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Serum Thérapiste Hair Serum - Oils & Serums | L'Oréal Partner Shop
Serum Thérapiste Hair Serum - Oils & Serums | L'Oréal Partner Shop
Serum Thérapiste Hair Serum - Oils & Serums | L'Oréal Partner Shop
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Serum Thérapiste Hair Serum - Oils & Serums | L'Oréal Partner Shop
Serum Thérapiste Hair Serum - Oils & Serums | L'Oréal Partner Shop
Serum Thérapiste Hair Serum - Oils & Serums | L'Oréal Partner Shop
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Description

Hair serum Sérum Thérapiste is a double action split end treatment and heat protection serum for very damaged and split ends hair. Its innovative formula associates a repairing cream and a binding hair serum for a thermo protection reaching up to 230°C making it a great heat protection serum that also offers split end repair. Resurrection Sap contained in this hair serum offers split end repair while regenerating hair strands leading to minimize hair breakage.

 

How To Use
  • Apply to washed and towel-dried hair.
  • Massage onto lengths and ends.
  • Proceed to blowdry. Leave in.

Can be used in construction on wet hair and also as a finishing touch on dry hair.

Ask more information about this product
Ingredients
CYCLOPENTASILOXANE AQUA / WATER / EAU DIMETHICONOL DIMETHICONE CETEARYL ALCOHOL PHENYL TRIMETHICONE AMODIMETHICONE PHENOXYETHANOL POLYQUATERNIUM-37 TRIDECETH-5 PROPYLENE GLYCOL DICAPRYLATE/DICAPRATE STEARETH-20 CETYL HYDROXYETHYLCELLULOSE LINALOOL GLYCERIN 2-OLEAMIDO-1,3-OCTADECANEDIOL CITRONELLOL TRIDECETH-10 PPG-1 TRIDECETH-6 GERANIOL GLYCINE ARGININE PROLINE TYROSINE GLUTAMIC ACID CHLORHEXIDINE DIGLUCONATE SERINE BENZYL ALCOHOL HYDROXYPROPYLTRIMONIUM HYDROLYZED WHEAT PROTEIN ISOEUGENOL SAFFLOWER GLUCOSIDE ALPHA-ISOMETHYL IONONE TREHALOSE TAMARINDUS INDICA SEED POLYSACCHARIDE MYROTHAMNUS FLABELLIFOLIA LEAF EXTRACT PARFUM / FRAGRANCE.

Rating & Reviews

935 reviews
5 stars
( 793)
4 stars
( 70)
3 stars
( 29)
2 stars
( 15)
1 star
( 28)
5
4.7 / 5 stars

Eli2225

5

1.777932011E12 04/05/2026

Amazing product

[This review was collected as part of a promotion.] Te deja el cabello super suave y con un aroma delicioso

Originaly posted on  kerastase-usa.com

Ashleev

5

1.777761008E12 02/05/2026

My Staple Product

[This review was collected as part of a promotion.] This is a must have for mechanical damage. I use it in my daughter’s hair who is very hard on her hair and it has done wonders for keep length!

Originaly posted on  kerastase-usa.com

Nelly4498

5

1.777718709E12 02/05/2026

Amazing

I was very skeptical about trying a new serum, but this one is amazing for non-wash hair days. It helps maintain moisture and gives my ends a soft and shiny appearance. 🫶🏽

Originaly posted on  kerastase-usa.com

NadyaGodoy

5

1.777818612E12 03/05/2026

Lightweight but deeply nourishing

Kérastase Résistance Sérum Thérapiste has become one of my absolute favorite products for repairing and protecting my hair. I bought it together with the Masque Thérapiste, and the serum truly completes the treatment. It delivers instant softness, strength, and smoothness without weighing my hair down. It protects up to high temperatures, which is essential for blow‑drying or flat‑ironing. The cream + serum combination seals the ends beautifully and reduces the look of split ends. My ends look healthier and feel softer throughout the day. This serum is a must‑have if your hair is damaged or needs extra protection. It restores softness, reduces breakage, and gives a healthy, glossy finish. I absolutely love it and highly recommend it as part of the Résistance Thérapiste routine.

Originaly posted on  kerastase-usa.com

Cynthianils

5

1.777684505E12 01/05/2026

Great for highlighted and long hair

[This review was collected as part of a promotion.] I can feel the product acting in my hair inmediatly , for long hair, and split ends

Originaly posted on  kerastase-usa.com

TC2006

5

1.77767461E12 01/05/2026

Great product!!!

Haircut in a bottle!!! Works wonders on fine damaged or frizzy hair

Originaly posted on  kerastase-usa.com

Pettish

3

1.778085518E12 06/05/2026

Yesssz

Yessss but with little expectations. It smells amazing.

Originaly posted on  kerastase-usa.com

Reply from Consumer Care Center 06/05/2026

We are so happy to hear that the scent exceeded your expectations! The "Fine Fragrance" experience is a signature part of the Chronologiste collection, and we're thrilled you love it. Thank you for the "Yessss" and for sharing your enthusiasm with us!

Tarync

5

1.777820411E12 03/05/2026

Love this stuff!

[This review was collected as part of a promotion.] Makes my hair so smooth and smells incredible. Will be repurchasing!

Originaly posted on  kerastase-usa.com

Lilly300

4

1.777572913E12 30/04/2026

Great smell

I like the product itself, the smell and how improved my hair. I didn’t like the packaging though

Originaly posted on  kerastase-usa.com

NouhaIla

5

1.777260608E12 26/04/2026

Amazing

[This review was collected as part of a promotion.] Love this product smells so goood highly recomended

Originaly posted on  kerastase-usa.com

Krukle

5

1.777383022E12 28/04/2026

Resistance Theerapist

This product leaves hair smelling scrumptious and looking healthy and shiny. One of my favorite prosixts in the Keratase line.

Originaly posted on  kerastase-usa.com

Thathali

5

1.777046414E12 24/04/2026

Excellent

This is my absolute favorite product!!! 🤍 It leaves my hair feeling so soft, smooth, and healthy every time I use it. I’ve noticed such a difference since I started using it—definitely a must-have in my routine!

Originaly posted on  kerastase-usa.com

KSims26

5

1.777383023E12 28/04/2026

So worth it

[This review was collected as part of a promotion.] This is honestly one of the best hair products I’ve used. It smooths my hair and keeps it looking healthy, especially the ends, without ever making it feel greasy or weighed down. I’ve noticed a real difference in how soft and strong my ends feel. You only need the smallest amount, so it lasts pretty long. Oh and I love the clean scent.

Originaly posted on  kerastase-usa.com

Ashley333

5

1.777383022E12 28/04/2026

Great product

A great product for damaged hair! Always makes my hair feel so soft after using.

Originaly posted on  kerastase-usa.com

Ninoska

5

1.776883515E12 22/04/2026

Omg the best serum ever , I’ve been using it 5 yea

[This review was collected as part of a promotion.] The best serum , it really repairs your hair and give this healthy looking. 100% recommends for all hair types

Originaly posted on  kerastase-usa.com

tlcmdc75

5

1.77678902E12 21/04/2026

Amazing Product

[This review was collected as part of a promotion.] I absolutely love this product.. First introduced at my hair salon, now on my 3rd bottle.. Makes my hair feel so soft and looks shiny!.

Originaly posted on  kerastase-usa.com

Healing hair

5

1.77662431E12 19/04/2026

Miraculous product

This product makes my hair feel like a woman in the 20s. I’m 70.. I prefer longer hair.. My hair is thin at this product at shine and I love the smell..

Originaly posted on  kerastase-usa.com

RuthsMom

5

1.776661208E12 20/04/2026

Best Serum I've Ever Used

I began using this serum when I had severe heat damage, but I've continued to use it since I color my hair. It makes my hair so much stronger and healthier! This will always be in my rotation!

Originaly posted on  kerastase-usa.com

Loriaa

5

1.776301206E12 15/04/2026

Love it!

I love this serum. My hair was super dry and damaged and this has really helped. My hair feels super soft and way healthier

Originaly posted on  kerastase-usa.com

Kier222

5

1.776219307E12 14/04/2026

Hair so soft

Love this- soft/smooth/shine without weighing my hair down.

Originaly posted on  kerastase-usa.com

Lauren Kelly

5

1.776714312E12 20/04/2026

Best on wet hair!

I had to re purchase! I put it on wet hair and let my hair air dry - works so well!

Originaly posted on  kerastase-usa.com

JosephG

5

1.776355217E12 16/04/2026

Magical serium

Makes hair silky, healthy, and shinny. The product goes on very smoothly, last all day, and has a very clean smell.

Originaly posted on  kerastase-usa.com

Laylla

5

1.77609601E12 13/04/2026

Stronger, Healthier Hair Instantly

I love the Kérastase Résistance Thérapiste Hair Serum because it instantly makes my hair feel smoother, stronger, and more protected from damage. It helps repair and seal split ends while restoring softness, so my hair looks healthier and less brittle over time.

Originaly posted on  kerastase-usa.com

AlisonRR

5

1.776063607E12 13/04/2026

Wildly satisfied with this product

Not only is this treatment everything I was looking for, it also does not contain any ingredients that will clog my pores in case it touches my skin. 10 out of 10.

Originaly posted on  kerastase-usa.com

Anonymous

5

1.776144607E12 14/04/2026

Awesome serum for split ends!

[This review was collected as part of a promotion.] This product is a MUST have! Great texture, awesome scent and unbelievable results! It really helped my split ends look better and sealed them after cutting. I just love how it makes my hair feel so much stronger and shinning. I just love it!

Originaly posted on  kerastase-usa.com

Mlprado

5

1.775949308E12 11/04/2026

Excellent day serum

[This review was collected as part of a promotion.] I have tried this for 3 weeks as a finish touch and leaves my hair shine and softly

Originaly posted on  kerastase-usa.com

Jojobaby

5

1.775934007E12 11/04/2026

Silky and smooth

[This review was collected as part of a promotion.] Love this product so much. Sily and smooth smells so good too. Not greasy and sticky

Originaly posted on  kerastase-usa.com

LuxeHairLover

5

1.776044708E12 12/04/2026

Amazing

[This review was collected as part of a promotion.] I usually use this in dry hair before using heat! - it gives my hair instant hydration and glow!

Originaly posted on  kerastase-usa.com

BeautyAZ

5

1.775610914E12 07/04/2026

Must buy

This product I bought for the first time to help my processed hair after showering my hair feels very dry and heavy but as soon as I put this product on only 2 pumps it’s a miracle worker detangle smells great and helps repair my damaged hair

Originaly posted on  kerastase-usa.com

Montana H

5

1.775673917E12 08/04/2026

Flawless Hair

[This review was collected as part of a promotion.] The smell is my favorite! And it makes my hair feel so good.

Originaly posted on  kerastase-usa.com

Robbins

5

1.775596513E12 07/04/2026

You need this!

I use hot tools occasionally and this product is my secret! I don’t want to stop curling my hair for special occasions and I find the hot tools work best for the look I want but at my age it’s not ideal. This product does a great job protecting my hair when I want to add curls my way!

Originaly posted on  kerastase-usa.com

Nana26

5

1.775363407E12 05/04/2026

Great product

Great smell always get compliments on how hair smells

Originaly posted on  kerastase-usa.com

JMVgirl

5

1.775314813E12 04/04/2026

Love Love Love

[This review was collected as part of a promotion.] This makes my hair so soft and shiny!!! The smell is amazing too!

Originaly posted on  kerastase-usa.com

minne2003

4

1.775100608E12 01/04/2026

good

[This review was collected as part of a promotion.] i haven't noticed a huge difference long term but it does make my hair feel slightly less damaged when i use it

Originaly posted on  kerastase-usa.com

Carla Will

5

1.775090707E12 01/04/2026

Great

Helped me recover my dry hair. I use all the collection and it’s working great!

Originaly posted on  kerastase-usa.com

Lena H

5

1.775084407E12 01/04/2026

Try it!

A little goes a long way, which is great since the bottle is really not that big. Even my husband started using it, and he loves it too. Works great on both my fine and straight hair and his soft curly.

Originaly posted on  kerastase-usa.com

kimlv4

5

1.774494904E12 25/03/2026

Great product! Smells great!

Leaves my hair feeling great and smelling even better! LOVE IT!!

Originaly posted on  kerastase-usa.com

Nnnnou

5

1.774179912E12 22/03/2026

Amazing

My favorite product, it is great time protect Nd detangle

Originaly posted on  kerastase-usa.com

S Potter

5

1.774310408E12 23/03/2026

Great heat protectant serum for fine hair.

[This review was collected as part of a promotion.] Great pre hot iron serum. I buy this a lot. No other serum compares for my fine hair. Protects it well.

Originaly posted on  kerastase-usa.com

prettyme

5

1.774207813E12 22/03/2026

Great product

I love the texture, smell and results of this product, this is my 3rd time buying it. It leaves your hair shiny and soft.

Originaly posted on  kerastase-usa.com

Kat Maj

5

1.774027812E12 20/03/2026

Amazing product

Amazing product. Hair feels soft and smooth and it smells delicious also

Originaly posted on  kerastase-usa.com

CarrieR

5

1.773606609E12 15/03/2026

Nice dispenser

I like the convenient pump dispenser. It smells nice and makes my hair smooth.

Originaly posted on  kerastase-usa.com

Ashleymbc

5

1.773589513E12 15/03/2026

Highly recommend

I love it. I definitely noticed a big difference in my hair. A little goes a long way. It also smells great

Originaly posted on  kerastase-usa.com

Danielle130806

5

1.773629109E12 15/03/2026

I couldn't live without this!

[This review was collected as part of a promotion.] I love the duo product of a cream and a serum. This gives my hair just the right amount of moisture on either wet or dry hair. I have pretty fine hair and this isn't too heavy at all.

Originaly posted on  kerastase-usa.com

Jcat831

5

1.773589513E12 15/03/2026

It really works

There was a noticeable difference after my first use. I did pair it with the shampoo & mask from the same line. The smell is nice and my hair was noticeably healthier looker, softer, smoother and more manageable. I had previously bought this several years ago and liked the results. After trying it again, I'm kicking myself for not making it a regular staple in my hair care routine.

Originaly posted on  kerastase-usa.com

Liligs2

5

1.773252019E12 11/03/2026

Instantly makes my hair feel softer

[This review was collected as part of a promotion.] My hair looks more controlled, less frizzy, and much more hydrated after using it. A great product for anyone trying to repair and protect their hair.

Originaly posted on  kerastase-usa.com

KerryN_

4

1.773350111E12 12/03/2026

Great but

I’m not sure if I can tell a difference between it and my other brand leave in. But it’s definitely great!

Originaly posted on  kerastase-usa.com

Tisha26

5

1.773028809E12 09/03/2026

My staple

Do not hesitate buying. This is my number 1 leave in.

Originaly posted on  kerastase-usa.com

DomciaS

5

1.772841604E12 06/03/2026

Amazing product

Such a great serum. My hair finally started growing and looking healthy. Before using this my hair was damaged and had the same length for over 2 years. After using the first bottle I could see a difference in hair length. For the first time in a very long time I was able to see my hair grow and glow.

Originaly posted on  kerastase-usa.com

Meghan634

5

1.772730913E12 05/03/2026

This is the product that started my journey!

This was the first product. I tried from Kérastase. I’ve been using the brand for four years now and my hair has completely transformed. This product remains in my top three favorite product and I absolutely love the way it makes my hair feel and look and smell. Every time I put it in my hair people ask me what I’m wearing. Lol I’m a hairdresser and I recommend this product to all of my clients and my daughters all use it as well. It makes my hair so shiny and so silky.

Originaly posted on  kerastase-usa.com

Anelisse

5

1.772745312E12 05/03/2026

Helps Hair Look Healthier

This product makes my hair look instantly healthier and shinier.

Originaly posted on  kerastase-usa.com

Bamebame

5

1.772461819E12 02/03/2026

Wow

Really helped my hair. Definitely recommend this product!!

Originaly posted on  kerastase-usa.com

TiffanyS

5

1.772307014E12 28/02/2026

Great Serum

Leaves my hair feeling soft and managable. Very easy to comb through after it dries with no tangles.

Originaly posted on  kerastase-usa.com

Always use

5

1.772215219E12 27/02/2026

Amazing

Best product ever used . Absolutely love and never use anything else

Originaly posted on  kerastase-usa.com

Britknee

5

1.772199919E12 27/02/2026

Best decision in hair care

[This review was collected as part of a promotion.] I have extremely thin almost baby like hair. I have tried many products in the past and my hair still seemed to break off once it hit my shoulders. This product helps prevent that from happening and makes my hair look like I’ve gotten it done at the salon!

Originaly posted on  kerastase-usa.com

BWildMama

5

1.772053209E12 25/02/2026

Soft and Shiny Damage Repair!

This product is a must in my haircare routine. Everytime I use this it makes my hair feel deliciously soft and resilent! It smells so wonderful and I love when I catch a hint of it's fragrance.

Originaly posted on  kerastase-usa.com

Abia25

5

1.772042412E12 25/02/2026

The best one

[This review was collected as part of a promotion.] Necessary at capilar routine, this product smell amazing!!!

Originaly posted on  kerastase-usa.com

Tampa Liss

5

1.771915513E12 24/02/2026

Great Step to your routine

I would say to use this with other serums or leave ins, but it is a game changer.

Originaly posted on  kerastase-usa.com

Farmerlime

5

1.771858814E12 23/02/2026

Smells amazing!

[This review was collected as part of a promotion.] I love this serum. It smells so good and instantly makes a difference to the softness of my color treated hair. I have hair down to my elbows and this serum helps me keep my length.

Originaly posted on  kerastase-usa.com

Caymi1

5

1.771822807E12 23/02/2026

Best for hair frizz

[This review was collected as part of a promotion.] Love love love this product . Tames frizzy hair. I also use as a heat protectant before blow drying.

Originaly posted on  kerastase-usa.com

Jlynnlo

5

1.771857917E12 23/02/2026

Great product

Works just like it says was happy with the results

Originaly posted on  kerastase-usa.com

white bottle

5

1.771794008E12 22/02/2026

love love love this serum

Repairing hair serum for weak, over-processed and damaged hair. i like this product because it is like a 2 in one. Every time I use it my hair is so shiny and smells so good!

Originaly posted on  kerastase-usa.com

Lily Hunt

5

1.771695012E12 21/02/2026

Great product

With colored hair I cannot live without this serum - it keeps my hair from getting damaged.

Originaly posted on  kerastase-usa.com

Jatmagg

5

1.771614011E12 20/02/2026

Shiny and Healthy

[This review was collected as part of a promotion.] Losing my hair with age. Needed to make it longer and stronger. This gives shine and strength and I feel more healthy and protected.

Originaly posted on  kerastase-usa.com

angggg

4

1.771578911E12 20/02/2026

Worth it

The Résistance Thérapiste Hair Serum by Kérastase is a lightweight, non-greasy serum that smooths frizz and adds noticeable shine. With consistent use, it helps make hair feel softer, healthier, and more manageable, especially for dry or damaged ends. Although slightly pricey, it delivers salon-quality results that make it worth considering.

Originaly posted on  kerastase-usa.com

Dana RN

5

1.775136615E12 02/04/2026

Only need 1 tiny pump

such a tiny amount does absolute WONDERS for my bleach blonde hair. I have medium length hair and 1 tiny pump does the trick! This is amazing

Originaly posted on  kerastase-usa.com

wendythewen

5

1.771468208E12 18/02/2026

Smooth & Sleek

[This review was collected as part of a promotion.] Wonderful to use prior to ironing or for quick touch up's. Makes hair smooth and sleek, helps define the style. A little goes a long way

Originaly posted on  kerastase-usa.com

Bunny81

5

1.771430418E12 18/02/2026

tames my curls

[This review was collected as part of a promotion.] Love it! use it daily, gives nice control without feeling heavy

Originaly posted on  kerastase-usa.com

Selmaria

5

1.771296309E12 16/02/2026

Amazing

[This review was collected as part of a promotion.] This leave in product is a must have for a dry course hair. My hair loves it.

Originaly posted on  kerastase-usa.com

Ang94cav

5

1.77118201E12 15/02/2026

Fabulous!

Helps with my dry ends & to smooth out any frizziness once I’m done blow drying. The serum is one of my favorites! I use this daily before & after I blow dry.

Originaly posted on  kerastase-usa.com

Tamtam1231

5

1.770993918E12 13/02/2026

So helpful

[This review was collected as part of a promotion.] This product has been a game-changer for my brittle hair ends.

Originaly posted on  kerastase-usa.com

Yamyla

5

1.774153752E12 22/03/2026

promise fulfilled

I'm still delighted with this product and I've only been using it for a few weeks. I can confirm its ability to repair extremely damaged and over-processed hair without leaving a heavy or greasy feeling, and I love the fragrance.

Originaly posted on  kerastase-usa.com

Northville Donna

4

1.770741017E12 10/02/2026

Revived my hair very well but has a strong smell

I love how this hair serum works but it seems to have a heavy perfume smell that I don't care for.

Originaly posted on  kerastase-usa.com

Legna4

5

1.770583509E12 08/02/2026

Great product!

Hay hair looks amazing after I use this product and style my hair

Originaly posted on  kerastase-usa.com

alipp4

5

1.770087608E12 02/02/2026

Second time buying. Transforming my hair!

[This review was collected as part of a promotion.] I absolutely love this serum. honestly I use it a few times a week and my hair feels better, it has been growing a lot more since its helping repair breakage! must buy!

Originaly posted on  kerastase-usa.com

Isabella19

5

1.770003909E12 01/02/2026

Excellent product

I really love how my hair smell after using I prefer use on dry hair it’s best for my hair type my hair is more soft and shine with this product

Originaly posted on  kerastase-usa.com

Jill326

5

1.769645707E12 28/01/2026

Magic in a bottle

This product is so special! My stylist, Cheryl, at Salon Sanity in Gretna LA showed me this product and how it’s separated like a lotion and oil! It makes your hair feel amazing and shiny and protects it from styling products!! This is a must buy. I have thin frizzy hair that’s also dry and in one use it transformed my hair. It’s been 5 days now and my hair still looks great!

Originaly posted on  kerastase-usa.com

Kiesha

5

1.769535014E12 27/01/2026

Love this!

This serum added instant hydration to my hair. I could tell a huge difference when I ran out. I will purchase this again.

Originaly posted on  kerastase-usa.com

bullygirl

4

1.769384706E12 25/01/2026

Would buy again

The product seems more nourishing than a spray will continue to use it.

Originaly posted on  kerastase-usa.com

Aylen97

4

1.769307307E12 24/01/2026

Ok

[This review was collected as part of a promotion.] I have only use this a few times, I like this for styling my hair

Originaly posted on  kerastase-usa.com

snowbird64

5

1.769267713E12 24/01/2026

80's girl

[This review was collected as part of a promotion.] Best mouse for your hair hands down. I wish I had this in the 80's

Originaly posted on  kerastase-usa.com

MEABFL

5

1.76897251E12 21/01/2026

Excellent Product

The oil combined with the cream creates the perfect blend for taming wild hair while adding extra shine and a healthy-looking finish and the smell is great!

Originaly posted on  kerastase-usa.com

NORA 1234

5

1.76903551E12 21/01/2026

Rejuvenation

Everytime I use this my hair thanks me. It looks better, feels better, and behaves

Originaly posted on  kerastase-usa.com

Gail Lynn

5

1.76892212E12 20/01/2026

BestHair Serum Ever!

[This review was collected as part of a promotion.] This serum works like magic on my flyaways & split ends. It also smells fantastic! I have tried so many hair serums that left me hair greasy, but not Kerastase - Resistance Therapiste - it is completely worth the price!

Originaly posted on  kerastase-usa.com

CrazyTracy

5

1.768865406E12 19/01/2026

2 pumps is all I need

2 pumps for my fine thin hair and the brush slides right through with ease. Only think I wish, the white side lasts as long as the clear side. Iykyk

Originaly posted on  kerastase-usa.com

Daiys c

5

1.768839312E12 19/01/2026

If your hair don’t grow but this

I highlight my hair and damage my hair really bad, this was one of the products help me to get my healthy hair back

Originaly posted on  kerastase-usa.com

Nurita

5

1.768532408E12 15/01/2026

I love this serum

It leaves my hair feeling incredibly soft, smooth, and shiny without making it greasy or heavy. My frizz is noticeably reduced, and my hair looks healthier overall. A little goes a long way—definitely a must-have in my routine.

Originaly posted on  kerastase-usa.com

Catnip

5

1.768498215E12 15/01/2026

Love it!

This serum is amazing for dry and damaged ends! I use everyday after the shower and my ends look amazing.

Originaly posted on  kerastase-usa.com

Jodi E

5

1.768498215E12 15/01/2026

Protects my fine hair, and helps with dryness.

[This review was collected as part of a promotion.] Protects my fine hair and helps with dryness. Light texture.

Originaly posted on  kerastase-usa.com

lnicole

5

1.768437909E12 14/01/2026

Fantastic treatment

I love this dual serum and so does my stylist. I take it with me when I get my hair done and I use it on my own. The scent is amazing and my hair has grown a lot (almost too fast!) I do wish that it came in a larger size. I always make sure to purchase two at a time -- please don't ever discontinue. This is so good for my hair.

Originaly posted on  kerastase-usa.com

IreneFT

5

1.768244618E12 12/01/2026

An absolute gift

This serum is amazing! I can see the shine back in my hair and it feels healthier and restored. Truly a hair lifesaver!

Originaly posted on  kerastase-usa.com

Sara Simms

5

1.767743106E12 06/01/2026

Great serum!

[This review was collected as part of a promotion.] I love the Résistance Thérapiste Hair Serum, it's great for my long hair. I'm using it between trims to help with split ends. It's giving my hair a luxurious feel!

Originaly posted on  kerastase-usa.com

Jenbama

5

1.76806162E12 10/01/2026

Saved my hair

Best product by Kérastase. This is the one K product that is always in my cabinet. I use it on wet and dry hair (hair is thick, frizzy and dry) and it transforms my damaged dry hair into soft, wavy, frizz free waves. Love this stuff. One wish - would love for it to be offered in a bigger bottle as I have a lot of hair. (very long hair).

Originaly posted on  kerastase-usa.com

Annie68

5

1.767378614E12 02/01/2026

Great hydration

I’ve used this product for almost three years. Great hydration.

Originaly posted on  kerastase-usa.com

CherylP

5

1.766947512E12 28/12/2025

Amazing stuff!

[This review was collected as part of a promotion.] My stylist recommended this and said it would be my holy grail. She was right! It’s so simple and you use such a small to make such a big difference. Just a small amount on my dry (maybe a little overly processed) ends and my hair is smooth and shiny and healthy looking. Love it.

Originaly posted on  kerastase-usa.com

cdavenp1641

5

1.766871011E12 27/12/2025

My favorite!

This is by far my favorite product to use on wash days. Hair feels smoother after using. Miss it when I travel without it!

Originaly posted on  kerastase-usa.com

BriFergie

5

1.766786413E12 26/12/2025

Love this for blonde hair

[This review was collected as part of a promotion.] I was expecting to like this as much as I do. I’ve repurchase several times.

Originaly posted on  kerastase-usa.com

Anonymous

5

1.76658571E12 24/12/2025

GREAT SERUM!

[This review was collected as part of a promotion.] leaves my hair soft, I use the entire regimen for better results

Originaly posted on  kerastase-usa.com

Split Ends

5

1.76652361E12 23/12/2025

Smells great

Smells great and works really well!! Highly recommend

Originaly posted on  kerastase-usa.com

Suzy2627

5

1.766436311E12 22/12/2025

Amazing product

For me with curly hair it’s been always hard to find the right serum but this serum helped define my curls beautifully and at the same reduce frizz. My curls feel soft, bouncy, and not greasy. I will be ordering another bottle today.

Originaly posted on  kerastase-usa.com

    Serum Thérapiste Hair Serum 30ml

    Kerastase - Résistance

    Product code : 3474630713383

    Sérum Thérapiste is a hair serum for very damaged and over processed hair.
    It repairs the hair fiber instantly, reinforcing it and protecting it against blow dry damages and split ends.

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