rosen, and capitalized on her massive social media following to shill the brand. (She now has 69.6 million Twitter followers and 213 million followers on Instagram.) Skims has been quick on its feet: During the pandemic, when consumers became more interested in comfy clothes for the couch than in smoothing their stomachs under evening gowns, she swiftly started turning the focus to loungewear.

Kardashian West owns a majority stake in closely-held Skims, which hasn’t disclosed its revenues. A source familiar with Skims told Forbes about a transaction that values the shapewear company north of $500 million. As a result, Forbes estimates her Skims stake is worth a conservative $225 million, enough to lift her fortune to $1 billion.

The rest of Kardashian West’s fortune sits in cash and investments, including real estate. Every year since 2012, she has earned at least $10 million pretax, by Forbes’ count, thanks to paychecks from Keeping Up With the Kardashians, endorsement deals and endeavors like her mobile game and her now-defunct Kimoji app. She’s also got three properties in Calabasas, northwest of Los Angeles, and a portfolio of blue-chip investments, including shares of Disney, Amazon, Netflix and Adidas that her soon-to-be ex-husband Kanye West gifted her for Christmas in 2017.

But it’s the companies that she has launched herself, and grown with the typical Kardashian flare for self-promotion, that land her on the World’s Billionaires list.