Sérum Thérapiste Hair Serum

Repairing hair serum for weak, over-processed and damaged hair.

Sérum Thérapiste Hair Serum is rated 3.9 out of 5 by 46.
  • y_2019, m_8, d_17, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_46
  • loc_en_US, sid_serum-therapiste-hair-serum, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_kerastase-usa
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 7ms
  • reviews, product
  • Size


    | 30 ml

You can cancel or edit your auto-replenishment orders at any time in My account.

Same Day Shipping When in Stock
How To Use
Apply 1-2 pumps of Serum Therapiste from mid-lengths to ends on towel-dried hair. Leave in and proceed to blowdry as usual. Can also be used as a finishing touch on dry hair to control flyaways and seal split ends.
Learn how to use the Sérum Thérapiste video tutorial
Resurrection hair serum fiber renewing hair care for all hair types. The oil and cream texture instantly repairs, reinforces and resurfaces hair fiber. The hair is deeply repaired as its core. The hair fiber regains its strength and elasticity. Hair is toned and revitalized. High heat protection, up to 450F. 76% split ends reduction.

A soothing, calming hair serum has a light texture like drops of water, yet it is highly concentrated with nutrients and active ingredients. Easily absorbed and infinitely beneficial, a serum is skin care for a sensitive, itchy scalp.

  • SP94, powerful, gluco-peptide that enhances hair fiber’s resilience, structure & strength to activate KAPs synthesis.  
  • 6 Amino Acids, each attaches itself to damaged areas of the hair to compensate for the loss of mass.
  • 1 Wheat Protein Derivative, strong affinity with the hair fiber, restores uniformity and smoothness.
  • Ressurection Sap: Sourced from the Myrothamnus Flabellifolia plant - known for its ability to come back to life after 10 years near death - helps preserve the structure of the fiber.
Hair Serum Ingredients
Cyclopentasiloxane • Aqua / Water • 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
Rated 2 out of 5 by from Great product but terrible dispenser I absolutely love this product, purchased it from one of the authorized retailers. However the reason I deducted so many stars is because the dispenser does not work and most times I get the oil part of the serum and none of the cream serum. That being said even with only one side working I mix it with the Nutritive blow dry primer and still get great heat protection, I would love for them to redesign the dispenser.
Date published: 2019-06-23
Rated 5 out of 5 by from Totally worth it! i use the complete extentioniste range. i purchased this serum because the extentioniste thermique is not available in South Africa yet. i am very satisfied. my hair no longer has static and its so soft with a great smell. i have thick and wavy hair. i only use 1 full pump. i also don't have any problems with the pump mechanism, it works just fine if you press the centre.
Date published: 2019-06-20
Rated 5 out of 5 by from Love it! My hair has never been so smooth. Still waiting to see if it helps with repairing damage, but so far so good. I love using it in combination with my dry shampoo to keep the ends from feeling like straw! Planning to order again
Date published: 2019-06-05
Rated 5 out of 5 by from Kerastase sérum -Thérapiste I’m using this product almost now for a month , and I really love it. I have dry curly hair that mix of curls and wave I applied the product when my hair dry and Sakura the next day with beautiful smooth hair . I’m addict to the smell it’s so amazing my sister told me it smells like jasmine and rose . It keep the hair smell nice and take away flyaways and make it smooth . Thank you Kerestase !
Date published: 2019-05-30
Rated 2 out of 5 by from I hate the smell! Faulty packaging. I have always used the Fibre Architect syrup like this. Now it’s been discontinued and they sujjest this as a replacement. The cream side never worked, I see many others have the same issue. The smell is completely overpowering to me, gave me a headache right away. The smell is men’s cologne/old lady perfume. I ended up not being able to finish the bottle! Kerastase is phenomenal as a whole, I honestly don’t know what to do without this or the Fibre Architect syrum, nothing and I mean nothing has ever come close to the same results and I was a hair stylist for 15 yrs. I use Oloplex when coloring my hair and for treatments, I’m sure it’s repairing bonds, but nothing compares to how these syrums make my hair look and feel. I purchased from Sephora but have purchased here many times in the past. I wanted to write a review here in hopes that Kerestas would see it.
Date published: 2019-05-09
Rated 4 out of 5 by from Smell is amazing This product wasn’t oily and didn’t weigh down my hair. It gave a nice shine to my hair and smoothed ends. Not sure it helped repair it but I love the smell of this serum. I would buy again.
Date published: 2019-03-09
Rated 5 out of 5 by from Holy Grail I have been using Kerastase products for years and I’ve always mixed & matched shampoos, conditioners, leave ins & serums from Kerastase lines & have been very satisfied compared to all other brands. Recently within the last 6 months I decided to try the resistance pre shampoo conditioner because I had a full bottle of the resistance shampoo, the resistance mask, & the resistance Heat protectant (which have helped tremendously with breakage) Then I came across a bottle of this serum in my cabinet that I forgot about, used it, and my hair has been transformed. I believe this product used in conjunction with the rest of the resistance line is what took my hair to over the top amazing, ultra soft & ultra manageable with min fly aways. Game changer & Holy Grail product. For reference I’m bleached platinum long blonde. Also I can’t wait to get my hands on the new line for blonds. Thank you Kerastase for your part in the fun I’m having taking care of my hair!!!
Date published: 2019-02-26
Rated 5 out of 5 by from The Absolute Best! Its like MAGIC I put this in my cart everytime I am shopping on Sephora. For reference, I am African American and this was awesome for my natural and chemical treated hair. Just get it. Seriously
Date published: 2019-02-08
  • y_2019, m_8, d_17, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_46
  • loc_en_US, sid_serum-therapiste-hair-serum, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_kerastase-usa
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getReviews, 10ms
  • reviews, product

Complete The Hair Care Routine