Double Sérum Thérapiste

Dual-serum for both fine and thick hair. Ends renewal care.

Double Sérum Thérapiste

Doubly effective, this product combines an oil-based care agent, which has the particular quality of being able to very delicately moisturize the fiber, with a denser, cream-textured top-coat to treat and seal ends. A subtle mix of compounds that are highly cutting-edge but contradictory in terms of formulation, this product offers unique results. Third performance factor: the fibers are thermo-protected when using heated styling tools at temperatures of up to 230°C / 446°F. A finish that is immediately noticeable by everyone, an extra dose of softness as a final touch.

Product Actions

Add to cart options


In Stock  Ships in 1-2 business days


Double Sérum Thérapiste - Résistance - Kérastase

You May Also Like:

Double Sérum Thérapiste is rated 3.9 out of 5 by 38.
Rated 4 out of 5 by from Super serum So I have been using my sample for a bit and so far so good it helps with split ends but not sure but i use it with the cement therimique. I am considering purchasing this item for sure hoping to see more good results
Date published: 2017-07-13
Rated 3 out of 5 by from Not enough product in a bottle I love how this product can change my hair, more specifically the oily part of the serum. I also love the smell, as my hair smells wonderful for days when I use it. On the other hand, I just can't stand the design of the bottle because the real amount of product in it is really outrageous. I wish I could buy a big bottle of the oily serum. Unfortunately, I will have to find another product that can actually last.
Date published: 2017-05-15
Rated 5 out of 5 by from LOVE the scent~~~! Not only does this work magic at restoring my BLEACHED to death hair but the scent is AMAZING. LOVE.
Date published: 2017-04-07
Rated 1 out of 5 by from Smells awful I am an avid Kerastase fan. i generally like and love the scents, but this product smells horrible. The product would be ok without that, but it is such an overpowering scent that I can't ignore it or use the product anymore!
Date published: 2017-03-12
Rated 2 out of 5 by from Not my favorite Too much scent, packaging makes it difficult to see how much is left. I travel (a lot) so this is important to me. Ran out in middle of trip, don't want to have to carry two. Miss the simplicity of the pink Reflections Oil.
Date published: 2017-03-01
Rated 5 out of 5 by from Très bon produit J'utilise le serum après un shampoing thérapiste et sa prolonge la couleur et la texture de mes mèches. Je ne peux plus m'en passer.
Date published: 2017-02-23
Rated 4 out of 5 by from Bon mais trop cher J'ai les cheveux secs,abîmés par le bleach même avec l'assurance en décoloration, épais, drus, longs mais ce sérum fait des merveilles. Un peu trop cher le ml par contre.
Date published: 2017-02-16
Rated 2 out of 5 by from Not for baby fine hair If you have a "no scents" policy at your workplace, this isn't for you. The scent is very strong and lingers. Double Serum Therapiste weighs my hair down and leaves it feeling heavy; I prefer Elixir Ultime Creme Fine for my hair. It leaves my hair soft and eliminates frizz while not weighing it down. This serum would be alright just for the ends of my hair, but that means I need a second product for all over. The cost and heavy perfume prohibit using this as an "ends only" product. Finally, it's difficult to get a perfect mix of each of the oil and cream. Why complicate things? I want a no-fuss approach.
Date published: 2017-01-26
  • y_2018, m_2, d_19, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_38
  • loc_en_CA, sid_DOUBLE-SERUM-THERAPISTE, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_kerastase-en_ca


The double serum Thérapiste texture associates a repairing cream and a binding serum.
FOR WHO? For very damaged and over-processed hair (erosion level 3-4). Dedicated to thick hair.
• Protects against the heat (up to 230°C)
• The hair fiber is instanly repaired, reinforced and resurfaced.
• The hair is protected from heat and makes the blow-dry two times faster.
• Ends are sealed.


Apply to washed and towel-dried hair.
Massage onto lengths and ends.
Proceed to blow dry and leave in.
Can be used in construction on wet hair or as finishing touch on dry hair.


FIBRA-KAPTM: compensate for the missing KAPs and reactive their synthesis.
• SP 94, supplies the follicle with the energy necessary to activate KAPs synthesis
• 6 amino-acids characterized by their capacity to attach themselves to damaged areas of the hair
• 1 wheat protein redivative helps restore uniformity and smoothness.
Sève de résurrection: known for its regenerating power