Hint: You probably already have it in your makeup bag!

There’s no Lip Kit kolor Kylie Jenner can’t sell: Just moments after she released her latest launch, a matte black liquid lipstick named “Dead of Knight,” the shade sold out in a matter of minutes.

Fans of the 18-year-old’s Instagram know she’s been partial to shockingly dark lip looks for ages, so it made sense that she’d take the time to perfect a shade she loves so. But before she whipped up the custom color, Jenner had to get a little creative with her makeup, using an unexpected product to perfect her black pout.

Kylie Jenner black lipstick
Source: Kylie Cosmetics Instagram

“Black Lips Forever,” she wrote on Instagram on Saturday, after the shade sold out on kyliecosmetics.com. “I used black eyeliner when it wasn’t as easy to find matte black lipstick. #deadofknight”

RELATED VIDEO: How to Get the Perfect Red Lip

If the idea of swiping black eyeliner onto your lips seems a little, well, insane, it’s not unheard of in Hollywood: celebrity makeup artist Vincent Oquendo previously told PeopleStyle one of his favorite ways to paint the pouts of his supermodel clients is to do so with eyeliner.

“If you’re going to do a dark lip, most of the time you’re not just going to be able to buy it off the shelves,” he previously told PeopleStyle. “I wanted the long wearability, so that’s why I used the eyeliner, which is something I tend to do a lot because eyeliners tend to be waterproof as well.”

Not quite ready to reach for Dead of Knight (or try the eyeliner trick yourself)? If you want to ease into the look, Oquendo suggests that “maybe a cream is a little bit easier … because creams receive light, while mattes absorb the light, I would suggest trying out a dark, glossy lip, which is gorgeous.”

Matte or gloss — whichever lip look you decide, just know 16-year-old Jenner would be proud.

“Back when I only dreamed of having my own lip line. 16 yr old me would be so proud @kyliecosmetics this new kit is so important to me #deadofknight,” Jenner captioned the throwback photo after revealing Dead of Knight. “If I only knew back then old Kylie would be so proud.”

Are you a fan of Kylie’s new black lipstick? Do you have any of her other Lip Kits? Share below!

–Sarah Kinonen