Kylie Jenner makes Forbes 'America's Women Billionaires' cover

Photo: Forbes/Instagram

CBS8.COM -- The 20-year-old reality star covers Forbes' America’s Richest Self-Made Women issue, and gets candid about how she built her impressive $900 million fortune in less than three years.

The beauty guru debuted her Kylie Cosmetics line two years ago, and it has since sold more than $630 million worth of makeup, the outlet reports. Kylie -- who owns 100% of the company, now worth nearly $800 billion -- credits social media for helping her build such a massive following of customers.

"Social media is an amazing platform," says Kylie, who ranks No. 27 on the list. "I have such easy access to my fans and my customers."

Being in the spotlight with her famous family at such a young age, Kylie says she was always experimenting with beauty products, and felt passionate about makeup early on.

"Ever since I was in sixth grade, I would wear purple eye shadow," she remembers. "I turned to makeup to help me feel more confident."

Now, Kylie is looking to instill that same confidence in her own daughter, Stormi, who she gave birth to in February, her first child with boyfriend Travis Scott. It's her hope that her mini me will some day take over her beauty business.

"Maybe one day [I'll] pass this on to Stormi," she exclaims. "If she's into it."

Following the release of Kylie's feature, proud sister Kim Kardashian West took to Twitter to congratulate her on making the cover.

"CONGRATS @KylieJenner," raved the KKW Beauty founder, who also made the list, ranking in at No. 54 with $350 million.

"Thank you @Forbes for this article and the recognition," added Kylie. I’m so blessed to do what i love everyday. #KylieCosmetics."

Last month, ET caught up with Kim at the launch of her KKW Beauty and Fragrance pop-up shop in Los Angeles, where she revealed how her and husband Kanye West's eldest daughter, 5-year-old North, is already making her own beauty decisions.

"[North] is really into beauty," the mother of three revealed. "She loves hair looks. That's her thing. She loves a little bit of makeup."