Kylie Jenner's Lip Kits Have Made Her An Insane Amount Of Money

Simply stunning Kim Kardashian showed off her curvaceous physique as she left Los Angeles restaurant Manny's Pizzeria on Sunday night

Kylie Cosmetics actually has done $420 million in retail sales - in just 18 months - Kris Jenner revealed to WWD last week during an interview in her office at her home in Hidden Hills in Los Angeles.

It's the first time Kylie has discussed financial details about her business.

Cake and candles were on hand, to be sure, but the most jaw-dropping birthday accoutrement was an ice sculpture that paid tribute to the starlet's well-known figure.

It was in the lag months that Kris and Kylie embarked on their partnership with the current manufacturer, California-based Seed Beauty, which is also the parent company of ColourPop. Everybody knew her lip kits were wildly popular, but the specifics about the size of her beauty empire were shrouded in matte-finished mystery.

2011: Kardashian KolorAged just 13, Jenner reportedly pocketed $100,000 alongside her sisters for promoting an OPI nail varnish line named, fittingly, Kardashian Kolor.

He went on: 'Kylie was right there by my side during all my chemo treatments, and together we are raising awareness through her products'.

But now, as Jenner's success continues to rise - she just announced Kylie Cosmetics is worth $460 million, and on the path to becoming a $1 billion brand - the 20-year-old mogul worries her glam squad is getting a little too comfortable around her.

All of her beauty experiments, from lip kits, to loose highlighters to eye shadow palettes sell out.

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In comparison, WWD has reported that Estée Lauder Cos.

We think she's going to be alright, guys.

"What I've been into is creating collections; that's kinda my thing", the 19-year-old told WWD about her job as the creative mastermind behind her brand.

"In the beginning I thought my brand had to be consistent and everything (had to) look the same and that was stressing me out", Kylie said.

The younger sister of Kim Kardashian certainly had plenty to celebrate as she enjoyed a day with her mother and manager Kris.

"You are one of a kind, and I'm grateful every day that God gave me you", she continued.

One tweeter wrote: "I love Kylie but she just said "I didn't get to grow up normal it's just so hard".well paying bills is hard we can switch".