Kérastase Elixir Ultime Hair Oil Reviews

The product

As beauty writers, we know when your hair looks good, you feel good. The serious confidence boost comes with sleek, soft and shiny strands (not to mention no sight of frizz). So, when we found out an already top-tier product just got even better, we were over the moon.

The recently reformulated product in question? Kérastase Elixir Ultime Hair Oil. And let us tell you, this re-branding was everything. Sure, we already loved the multi-functional benefits of the oil (hello hydration and heat-protection), and they're still here, just amped up to the max.

If you already loved the ultra-nourishing (thanks to marula, French and wild camellia oils) formula then you'll be please to know it's only gotten better. Plus, the incredibly luxe bottle — that lives pride of place on our shelves — is now environmentally conscious. The gorgeous glass bottle has now been designed to house a refillable insert (we live for under consumption-core) that let's you top up for less.

Shiny strands are just a few drops away with the bountiful benefits from the stunning Elixir. Find out what our members had to say about this near-magical oil...

The panel

BEAUTYcrew sent the Kérastase Elixir Ultime Hair Oil to a panel of women looking to add an extra layer of nourishment to their strands.

The lowdown

How shiny and silky-soft their strands felt: If we're being real, silky-soft, shiny strands are our number one goal always. And when our beauty-loving REVIEWcrew members say their tresses are gloriously glossy, we believe them. Basically, with the recent reformulation of the formula making the oil even more nourishing, we're granting this incredible oil holy grail status in the shine and softness stakes.

The frizz-taming benefits: Humidity is a cruel mistress, one our reviewers know all too well. Thankfully this lightweight oil is here to tame away the dreaded frizz. Our members couldn't believe how much sleeker their strands were after applying the nourishing liquid.

How nourished and healthy their hair was: It's definitely easy to focus on the aesthetics of your strands without really considering how healthy they actually are. Well, the rigorous trial process allows our members to really give it a lot of thought. So, finding out that their strands are now feeling way more nourished, healthy and even stronger is reading as tick tick tick to us!

The verdict

Shop now

Available at:

From $110 at Kérastase

From $110 at Adore Beauty

From $110 at Oz Hair and Beauty

From $110 at MECCA

The Kérastase Elixir Ultime Hair Oil is honestly one of those products that just does it all. Lightweight and versatile, it smooths out frizz like a dream while adding the kind of shine that turns heads. It’s luxurious but also leave your hair deeply nourished and stronger with every use. What I love most is how it doubles as a thermal protector, so I can use it before styling without stressing about heat damage. It makes my hair feel like it’s had a salon treatment every time I use it! The sustainability factor is a big win too. The sleek glass bottle and the refill option is such a clever way to reduce waste without compromising on quality. If you’re after a product that delivers serious results and a little bit of luxury in your haircare routine, this is it. Trust me, it’s worth it!

Susanna C

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REVIEWCREW® MEMBER

The Kérastase Elixir Ultime Hair Oil is a game-changer! It tames frizz effortlessly, leaving my hair sleek, soft, and manageable. I love how lightweight it feels—never greasy—and how it instantly adds shine and hydration to my hair. It works wonderfully as a heat protectant, styling aid, or even an overnight treatment. The scent is luxurious and lingers subtly throughout the day, making it a joy to use. A little goes a long way, making it worth every penny. My hair has never looked or felt better!

Cassie B

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REVIEWCREW® MEMBER

This hair oil is by far my favorite. I have straight, thin hair with very dry ends, and my biggest challenge is finding products that control frizz without weighing my hair down. This oil not only controls frizz but also makes my hair feel silky smooth and shiny. Impressively, it keeps my hair from getting oily for up to three days. Although it's quite expensive, a little goes a long way. I use just 1-2 pumps on my long hair. The packaging is luxurious, featuring a glass bottle with a removable refill. It's perfect for traveling as the bottle twists to prevent leaks. The subtle floral scent is pleasant and not overpowering. I use this oil as the final step in my hair routine to control frizz. It instantly smooths my hair and gives it a healthy shine. After using it for a few weeks, my hair feels stronger and I've noticed significantly less hair loss.

Cindy C

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REVIEWCREW® MEMBER

Want to hear more about this lightweight, luminous and seriously nourishing oil? Check out the Kérastase Elixir Ultime Hair Oil Reviews here…

The products for this Review Crew® trial have been provided by Kérastase to Are Media and BEAUTYcrew for the purpose of trial and review by Review Crew® members.

*This combined average star rating for the Kérastase Elixir Ultime Hair Oil are based on a combined total of 100 reviews submitted and is correct as of 17/1/2025.

Main image credit: Are Media