Nice product the best

[This review was collected as part of a promotion.] Excellent product makes my hair grow it up and it’s the best

Originally posted on  kerastase-usa.com

Not bad!

This is not a bad serum i just expected more! Maybe I brought the wrong serum for my hair !!

Originally posted on  kerastase-usa.com

Magical

This is another Kerastase magical potion. It works so well at helping my hair get back to healthy!

Originally posted on  kerastase-usa.com

Wow

[This review was collected as part of a promotion.] Very good product ai recommend .I like very much the smell

Originally posted on  kerastase-usa.com

The best serum

[This review was collected as part of a promotion.] My scalp has never been healthier and I have so much new hair growth!

Originally posted on  kerastase-usa.com

hair serum

[This review was collected as part of a promotion.] i like to use this hair serum. it makes my scalp so clean healthy

Originally posted on  kerastase-usa.com

will repurchase

[This review was collected as part of a promotion.] This has made a big difference in my hair. Of the products I’ve tried, this is one I will keep repurchasing.

Originally posted on  kerastase-usa.com

Love

These products work with 1 use!!!!!!!!!!!!!!!!!!!!

Originally posted on  kerastase-usa.com

Not too thick or sticky

Feels nice and isn’t too thick or sticky. I put it on my scalp with wet hair and I don’t notice it in my hair at all, even without blow drying

Originally posted on  kerastase-usa.com

Soothing Scalp

[This review was collected as part of a promotion.] This product makes my scalp more comfortable and relaxed.

Originally posted on  kerastase-usa.com

Serum

Me encanta, es lo mejor que e usado, un olor increíble

Originally posted on  kerastase-usa.com

Hair feels silky

[This review was collected as part of a promotion.] I’ve been on a journey to improve my hair and scalp, and this serum makes my hair so soft and silky. Great product for damp or dry hair.

Originally posted on  kerastase-usa.com

Very good

[This review was collected as part of a promotion.] this makes my hair feel soooo fresh throughout the day i love it

Originally posted on  kerastase-usa.com

Excellent little product for hair in need of TLC!

[This review was collected as part of a promotion.] Love this product! I have thicker hair as does my daughter but struggle with length especially after color treatments. We started using this Kérastase line of products & added this into our routine & can already see (and feel) the results! You only need a little so although the bottle is small don’t let it deceive you, it should last quite a while! :)

Originally posted on  kerastase-usa.com

Love it

[This review was collected as part of a promotion.] It saved my hair length! Great product! My scalp feels great after applying it. I recommend it if you are looking to grow your hair and avoid breakage

Originally posted on  kerastase-usa.com

Awesome

I use this serum and the anti-breakage one and they work so well!

Originally posted on  kerastase-usa.com

nice product

[This review was collected as part of a promotion.] it make my scalp feel fresh and clean , this helps with my hair growth a lot

Originally posted on  kerastase-usa.com

EXCELENTE

[This review was collected as part of a promotion.] He notado en las últimas semanas mi cabello más fuerte y más tupido que antes y solo llevo 3 semanas de uso, súper recomendado.

Originally posted on  kerastase-usa.com

Amazing serum

Great smell. Looking forward to see my hair grow and get healthy

Originally posted on  kerastase-usa.com

Great

I love the smell and result after using it’s great for all topes of hair

Originally posted on  kerastase-usa.com

Healthy scalp

I was experiencing hair fall, and I used this and it helped growth SO much! Made my hair feel great.

Originally posted on  kerastase-usa.com

Still testing

Overall this seems like a nice product but I've been pretty inconsistent in using it. I happen to love many of the Kerastase products so I believe with consistent use, this will really help my scalp.

Originally posted on  kerastase-usa.com

cool milky serum

ive enjoyed using this serum. its lightweight and milky. i do think it is making a difference but i have added a lot of products to my routine lately so im not 100%

Originally posted on  kerastase-usa.com

Help with Hair Growth

I've struggled my whole life with growing thick pretty hair. This serum helps even with my fragile bleached hair! I have thicker stronger hair!

Originally posted on  kerastase-usa.com

Works!!

[This review was collected as part of a promotion.] This product for sure has helped my hair grow healthier.

Originally posted on  kerastase-usa.com

Good

Took care of buildup which was my reason for purchase

Originally posted on  kerastase-usa.com

Love it!

[This review was collected as part of a promotion.] Only putting 4 stars because I haven't used it long enough to know if it helps grow hair; but the smell is amazing and it doesn't make my hair look oily at all!

Originally posted on  kerastase-usa.com

Great consistency! Thick and not runny like others

I find this scalp serum very soothing. It’s creating a bit of flakiness but I don’t mind, will adding a scalp scrub to my routine.

Originally posted on  kerastase-usa.com

EXCELLENT PRODUCT

[This review was collected as part of a promotion.] been using this product for the past year and see results

Originally posted on  kerastase-usa.com

Love The Thick Consistency

I style my hair by straightening it, and I love using this serum on second day hair. Leaves hair soft without flyaway.

Originally posted on  kerastase-usa.com

Scalp Serum

This scalp serum is a game changer. My scalp feels extremely hydrated yet not oily. I have noticed my hair over time become softer and more moisturized. I highly recommend

Originally posted on  kerastase-usa.com

Awesome serum

This serum is amazing, I could see the difference in the length and fullness in my hair! I recommend this.

Originally posted on  kerastase-usa.com

Awesome!

[This review was collected as part of a promotion.] Wonderful product! Can’t live without it! I’ve been buying this for a long time!!

Originally posted on  kerastase-usa.com

Another favorite

I use the blue for all my hair..this is great for getting your hair healthy and hair growth. I love it..its not sticky but more of a water consistent syrum..all the smells are the best

Originally posted on  kerastase-usa.com

Great Hair and Scalp Serum!

I love the Serum Extentioniste Scalp & Hair Serum! My scalp feels revitalized, and my hair looks shinier and stronger.

Originally posted on  kerastase-usa.com

Hair is Soft

Less breakage and hair soft. Can't wait for the results but so far my hair feels soft and smooth

Originally posted on  kerastase-usa.com

The best hair growth serum

Within 3 weeks of use I notice an incredible difference and so did my hair dresser. This stuff is amazing!

Originally posted on  kerastase-usa.com

like it a lot

different than other scalp serums in that your hair doesnt feel nasty

Originally posted on  kerastase-usa.com

Light and easy to distribute

This is my second time buying this product (the first purchase lasted about 6 months, I use a couple drops regularly, and I love it so much. The scent alone had me addicted from first use, it smells so good when you apply it and amplifies so much throughout blowdrying. I am addicted. BUT ALSO... It just takes a couple drops on your part lines and then work through the roots with your fingers, its a light serum that doesn't make my thin hair feel weighted down. It leaves my hair with a shiny (not greasy) finish and has gradually added to my root strength. Will continue to purchase!!

Originally posted on  kerastase-usa.com

Seems to work so far

I use this about once a week to help repair my dry, damaged hair. I’ve noticed a smoothness of my split ends and all of my hair. My scalp always feels dry, not flaky. This serum helps with that and doesn’t make my scalp oily. Overall I am satisfied with this product.

Originally posted on  kerastase-usa.com

BEST helps

This helps strength your ends, and helps your hair to grow fast

Originally posted on  kerastase-usa.com

Very effective for regrowth

Really effective for regrowth I have been using this serum for the last two weeks and I see lots of hairs popping everywhere on my head, even the sides where I had weaker hair is filling in nicely, the key is to use it on freshly washed scalp and be consistent, highly recommended.

Originally posted on  kerastase.ca

Healthier hair from first use

My hair looks better even straight out of bed! Hair has grown longer, softer smoother. I didn’t this this was possible

Originally posted on  kerastase-usa.com

Feels great on the scalp!

[This review was collected as part of a promotion.] Sometimes I have an itchy scalp, and this calms it down immediately . And it smells wonderful!

Originally posted on  kerastase-usa.com

Didn’t Notice Anything

Nice scent but I didn’t notice my part fill in better.

Originally posted on  kerastase-usa.com

Helps with color treated light blonde hair

[This review was collected as part of a promotion.] This product is a staple of mine- I have used it for roughly two years now. I have longer color treated hair. I love how after using it makes my hair softer.

Originally posted on  kerastase-usa.com

Love this line

[This review was collected as part of a promotion.] I love the extentioniste hair line. I've used multiple of their products and love this hair growth serum. Its light and does not leave any buildup in your hair. I combine with my rosemary oil and the combo does well for hair growth/strength.

Originally posted on  kerastase-usa.com

Topissime!

J'ai acheté ce produit récemment, je l'utilise a chaque shampooing. Mes cheveux ont déjà beaucoup poussés après un mois d'utilisation, et ils ne sont que plus beaux et plus soyeux a chaque fois. Je recommande.

Originally posted on  kerastase.fr

Great product

I have only been using this product for about a week so I am not sure yet about how it works for length, but so far it makes my hair feel so good and smells amazing. I also have really thin, fine hair that gets greasy very quickly, and every product that I have tried always make my hair look and feel greasy even when I only use a small amount, but not this. It doesn’t leave it greasy at all, just soft and feels healthier. I definitely do wish the bottle was bigger for the price but if it winds up helping my hair growth it will be worth it because so far nothing else has worked, not even the really expensive serums. I will check back after a month or two to give a review on how it works for length, but so far its a great product.

Originally posted on  kerastase-usa.com

LOVEEEEEE

love love loveeeeeeeeeeeee, it is so good and i wishh it was bigger but so worth it

Originally posted on  kerastase-usa.com

Love

I love Kerastase products, love the scent of this and directions are easy, I think it's still too soon to actually tell a difference in length, but regardless my hair always feels wonderful after applying these products

Originally posted on  kerastase-usa.com

Bonjour je n ai rien vu qui a changer sur mes cheveux. Moi je trouve qu'il est sans plus.

Originally posted on  kerastase.fr

J'aime beaucoup!

Super produit encore tôt pour voir de grands résultats mais mes cheveux semblent plus en santé!!

Originally posted on  kerastase.ca

love it

[This review was collected as part of a promotion.] so great really helps with hair growth and healthy hair growth

Originally posted on  kerastase-usa.com

Love it, great product

[This review was collected as part of a promotion.] my hair started to grow pretty well after using it

Originally posted on  kerastase-usa.com

Beauty from the experts!

I have always thought Kérastase has wonderful products, but quite honestly, have been away for a while. When I went back to check out any new products to me, I was once again impressed with how much my hair improved with the oil added softness, sheen, and volume. I love it!!!

Originally posted on  kerastase-usa.com

Highly recommended for thinning hair & growth.

This is the best ever product I have used for hair growth. I have been using for the last 2 month and have visible hair growth.

Originally posted on  kerastase-usa.com

Best serum ever

This product really works. Its my third time buying this, my hair has never been so long and health. Best serum ever

Originally posted on  kerastase-usa.com

Excellent product

I apply this to my scalp and roots once a week and my hair has gotten thicker and longer over the last six months that I've been using this great smelling product!

Originally posted on  kerastase-usa.com

Great product

I love it! I can really feel a difference on my scalp and it smells really good 😊

Originally posted on  kerastase-usa.com

The Money maker of this line

I use this entire Extentioniste line, but this is the money maker! I typically use day before I wash, as I do feel it makes my hair/scalp a bit oily, but I notice a diff when I use/don't. If you use this line- you should not skip this step!

Originally posted on  kerastase-usa.com

Serum Extentioniste is really cool for my hair

Serum Extentioniste is really cool for my hair type

Originally posted on  kerastase-usa.com

Waste of money

I don’t even remember what effect I’m supposed to get from this. Have not noticed anything.

Originally posted on  kerastase-usa.com

Unsure of the benefits

[This review was collected as part of a promotion.] I can only give 3 stars as I so far has not seen any difference, but will continue the use it to see if there will be a difference long term.

Originally posted on  kerastase-usa.com

Refreshing

Love how this soothes my scalp and doesn’t leave a terrible residue throughout my hair after applying. My only complaint is this product should come in a bigger bottle!

Originally posted on  kerastase-usa.com

Amazing!

[This review was collected as part of a promotion.] First time using this product and love it!!!!!!!!!

Originally posted on  kerastase-usa.com

Love it!!!

This serum smells amazing and makes my hair feel wonderful!

Originally posted on  kerastase-usa.com

Love it!

Love this product! Results take time but it does work!

Originally posted on  kerastase-usa.com

great hair

Great product. After lost hair from Covid, this product made the hair I had left grow, a lot!

Originally posted on  kerastase-usa.com

Still trying

Just started using this product and seems to help my hair breakage

Originally posted on  kerastase-usa.com

Did not like

Too strong smell. Didn't see any results, waste of money.

Originally posted on  kerastase-usa.com

Best hair care experience

[This review was collected as part of a promotion.] I love this Serum, I felt and saw a difference in my hair and scalp after the first use. I purchased it to use as part of my hair repair journey along with the balm in shampoo Therapiste, Length strengthening Conditioner Extensioniste and Serum Therapiste.

Originally posted on  kerastase-usa.com

10/10

Great product use this with the shampoo and conditioner for great results! My hair has never felt so soft and silky

Originally posted on  kerastase-usa.com

The worst service

[This review was collected as part of a promotion.] Different product received and no shipping label to send it back

Originally posted on  kerastase-usa.com

Scalp serum really works!

I love this product! It helps to make my hair fuller and my scalp feel better.

Originally posted on  kerastase-usa.com

WOWWWWWWWW my hair feels amazing

loved it. didn’t make my hair feel weighed down definitely recommend .

Originally posted on  kerastase-usa.com

Worth It

Smells AMAZING and can already see a healthy difference.

Originally posted on  kerastase-usa.com

Love this serum

It promotes a healthier roots and hair for me. My hairs are armpit length but thick, so i need one drops to each six spots i chose. This size last me for 4 month with usage of 2-3 times a week.

Originally posted on  kerastase-usa.com

Feels nice

[This review was collected as part of a promotion.] I like it, feels nice. It smells good, and really adds to my self care routine

Originally posted on  kerastase-usa.com

Great for dry scalp

During winter, my husband and I both experience drying of our scalps. This serum helps relieve the dryness and itch. I would recommend, but the bottles is relatively small for the price hence the one star reduction

Originally posted on  kerastase-usa.com

It didn't help me much

It didn't help me much as much as I tried applying it regularly

Originally posted on  kerastase.ca

Serum extentioniste scalp and hair serum

Bought this serum a few weeks ago. Can’t say that I noticed ch difference in my hair. My hair hasn’t gotten stronger, it keeps falling out. It’s quite a small bottle for such a price and didn’t work for me, so I probably won’t buy again. It does smell marvelous though!

Originally posted on  kerastase-usa.com

I don’t recommend

I don’t recommend as it is too expensive for what it is. I don’t see any results. Difficult to apply.

Originally posted on  kerastase.ca

Un réveil de vitalité

Ce sérum a une odeur agréable, celui-ci a redonner de la vitalité à mes cheveux.

Originally posted on  kerastase.fr

Yahhhooouu!

C’est vraiment extraordinaire ce produit. C’est une très belle sensation sur le cuire chevelu.

Originally posted on  kerastase.ca

So far so good!

So far so good! Loving the regrow that is appearing. I am looking forward to the second bottle. The scent is so light and fresh. Feels great on the scalp.

Originally posted on  kerastase.ca

Feels clean and refreshing

[This review was collected as part of a promotion.] Since using this my scalp feels better. My scalp gets itchy after a day or two of no washing. It hasn't anymore and it feels refreshing after applying.

Originally posted on  kerastase-usa.com

Pleased with purchase

This serum smells amazing, does not irritate the scalp and does not leave the hair looking greasy. I am not sure if I can give 100% of the credit to the serum for the growth of new hair, as I have also been taking other measures like rosemary oil treatments and taking supplements like biotin...but it is definitely part of my new hair care regime and I certainly believe it has helped.

Originally posted on  kerastase.ca

Works best

Among all serums, works best with using every other day. Highly recommend.

Originally posted on  kerastase-usa.com

Great product

I love how it doesn’t leave your hair greasy. I add even to dry hair in between washes and it doesn’t weigh the hair down and scalp gets a refresh. I am looking forward to noticing the difference in hair strength

Originally posted on  kerastase-usa.com

Leaking the box.

I have used kerastase products since last year but this time when i touched the case, it was leaking. I dont know if some one used it before or this one has no cover tape under the pump. Anyway i was not happy.

Originally posted on  kerastase.ca

Best Serum

I've been using this serum for about two weeks and let me tell you, this is the best thing that`ve ever tried. My hair was so weak and falling out so much and since I've been using this magic serum, my hair have been stronger and it stop falling out!!!! Give it a try!

Originally posted on  kerastase-usa.com

GREAT Product

This is my favorite product from Kerastase!! It is the first product I have ever found that truly helps my hair grow fast. My hair usually struggles at growing but using this product has been life changing.

Originally posted on  kerastase-usa.com

Amazing

Makes my hair manageable, strengthens my long locks, and makes it shine

Originally posted on  kerastase-usa.com

Sérum Extentioniste Scalp & Hair Serum

This product as performed miracles on my hair. It’s a must have! My hair is softer, healthier, more manageable and GROWING!!

Originally posted on  kerastase-usa.com

Keep hair from falling off

The product is very helpful with keeping the hair from falling off. And the price is reasonable.

Originally posted on  kerastase-usa.com

Serum

I love this product. It doesn’t make your hair oily or greasy. It’s perfect and it also smells good! It’s too early to know if it really does anything but so far so good.

Originally posted on  kerastase-usa.com

Healthy hair serum

My hair looks healthier and shiny when I use this serum. I will definitely purchase again.

Originally posted on  kerastase-usa.com

Une odeur à tomber

Honnêtement je ne sais pas si ce produit aide vraiment à la pousse, par contre , il donne un volume incroyable et surtout une odeur … à tomber ! Mon conjoint n’as de cesse de me complimenter sur l’odeur de mes cheveux, et j’avoue y prendre goût! J’achète ce sérum depuis bientôt un an maintenant, et j’en Suis folle!

Originally posted on  kerastase.fr

Dry scalp? This product is your savior

I’ve been dealing with dry scalp and tried washing my hair with not so hot water and nothing would work. My dandruff/dryness is completely gone after 2 uses! This is definitely a miracle worker.

Originally posted on  kerastase-usa.com