They are the lips that have launched a thousand TikTok videos trying to answer—what products does Hailey Bieber use to get her perfectly pouty lips? As of last week, we're officially one step closer to knowing.

What makes the product so unique is how multifunctional it is. Either follow the natural lip line, overline for extra volume or fill in the lips entirely. For nourished lips with

Up top, Bieber rocked a slate-gray cardigan from Frankies Bikinis, which she layered over a classic white tee. To match the cardigan, she donned a gray headscarf, which she only wore on her head for a minute before ultimately tying it around her shoulders, adding a level of prep by making it look like a sweater tied around her neck.

Bieber made the dash through Union Square in a functional yet fashionable fit. She kept to neutral tones and some signature pieces, wearing an oversized beige trench and matching low-rise suit trousers,

While dressing in all black during the winter can often be a default, take a page out of the model’s style book and opt for a little levity in head-to-toe beige. You can still play with different shades of brown and textures in the look as Hailey does and polish the look off with a few key accessories, like a sharp bag and croc-embossed heels.

The Peptide Lip Shape isn't a lip liner though, per se. It's meant to be a contour for your lips to add definition and color while also making your lips look and feel more plump and hydrated. The formula actually features peptides,

Justin and Hailey Bieber have grown closer since they renewed their vows in May 2024 despite rumors of a rough patch in their marriage

Justin also attempted to debunk rumours of marital woes between him and his wife Hailey after setting the record straight about unfollowing her on Instagram.

Pop star Justin Bieber was known for his swishy hair and baby face, but looked completely different as he debuted a shaved head and tired features in New York without wife Hailey

Justin Bieber's recent tense appearance in NYC raises concerns over marital issues with Hailey Bieber, despite their earlier date night.

Justin and Hailey Bieber are "in love" and "super focused" on their marriage despite "constant" split rumors surrounding the new parents, a source exclusively tells PEOPLE.

Justin and Hailey Bieber stepped out for a date night at the Los Angeles comedy club Laugh Factory on Jan. 25, the venue and comedian Nicky Paris shared on Instagram. The couple was joined by Tate McRae.