But the 20-year-old wasn't sure how successful the product would be.
Kylie Jenner officially only has one more year to go before she's legal. Though it's said the reality star - who now has her very own E! spin-off Life of Kylie - has had some work done to alter her appearance, there's no denying she's become the hottest star in the industry.
It's recently been announced that the brunette beauty earned $420 million in 18 months off of retail sales alone, according to Women's Wear Daily (WWD). However, as WWD reports, the latest Kylie Cosmetics release, of the limited edition Birthday Collection, sold $10 million in one day, indicating that KKW Beauty is not a threat, but a complementary brand.
Let's put that in perspective.
According to the u.s. site, Kylie Cosmetics will have generated $ 1 billion within five years.
Kylie is known for being extremely body confident, so it came as no surprise that she chose the smallest two-piece she could find.
Kylie also posted a photo of the celebration to Instagram, where she's standing in front of a wall full of butterflies.
It's pretty much understood and confirmed that Kylie made $40 million between June 2016 and June 2017, and the majority of that income was related to her Cosmetics company.
"I think people were surprised that the brand was so successful, because it's something that Kylie created, but didn't really expect the whole business to be the flawless storm", Kris said.
"They want to include more footage of her sister, Kim, as they think people will tune in to watch then".
To celebrate turning the big 2-0, the lip kit queen is bidding farewell to her teenage years by stripping down and showing off her bod.
Kendall Jenner took to her app, writing, "I hope you have the best birthday, Ky!"
There was definitely no technical glitch for this lady as her Kylie Jenner Lip Kits are highly sought after. "She is not a happy person to begin with and all this show did was solidify that to her fans", the source added.
"I want to keep building it and just show people what I can do on my own", says @kyliejenner about @kyliecosmetics.