Kérastase Shampoo Review

About Kérastase

Kérastase Shampoo Review 1

If you’re wondering why French people are always flaunting perfect manes, Kérastase might be the answer. This luxury haircare brand makes products for both men and women, covering all hair types. And it’s been around for a long time! 

Kérastase has been featured by many notable media sources such as Vogue, InStyle, The Cut, and Glamour. It’s also endorsed by celebrities and famous hair stylists, including Lily Collins, Emily Rtajowski, Kristin Ess, January Jones, and Taylor Swift. 

It should come as no surprise that the brand has won awards by Elle and The Kit. Plus, their Instagram account boasts a following of over 1.5 million

So, does the brand live up to the hype? Keep reading, as this Kérastase shampoo review takes an in-depth look at some bestsellers, customer ratings, promotions, and more, to help you decide if these products are worth purchasing.

Overview of Kérastase

Kérastase Shampoo Review 2

Kérastase was founded in France in 1964 by François Dalle, who was previously CEO of L’Oreal. The brand aims to develop innovative products for that fresh-out-the-salon look. They source highly potent ingredients to solve a variety of hair concerns. 

Today, Kérastase’s headquarters are based in Paris, France, while their products are made in Spain. A statement by the company reads: 

We have a care-first philosophy since our birth. We work with the best hairdressers to provide to all women the ultimate solutions to care for their hair. At Kérastase, we believe there is not one single interpretation of beauty but an infinity. We enhance all types of beauty, cultures, visions…and of course, all types of hair.

With the brand’s backstory out of the way, this Kérastase shampoo review will now take a look at the initial pros and cons around the shopping experience. 


  • Professional quality haircare products at home
  • Reputable name in the beauty industry 
  • Free from sulfates, silicones, and parabens 
  • Inclusive of many hair types and concerns 
  • The brand is available in a variety of salons 
  • Free shipping on orders over $75
  • Many discounts and promotions offered 
  • Positive customer reviews


  • Some products are rather expensive 

Kérastase products are used in salons all over the world, but you can also purchase their treatments for at-home use as well. The brand is meticulously organized; they’ve separated hair concerns into various categories and curated special series. 

For example, the Kérastase Chronologiste line serves a different purpose than the Kérastase Genesis hair collection. In the end, they’re all created with the mission of giving you healthier locks. Keep reading, as we cover some popular treatments down below. 

Kérastase Hair Products Review

Kérastase offers a range of shampoos, serums, styling creams, conditioners, masks, oils, and more. Some of these products are specifically formulated for those with curly, fine, thinning, dry, or oily hair. 

Maybe you have a concern in mind, or you’re simply looking to fill some holes in your haircare routine. In any case, this Kérastase shampoo review will provide details on the brand’s best-selling hair products. See if anything stands out! 

Kérastase Bain Ultra-Violet Review

Maintaining that incandescent shade of blonde hair isn’t always easy. This Kérastase purple shampoo is the perfect solution to keep your mane brilliant and bright. The Bain Ultra-Violet contains bluish-violet pigments to counteract brass and yellow tones. 

This shampoo gives you a silky lather while it gently cleanses to remove sebum buildup. Its formula tones and enriches your color without stripping or weighing down hair. The Bain Ultra-Violet is ideal for grey, highlighted, or bleached strands. 

This product contains hyaluronic acid, which moisturizes your hair while strengthening and protecting. Edelweiss flower extracts tackle the frizz monster and give you that coveted shine. 

The 250 ml bottle of Bain Ultra-Violet costs $46. For similar products, browse through the Kérastase Blond Absolu line.  

Kérastase Masque Ultra-Violet Review

Kérastase’s Masque Ultra-Violet is another effective purple mask that neutralizes brassiness and unnaturally yellow tones. It gently lightens and brightens blonde hair, maintaining its golden glory for longer.

The Masque Ultra-Violet contains hyaluronic acid and edelweiss flowers to protect strands from environmental damage and seal in some moisture. It’s suitable for bleached hair as well, soothing and adding some bounce. 

This intense mask can be used weekly, or as often as needed. The brand recommends leaving it in for 5–10 minutes before rinsing it off thoroughly. The 200 ml Masque Ultra-Violet retails for $72.

Kérastase Sérum Thérapiste Review

The Sérum Thérapiste gives new life to damaged or brittle hair. This double-action treatment works to heal split ends while offering heat protection—it has you covered for up to 230°C.

This cream and binding serum stands out with ingredients such as the brand’s ‘resurrection sap’. It also contains a blend of 6 amino acids and wheat protein derivatives that smoothen and nourish. 

To use the Sérum Thérapiste, apply a couple of pumps onto towel-dried hair. Ensure that you’ve covered your strands from mid-lengths to ends, leave the product in, and blow dry when you’re ready. As a final touch, you can reapply to tame flyaways. 

This Kérastase resistance serum works hard to restore radiant hair. You can get 30 ml for $62.

Kérastase Serum Extensioniste Review

Healthy hair starts at the scalp. The Serum Extensionist is a leave-in treatment that strengthens fibers at the root. Its ultra-concentrated formula promotes softer, smoother strands that are balanced and purified. 

This Kerastase Extentioniste serum contains ceramides which help to wake up those hair follicles for growth. There is also creatine, an amino acid that penetrates deep to protect your scalp. Give yourself a rigorous massage with this product three times a week for long, luscious locks. 

The 50 ml Serum Extensioniste retails for $62.

Kérastase 8H Magic Night Serum Review

The 8H Magic Night Serum is an overnight treatment enriched with powerful nutrients. It travels deep into your hair fibres while you’re catching some zzz’s, so that you can wake up with super-touchable strands. 

This product hydrates hair for 8 hours straight, and fully absorbs without leaving residue behind. The pleasant fragrance also promotes a good night’s rest. It’s a perfect serum for those with chronically dry hair, or to use during winter months. 

Easily detangling fine hair while making forest-thick manes more manageable, the 8H Magic Night Serum turns back the clock on months of damage. It contains iris root extract and a combination of 5 vitamins for a silky finish. 

This 90 ml Kérastase Night Serum comes to $68. Simply apply 2–4 pumps from lengths to ends, and leave it overnight. 

Kérastase Cure Densifique Review

If you’re experiencing thinning, the Cure Densifique can come to your rescue. This scalp treatment is part of a series that helps support and maintain density. It can be used on all types of hair, including those with sensitive scalps. 

The Cure Densifique is hypoallergenic and free from parabens. You can apply 1 vial daily on towel-dried hair over 3 months to see results. We’ll outline some usage instructions for readers to follow along below: 

  1. Snap off the top of the vial
  2. Clip on the comb applicator
  3. Press the dome of the vial 
  4. Apply the Cure Densifique treatment to scalp
  5. Part hair in your normal styling direction using the comb
  6. Massage your scalp 
  7. Spread product evenly along the lengths of your hair  

For the best results, use the Kérastase Densifique Shampoo and the rest of the series. In a study, users reported that they observed thicker, more voluminous hair. The Cure Densifique contains key ingredients such as Stemoxydine® , complex glycan, vitamins B3, B5, B6, and texturing polymer. 

The Cure Densifique is not available for purchase on the Canadian website, but can be found in a salon near you. 

Kérastase Initialiste Review

Initialiste is one of Kérastase’s most coveted products. This advanced scalp and hair serum fortifies weak strands by boosting cellular metabolism. A study conducted by the brand proved that users experienced 93% less breakage during brushing. 

Improving hair quality to restore its glossiness and vivacity, this weightless serum is formulated with SP 94 (a gluco-peptide) and 6 amino acids. The resurrection sap and wheat protein derivatives protect and preserve the integrity of your cuticles. 

The Initialiste serum has a delicate scent that makes hair smell clean and luxurious. Apply 2 pumps to fine hair, and 4 for thicker locks. A 60 ml bottle costs $65.

Kérastase Masque Thérapiste Review

The Masque Thérapiste delivers immediate relief from strands that are crispy to the touch. It replenishes over-processed, brittle hair follicles to restore some softness. 

This velvety mask contains a Fibre Kap™ complexe, 6 amino acids, and SP 94 to active KAPs synthesis. Massage the product into dried hair and complete the rest of your routine. Then, wash it off. For consistent results, use it daily after showering. 

This Masque Thérapiste comes in a 200 ml size for $72.

Kérastase Maskératine Review

Fried, out-of-control locks can be a thing of the past with the Maskératine. This is a Kérastase curly hair treatment that protects from humidity and makes styling easier. 

This fluffy, conditioning mask gives you slick, glistening hair. It’s designed with morpho-keratine technology and lipids that prevent further damage. When you’re enjoying your next at-home spa day, massage this mask into roots and ends before rinsing.  

The 200 ml Kérastase discipline Maskératine retails for $72

Kérastase Reviews: What Do Customers Think?

Kérastase Shampoo Review

This Kérastase shampoo review uncovered some testimonials online to find out what customers were saying about the brand. We encountered mostly positive feedback on multiple sites, while negative comments were difficult to come by.  

MakeupAlley hosts a rating of 4/5 stars for Kérastase over 283 products and 4,324 comments total. The Initialiste serum received 4/5 stars from 20 reviews. One customer wrote, “It gives my hair life!” 

Others believed that it made their scalp and hair healthier, finding it to be a transformative product. A buyer echoed these comments, “My hair is no longer dry and damaged, and it’s amazing that products can actually do this! They are so good, that there is little effort involved!”  

Kérastase shampoo reviews on Reddit products stated that the products were worth purchasing. As this user puts it, “I have some products for special occasions and I can say that Kérastase gives me the best hair I ever had. The Masquintense for thick hair and the Résistance lines are amazing…I tried Moroccanoil, K Pak, Absolut Repair, Orofluido and many others, but anything Kérastase is on a higher level.” 

Although the products are expensive, they appear to deliver on quality. The compliments continue on Sephora, where the Masque Ultra-Violet has a rating of 4.1/5 stars based on 105 reviews. Users agreed that it helped to keep their golden locks cool-toned. One person noticed: 

It makes my blonde hair nice and bright, and even after leaving it on for more than 10 minutes it doesn’t leave any purple behind, even though my hair is very dry. Also it isn’t over-drying like most purple conditioners/masks.” 

The Reflection Conditioner for Color-Treated Hair seems to be one of the lowest rated Kérastase products on Sephora, ringing in at 3/5 stars based on 31 reviews. A customer shared, “I highly do not recommend for how much product you get. Unless you got money like that, go for it. I have extremely long and thick hair (down to my tailbone) and I legit finished this in three washes.” 

Is Kérastase Worth It?

Kérastase Shampoo Review

This Kérastase shampoo review believes that the brand has won awards for a reason. Buyers raved about how much better their hair looked and felt after using their products. They’re endorsed by celebrity stylists as well. 

We’re loving the fact that Kérastase has created different treatments to take the diversity of hair into account. Whether your strands are prone to breakage, or you’ve bleached them into oblivion, there’s something in store for you. 

It’s important to address the accessibility of these shampoos, conditioners, and masks. Some users were disappointed that there’s not enough product in each bottle, or that the items are too expensive to repurchase.

This Kérastase shampoo review recommends saving the treatments for days when you need to revitalize your mane. The brand also has many discounts to take full advantage of. All in all, we encourage readers to check their haircare collection out. 

Kérastase Promotions & Discounts 

Kérastase Shampoo Review

This Kérastase shampoo review found a few different promotions on their website. Take a look below: 

  • Free shipping and complimentary travel-size sample with all orders (use code EU21
  • Give 20%, get 20% through their referral program 
  • Complimentary diffusers with orders over $85 
  • Bundle products to save 10% 
  • Receive 20% off after signing up for SMS alerts 
  • Save 10% through the Auto-Replenishment service 

Where to Buy Kérastase

Kérastase Shampoo Review

Buyers can find the company’s complete haircare line at Alternatively, you can use their online store locator to find the nearest salon which carries their products.

Kérastase also has several retail partners such as:

  • Sephora
  • Amazon
  • Walmart
  • Hudson’s Bay
  • Beauty Sense 
  • And more! 


Kérastase Shampoo Review

What is Kérastase treatment? 

The company has developed several series that address a spectrum of common hair problems. For example, the Kérastase K Water treatment reawakens dull locks to leave them glossier and more manageable.  

This Kérastase shampoo review came across specific concentrates and boosters that repair damage. Some serums can be left overnight, while others have to be rinsed out after a few minutes. You can even build an entirely new haircare routine from scratch with one of their curated series. 

Is Kérastase owned by L Oreal? 

Yes, this Kérastase shampoo review found that the company is owned by the L’Oreal Group Professional Products Division. 

Is Kérastase sulfate free?

We’re happy to report that Kérastase products are formulated without sulfates.

Does Kérastase use parabens? 

No, Kérastase does not use parabens in their products. 

Is Kérastase good for your hair?

Yes, this Kérastase shampoo review found that their products are good for your hair. These salon-quality shampoos, oils, masks, and conditioners are created with a powerhouse blend of clean ingredients. 

Is Kérastase bad for your hair? 

Kérastase products are formulated without sulfates, silicones, or parabens. For best results and to avoid any damage, we recommend adhering to their usage guidelines. For example, Cure Densifique is only intended to be used on thinning hair over a 3-month period. 

What is Kérastase’s Shipping Policy?

Kérastase offers free ground shipping on all US orders. Orders are processed within 1–2 business days and are shipped Monday to Friday. 

What is Kérastase’s Return Policy?

Kérastase accepts returns within 30 days of delivery. Items have to be unused and unopened in order to qualify. Follow these simple steps to start the return: 

  1. Select ‘Online Orders’ from the drop down menu on their website
  2. Specify your reason for returning and provide the order number 
  3. Mail your package to the following address: 

L’Oréal Canada—Return Department
3500 rue Douglas-B.-Floreani, Door 31-32
Saint-Laurent, QC
H4S 2B9

Refunds are generally processed within 24–48 hours, and appear in your account after 3–5 days. Unless the item had defects or something was missing from the order, buyers are responsible for any shipping charges. 

For any questions about the process, this Kérastase shampoo review recommends contacting customer service. 

How to Contact Kérastase

If you wish to contact their team after reading this Kérastase shampoo review, get in touch via:

  • Phone: 1-866-537-2782 (Monday to Friday, 9 AM–5 PM EST)
  • Email: [email protected] 
  • Fill out the online contact form 

Need some more help on your hair care journey? Here are a few options to consider:


Madison Reed

American Crew


Ask the community or leave a comment

Your email address will not be published.

This field is required