Emily Blunt’s Frizz-Free Curls Are Due to a $13 Hair Oil Amazon Shoppers Call ‘Amazingly Good’

Emily Blunt’s sleek Hollywood curls for The Devil Wears Prada 2 London premiere were crafted with precision and polish. According to celebrity hairstylist Laini Reeves, the secret behind the 43-year-old actress’ glossy, defined waves was Tresemmé Bonding Oil. The lightweight treatment is designed to smooth, strengthen and add mirror-like shine without weighing hair down.

“For Emily’s London premiere look, I wanted the hair to feel sleek, sculpted, and effortlessly modern,” Reeves wrote in an Instagram post. The result? Glossy, defined waves that looked equal parts timeless and modern — anchored by a high-shine finishing step that elevated the entire style.

Tresemmé Bonding Oil helps reinforce hair from within, making it especially ideal for heat-styled looks like sculpted curls. It also works overtime to tame frizz, seal split ends and boost softness, leaving hair looking noticeably healthier and more polished. What gives this oil its high-gloss payoff is a mix of conditioning oils and silky smoothing agents that coat the hair just enough to reflect light without feeling heavy. Think nourishing plant-derived oils that soften and add slip, paired with lightweight gloss enhancers that seal the cuticle and blur the look of frizz and split ends.

Get the Tresemmé Bonding Oil for $13 at Amazon! Please note, prices are accurate as of the publishing date but are subject to change.

If your hair leans heat-stressed, this oil pulls double duty as a repair-focused finisher. It helps reinforce weakened bonds caused by repeated hot tool use, so strands feel stronger and less prone to snapping over time.

At the same time, it smooths down rough, lifted cuticles — one of the biggest signs of heat damage — so hair looks sleeker and reflects more light, rather than appearing dull or brittle. With consistent use, it helps soften that dry, straw-like texture and makes curls look healthier and more defined, even if you’re still reaching for your blow-dryer or curling iron regularly.

To use, apply one to two pumps to damp hair before blow-drying to protect and prep strands, focusing on mid-lengths and ends. Once hair is styled, warm a tiny amount between your palms and lightly glide it over curls to define, de-frizz and add that sleek, reflective finish. The result is touchable, glossy movement that holds its shape while still feeling soft and effortless.

Just take it from one five-star Amazon reviewer who raved, “Amazingly good,” adding, “Feels good, smells good and [has] no build-up.”

If you’re chasing that same sleek, sculpted shine, Tresemmé Bonding Oil makes it surprisingly easy to recreate a red carpet finish at home.

Get the Tresemmé Bonding Oil for $13 at Amazon! Please note, prices are accurate as of the publishing date but are subject to change.

Looking for something else? Explore more hair oils here and don’t forget to check out all of Amazon’s Daily Deals for more great finds!