Hailey Bieber’s golden bustier wasn’t the only thing dazzling on the Met Gala red carpet.
While her art-inspired royal blue and gold Saint Laurent ensemble had its moment, she topped off the look with a lacquered, slicked-back hairstyle with a finish so precise, it bordered on liquid.
The secret weapon behind it? None other than Ouai’s cult-favorite hair oil, a versatile, under-$35 formula.
“Hailey’s look is all about balance; it’s structured, but still soft,” Bieber’s hairstylist, Irinel de Léon, shared in a press release about the “goddess” look.
“The dress has a strong silhouette and presence, so we wanted the hair to feel clean, pulled back and really intentional,” she added.
The formula earns its place in the glam room for a reason. It’s designed to smooth frizz, seal split ends and add a reflective sheen without dragging hair down, while also offering heat protection — key when you’re sculpting a look that needs to hold under pressure.
The blend of nourishing oils works overtime to keep strands soft, hydrated and camera-ready, which explains that almost wet-look finish.
“With the Met theme, it’s about refinement — letting the shape, shine and overall mood speak without overcomplicating it,” Bieber’s hair pro added.
I’ve also put it to the test myself, working a few drops through damp hair before pulling everything back tight — and the result felt borderline editorial.
It nourishes my scalp in a way that feels immediate, not heavy, and the shine payoff is what really sells it. (Think: radiant, like you’ve been sunbathing all day and your hair just caught the light at the right angle).
It doesn’t sit on top of the hair; it melts in, leaving that expensive-looking gloss without tipping into greasy territory.
If it’s Bieber’s look you’re hoping to copy, you’re in luck. Her hairstylist spilled her full start-to-finish hair routine for the Met Gala — including Ouai Detox Shampoo, followed by the Bond Repair Balm to helo strengthen and restore her tresses.
Next, she swiped on some leave-in conditioner and a frizz tamer for smoothness and control.
Finish it off with the hair oil, and voilà — you can replicate Bieber’s showstopping look on a normal day.