Kérastase

Resistance Sérum Extentioniste Scalp & Hair Serum

A strengthening scalp serum that creates visibly stronger hair from the root.
Resistance Sérum Extentioniste Scalp & Hair Serum is rated 4.6 out of 5 by 92.
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Don't just wait for split ends to show up and then take action. When you use Sérum Extentioniste Sca ... Read full description

Resistance Serum Extentioniste Scalp & Hair Serum
Kérastase

Resistance Sérum Extentioniste Scalp & Hair Serum

A strengthening scalp serum that creates visibly stronger hair from the root.

In Stock
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or 4 installments of $13.00 by Afterpay Learn more
Don't just wait for split ends to show up and then take action. When you use Sérum Extentioniste Scalp & Hair Serum, you'll be able to reduce the appearance of split ends as they grow, since this leave-in treatment helps hair at the root. Apply this to damaged hair to ensure the new strands that grow are as strong as possible.

How to Use
Use once or twice a week. Can be used on dry hair or after the shampoo and conditioner (sold separately) on damp hair. Apply 2 or 3 drops along all the scalp. Using the finger tips, work the serum into the scalp using circular motions. Do not rinse.

  • Ingredients List
    CREATINE R COMPLEX

  • , CERAMIDES

Rated 2 out of 5 by from Oily hair and unmanageable I tried it few times. With the combination of all extentioniste line, my hair is unmanageable, impossible to brush, and breaks even more when I try combing it. I wouldn’t recommend for people with fine hair. On a top of that hair gets oily after using the serum.
Date published: 2021-01-30
Rated 5 out of 5 by from Easy Feels great! Easy to use. I use it three times a week.
Date published: 2021-01-23
Rated 5 out of 5 by from Seeing Results in Length and Health I have used this product since Sep 2020 (2 vials so far), and am about to purchase my third in Jan 2020. I have thick, naturally curly hair which is cut in layers/highlighted every 8 weeks, and I typically blow dry straight with a round brush. I have seen improvement in overall health and shine, and recently, have seen exceptional increase in growth. I wash my hair with the extentioniste shampoo, towel dry, apply the extentioniste masque, and most recently steam my hair while using my facial steamer (10-15 min), massaging the hair and scalp. I then rinse, towel dry, apply the extentioniste serum, massage in, and then apply the extentioniste thermique (I may or may not blow dry at this point). This seems extensive, but I have noticed by doing this routine, I now only have to wash my hair (and do the process) on Sundays and Wednesdays, without any need for dry shampoo. 2020 was enough to make me realize this investment in myself is truly worth it—and is actually cheaper than the years of neglect and throwing fixes at my neglected hair (expecting miracles of my stylist every 8 weeks). I look great year round, and am protecting the investment I make every time I go to my stylist. This is the longest review I have ever written.
Date published: 2021-01-05
Rated 5 out of 5 by from Great product! I absolutely love this serum! The smell is truly amazing! My hair feels silky and smooth :)
Date published: 2020-12-27
Rated 5 out of 5 by from Great product Love this product and the entire extentioniste line. My hair is def growing longer and looks healthier
Date published: 2020-12-11
Rated 4 out of 5 by from Really works! I can already see a difference in my hair texture after a few weeks of use. They are thicker, shinier and don’t fall as much when I brush them. The only little thing I would improve is the packaging: the serum tends to drop before I can reach my scalp so it’s messy. Other than that, great product!
Date published: 2020-10-30
Rated 5 out of 5 by from Serum extentioniste This serum really works! It helps strengthen hair while promoting healthy hair growth.
Date published: 2020-10-28
Rated 4 out of 5 by from Feels like a treat, but not sure it's worth the $ I like the consistency and smell and the way texture it leaves my hair. Not sure if it makes my hair grow any faster. It is pricey.
Date published: 2020-10-14
Rated 5 out of 5 by from Amazing! Thicker and shinier hair This serum is amazing! I noticed results in 2 weeks
Date published: 2020-10-02
Rated 1 out of 5 by from Sérum Extentioniste Scalp & Hair Serum I have been using for 23 days and I see any difference until the moment
Date published: 2020-09-23
Rated 5 out of 5 by from I started using this to help with my awful diffused thinning hair. I’ve tried just about everything but this is the first scalp serum to actually do anything. it seems. I have BABY HAIRS and could not be more ecstatic!! I can’t believe it! I’ll be using this one for a while too because a little bit goes a long way. Doesn’t leave my hair feeling greasy or weighed down and I can use it every day. A total win!
Date published: 2020-09-20
Rated 5 out of 5 by from So far great product I just received this product, my hair does look and feel better. I’m noticing less hair loss after blow drying.
Date published: 2020-09-19
Rated 5 out of 5 by from Excited to try it! I love this serum so far, it certainly made my scalp feel more calm and relaxed. I can't wait to see the results months from now!
Date published: 2020-09-10
Rated 5 out of 5 by from Just can't say enough good this about Kerastase Love it makes my hair very healthy, shiny and seems like it grows faster.
Date published: 2020-09-09
Rated 5 out of 5 by from Hope it works The serum is great I use it when I wash my hair I have curly dry hair that I just had a full head of color and highlights and I blow dry my hair too so I wash twice a week and put the serum on saturday on my scalp. I need to use it long and hope it works love the smell and how it makes my hair feel so soft And the sample masque extentioniste will purchase it love it
Date published: 2020-08-29
Rated 5 out of 5 by from It works! It works! I've been using for a few months now and definitely have seen a difference
Date published: 2020-08-28
Rated 5 out of 5 by from Lovely serum Another hit from Kerastase. Easy to apply. I alternate using this and Initialiste.
Date published: 2020-08-19
Rated 1 out of 5 by from I returned this I was told when buying this it would promote hair growth it doesn’t
Date published: 2020-08-18
Rated 5 out of 5 by from This stuff works Precovid my hair was weak and I would shed a lot. Once I added this serum and the Genesis line shampoo and conditioner, I started seeing baby hairs grow back. My hair feels a bit thicker and hoping the long term will make my hair full again!
Date published: 2020-07-26
Rated 5 out of 5 by from Amazing product I really like This! Feels so soft on the scalp. Also I love the smell!
Date published: 2020-07-21
Rated 5 out of 5 by from Great serum I purchased the serum because I had a problem with losing large amounts of hair on a daily basis. My hair was beginning to thin quite a bit in certain spots and less in others. The serum has already after just 3 weeks of use began to show signs of improvement in my hair.
Date published: 2020-07-14
Rated 5 out of 5 by from JConner The serum worked amazingly my local Salon introduced me to this Serum and I'm so glad they did..
Date published: 2020-07-13
Rated 5 out of 5 by from Wonderful product It is a wonderful product. It stopped my hair from falling out. I have not tried anything better.
Date published: 2020-07-09
Rated 5 out of 5 by from Hair serum It actually works Saw significant new hair growth in one month
Date published: 2020-07-07
Rated 5 out of 5 by from I love this. I just started using it, so haven’t noticed a huge difference yet but some. I suffer from breakage in my hair and have very fine hair. I apply it every other night to my roots and then brush it through the rest of my hair. It doesn’t feel heavy or greasy on my thin hair. It makes it softer and smells nice. The only thing I don’t love is the packaging, its a glass bottle, a really pretty one but I am very clumsy so I get nervous about it. I also use the shampoo and conditioner from this line and they smell amazning
Date published: 2020-06-25
Rated 5 out of 5 by from Sérum This product makes my hair silky smooth. Without weight. Love it!
Date published: 2020-06-22
Rated 5 out of 5 by from This is an impartial review because I love Kerastase. I need a bit more time to see how this serum turns, but I haven't had any issues so far. I use the entire line and my hair smells divine.
Date published: 2020-06-22
Rated 5 out of 5 by from Amazing stuff This is pretty amazing. After the first use, I was hooked.
Date published: 2020-06-20
Rated 5 out of 5 by from Great product Smells great. My hair and scalp have felt very soft since using. Great product.
Date published: 2020-06-12
Rated 5 out of 5 by from Loce this brand and products Love this product made my hair so healthy and shiny
Date published: 2020-06-10
  • y_2021, m_3, d_3, h_17
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.14
  • cp_2, bvpage2n
  • co_hasreviews, tv_0, tr_92
  • loc_en_US, sid_HDC10292, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_haircom
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getReviews, 44ms
  • reviews, product
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