Kerastase reviews and discussion

4.8

100% of reviewers would recommend to a friend

Reviews mention

  • Luxurious, long-lasting fragrance
  • Lightweight, non-greasy textures
  • Visible frizz-reducing performance
  • Reliable heat-protection benefits
  • Thinner reformulated hair oil
  • Inconsistent shampoo lather performance
  • Line-dependent effectiveness variability
  • Perceived artificial ingredient profile

Kerastase earns strong reviews as an effective, salon-grade haircare brand that delivers smoother, shinier, less-frizzy hair, with standouts like Elixir Ultime oil, Nutritive 8H Magic Night Serum, Discipline, Genesis, Chroma, Résistance/Bain Thérapiste, and Curl Manifesto. Reviews also note downsides: certain formulas feel thinner or don’t lather enough, some ingredients read overly synthetic, and performance can vary by line, though scent, lightweight textures, and visible repair and heat protection remain consistent strengths.

AI summary based on Thingtesting reviews

30 reviews and posts

  • My sister bought this for me for Christmas because she has the full-size and wanted me to try it cause she thought I would love it. I love it. It smells fantastic and put a few pumps in your hair at night knowing like tomorrow you’re gonna freestyle your hair or gonna apply heat again it reduces frizz. It’s soft. It creates a nice shine. It’s just a really good in between while still staying recharged and moisturized.

  • I'm in love with Kerastase shampoo! My hair looks so shiny,smooth and well hydrated. It feels like I have fresh from salon hair everytime I use it. The scent is so rich and luxurious while the bottle is so beautiful and fancy

    Received a free product from Kerastase
  • I’ve been using the Kérastase Elixir Ultime hair oil on my highlighted hair and I honestly love it. My hair tends to get dry because of the lightening, but this oil makes it feel incredibly soft and smooth. What I really like is that it adds a beautiful shine without making my hair greasy or heavy. A lot of hair oils weigh my hair down, but this one just makes it look healthy, shiny, and fresh. And the scent… it smells amazing! Every time I use it my hair looks more vibrant and polished. Definitely one of the few hair oils I genuinely enjoy using.

  • I discovered this hair mask when my hair was very damaged, and it truly helped to get stronger and less damaged. I absolutely love the after result. When I use this hair mask my hair is very soft and smooth, also I noticed it helps with frizz which is something I struggle. The smell is amazing, it is noticeable when I wash my hair. This hair mask also helped my hair to improve that weird dry and damaged texture. It also reduces my drying or blow dryer time because my hair fells more straighter too.

  • amazing product, really makes a difference on my ends when used overnight. smells great and even the travel size lasts a long time. helps with frizz, split ends, and hydration. find it works best on damp hair, but also sparingly on dry!

  • Great brand! I’ve had the chance to try the oil and a shampoo. The shampoo wasn’t my fav as it didn’t really suds up and felt like maybe just sat in my hair but I love the oil! It’s so nice and lasts forever

  • These products really feel like luxury hair products, from the packaging to the actual formulas! I love that the oil moisturizes my hair without making it look super oily...I feel like it doesn't ruin my hair for the next day if I wear it in a slick back, then want to wear it down. BUT, it helps with the perfect slickback bun.

  • Kerastase has so many magical products, but this one is a above what I expected. Right now y hair is blond and highly damaged, the one and only thing that makes it feel soft it is Kerastase's nutritive 8 hour magic night serum

  • Kérastase Elixir Ultime is a luxurious hair oil that adds shine and controls frizz without feeling heavy. However, the new formula is thinner and less effective than before. It’s quite expensive, so there are better affordable alternatives out there.

  • La mascarilla Genesis de Kérastase fortalece el cabello debilitado y reduce la caída por quiebre. Deja el cabello suave, nutrido y fácil de manejar, con un aroma delicado que me encanta. Es un tratamiento ideal para cabellos dañados. 💆‍♀️🌿

  • I have used numerous different hair products but this is another level. I love the texture so much! never leaves my hair greasy or weird. Overall it’s pretty lightweight and does the job perfectly at a very good price!

  • Obsessed with Chroma shampoo and gloss treatement!! First the smell is great, then it make my hair soft and shiny. I am a long time fan and user of Kerastase and this is a great new line for me to use with color treated hair!

    Verified purchase

  • This product singlehandedly took my at-home blowouts from frizzy to smooth and shiny. It's not cheap, but I only need about a dime-sized amount each time, so the tube has lasted me years. It also smells amazing, like a high-end salon! I really should buy a backup tube in case it ever gets discontinued!

  • Omg the things I could say about this brand. I’ve used Kerastase hair oil for years now, tried other brands here and there and truly NOTHING compares. I recently got their nighttime serum for the hair and WOW?! Like why is no one talking about this product. It’s a miracle in a bottle and I will for sure be purchasing more.

  • So far, I haven't found a better hair care brand. The first thing that makes me happy and relaxed is the fragrance of the shampoo. I wash my hair, inhale the fragrance and savour it. The shampoo foams beautifully and I use it for 3-4 months every day. I then apply a hair mask or conditioner. My hair doesn't frizz afterwards. It is manageable throughout the day. Only after this care I justify expensive haircuts and go to the hairdresser only after 3 months, not 2. I love this brand.

  • In my experience, Kérastase products are among the absolute best, and are absolutely worth the price! I currently use their Premiere line for my shampoo and conditioner, along with the Genesis serum, and the Nutritive 8H Magic Night Serum.

  • Bain Thérapiste Shampoo If you have very dry, damaged, over processed hair that tends to break this is the shampoo for you. It’s specifically made for the worst hair erosion level at a 3 and 4. A little goes a long way. I love the scent it smells luxurious and clean. I noticed my hair is getting stronger. This big bottle will last me forever !

  • I am obsessed with the Kerastase Nutriv 8H Magic Night Serum. It is undoubtedly my favorite hair care product on the market. This luxurious overnight nourishing leave-in serum is formulated with plant based proteins and niacinamide. It hydrates, detangles, and reinvigorates your hair after just one use. My sister helped me straighten my hair the day after I used this serum and couldn’t believe how healthy my hair felt! Did I mention that this serum is great for all hair textures and types? This serum smells as amazing as it works! It smells like a fresh, floral dream. I highly recommend this serum for those with dry hair in search of a solution. [I received this product in exchange for my honest review]

    Received a free product from Kerastase
  • I have tried several of their products over the years, and while I always love them, my only real complaint would be the price point. Aside from that, I used their Legacy 8H Magic Night Hair Serum last year and saw significant improvement in my hair's overall texture and health. I've tried their L'Huile Original Hair Oil before and it was nice, but I've discovered other brands that work just as effectively at a more affordable price. Nevertheless, if you're after a premium look and feel, this brand offers high-quality products that deliver results.

  • Some products contain ingredients that are not necessarily good for the hair, or at least very artificial, but the products deliver the effect promised on the packaging. In any case, I like this brand depending on what I want for my hair, and they smell great.