The company was launched only 3 years ago, so landing the cover of Forbes America's Women Billionaire is pretty justified.
But other people really, really don't think so.
Kylie is the youngest person on the fourth annual ranking of America’s Richest Self-Made Women, but what people have an issue with is the 'Self-Made' part.
Kylie really has made an impact on the beauty world... but some argue that the wealth she was born into is to thank.
"Kylie is sad that she is not getting the respect she feels she worked hard for and earned," an insider has revealed.
"She has worked so hard on her cosmetics line, no one handed it to her and there was no blueprint to follow. Since day one she’s been the driving force behind making Kylie Cosmetics a $900 million dollar business.
"And now that she’s proven how much money can be made selling makeup online everyone’s jumped on the bandwagon but she was the first and she feels she is being disrespected and deserves the credit for all her hard work and marketing genius."