Editor's TipEditor's Tip

For silky smooth strands, apply the super versatile Kérastase Elixir Ultime right after this treatment.

Kérastase

Birchbox Breakdown

From heat styling to chemical processing, there isn’t much we haven’t subjected our hair to in the pursuit of beauty. And my, how our poor follicles have suffered. Fortunately, this ambrosia-like hair treatment revitalizes even the most parched strands and frayed split ends. In addition, it provides protection against heat styling and even improves the performance of your tools.

How it Works

This magical product relies on three key ingredients. Royal jelly, a rich “bee’s milk” that is fed to a hive’s queen bee extend her lifespan, has an incredibly high moisture content as well as nutrients and antioxidants to keep hair healthy and strong. Xylose enhances hair integrity and shine while guar gum smooths down flyaways and paves the path to soft, silky hair.

How to Use

Apply a dime-sized amount of product to slightly damp, towel-dried hair. Start from the ends and work your way upwards, massaging gently. Finish off by styling with a blow dryer or a flat iron.

Aqua/Water, C13-16 Isoparaffin, Propylene Glycol, Dimethicone, Phenoxyethanol, PEG/PPG-17/18 Dimethicone, Triethanolamine, Carbomer, Potato Starch Modified, Behentrimonium Chloride, Hydroxypropyl Guar, Polyquaternium-4, Methylparaben, Amodimethicone, Benzophene-4, Linalool, Butylphenyl Methylpropional, Hexyl Cinnamal, Benzyl Salicylate, Trideceth-6, Citronellol, Xylose, Alpha-isomethyl Ionone, Benzyl Alcohol, Citronellol, Xylose, Hydroxycitronellal, Coumarin, Limonene, Cetrimonium Chloride, Royal Jelly/Royal Jelly Extract, Parfum/Fragrance

More for You!
  • Product orders $50+ and all monthly box brands ship free
  • Free returns within 90 days of purchase
  • Extra samples and gifts in the Bonus Shop

Product Reviews & Sample Feedback

4.4 out of 5 stars, based on 612 reviews 612 Reviews
4.4 out of 5 stars
5 Star
367
4 Star
157
3 Star
52
2 Star
25
1 Star
11
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Most Helpful Customer Reviews

incredible!
Purchased

Love it! This is one incredible product. It makes my hair really soft and shiny and it smells great. What more could I ask for?

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Amazing
Purchased

I have very thin brittle hair and this is not heavy on my hair at all it does not weight it down or make it greasy does quite the opposite it gives it life! it makes it shinny and bouncy - straight bouncy! its worth the price 100% and I can honestly say no other product has given me the results this product has yay!

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Love Kerastase
Purchased

I ordered this product about a year ago and still have about 1/4 of the container left, so I feel that it is a great value even at a higher price point. It leaves my long hair soft and manageable without weighing it down.

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Hair help indeed

Love it! This product really repairs the damaged hair instantly. After one use, I'm hooked for life. Loreal got it right with this one!

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Best hair product hands down

This is the best product I have ever used. I use hair styling tools on my hair almost everyday and this product keeps my hair from looking worn down. Also, my hair feels smoother and softer than ever!

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Great Product

This is such a good product! It really protects my color treated hair. The only reason why I'm giving it 4 stars is that it leaves a goopy film on my hands afterwards that I have to wash off. I prefer using a spray to avoid this.

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Saved my hair

I have dry, chemically processed hair that I round brush and straighten weekly. I was experiencing tons of breakage and this stopped it in its tracks as well as making my hair soft,shiny and bouncy.

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Amazing!

Made my hair super soft and manageable. My hairstylist uses this and I am so happy it is on this website! Such an amazing product and smells great! Love this whole line!

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Pretty great

I have very dry, very processed hair and it's hard to find products that really moisturize without being too oily. This has worked well for me, seems to help with hold, and smells good as well. Expensive, but a great product for a splurge.

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Good

I would say that this smooths the hair but i did not notice anything drastic like you would with hair oils.

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