Kérastase

Bain Extentioniste Shampoo

A length-strengthening shampoo for weakened and damaged hair.
Bain Extentioniste Shampoo is rated 4.3 out of 5 by 93.
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It can totally be frustrating to say goodbye to old, damaged strands if the growing-out process is t ... Read more

Bain Extentioniste Shampoo
Kérastase

Bain Extentioniste Shampoo

A length-strengthening shampoo for weakened and damaged hair.

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It can totally be frustrating to say goodbye to old, damaged strands if the growing-out process is taking longer than expected. But you don't have to be frustrated waiting on healthier, new hair to grow in if you use Bain Extentioniste Shampoo. This strengthening shampoo works to transform the strands you already have by recovering the hair fiber's perfect condition, sealing the cuticle from root to ends, and ensuring a healthy scalp.

How to Use
Wet hair thoroughly. Apply and massage through the scalp and hair in circular movements. Emulsify and rinse thoroughly. Repeat this application and leave in for a few minutes. Lather by adding a little water and gently emulsify before rinsing thoroughly.

Star Ingredients
Creatine R Complex, Taurine

 

Ingredients List
WATER, SODIUM LAURETH SULFATE, COCO-BETAINE, TAURINE, COCAMIDE MIPA, SODIUM CHLORIDE, AMODIMETHICONE, LAURETH-5 CARBOXYLIC ACID, PPG-5-CETETH-20, SODIUM BENZOATE, SODIUM HYDROXIDE, CITRIC ACID, POLYQUATERNIUM-10, PEG-55 PROPYLENE GLYCOL OLEATE, PROPYLENE GLYCOL, PEG-60 HYDROGENATED CASTOR OIL, SALICYLIC ACID, AMYL CINNAMAL, HEXYL CINNAMAL, BENZYL ALCOHOL, LINALOOL HYDROXYCITRONELLAL, CITRONELLOL, LIMONENE, CREATINE, 2-OLEAMIDO-1,3-OCTADECANEDIOL, BENZYL CINNAMATE, SODIUM ACETATE, ISOPROPYL ALCOHOL, FRAGRANCE.

Rated 3 out of 5 by from So-So I have been using Kerastase products for 12 years. I have tried many of their products and while I have my favorites I'm usually not overall disappointed, but that is not the case with this shampoo. It does have a good lather and gives the hair a very clean feeling, but I have fine, slow growing, color treated hair (which is why I bought this product) and it seems to be drying my hair and scalp out more than helping my hair grow unfortunately. Spending so much on a product that doesn't live up to it's name is frustrating and disappointing.
Date published: 2018-07-09
Rated 5 out of 5 by from Fantastic Results! I’ve using Bain Extentioniste Shampoo since it was launched and made available for purchase. This product is amazing! I have fine and thinning hair due to Lupus. I am amazed that I have regrowth and my hair doesn’t look “frizzed” anymore. The density of my hair appears fuller and healthier. Also, I have incorporated the Fondant Extentioniste and Masque into my hair routine. Finally, I wash my hair and use heat tools everyday with these fabulous results. I’m so happy! Thank you for saving my hair!
Date published: 2018-08-12
Rated 4 out of 5 by from Good shampoo I was excited to try the Kerastase Resistance Bain Extentioniste Shampoo due to it being a length strengthening shampoo for damaged hair. I get my hair colored and I feel like my hair looses some of its softness and strength after getting it colored. I’m not sure about the lengthening part of the shampoo but I definitely felt my hair get stronger and softer than before which makes me happy. I really liked how well it lathered and you didn’t have to use much. I have normal-thick long hair so I was happy that I didn’t have to use much to cover my hair. Overall I was happy with the shampoo and would try it again. [This review was collected as part of a promotion.]
Date published: 2018-07-28
Rated 4 out of 5 by from An all around good shampoo I honestly didnt know what was going to happen when I tried Kerastase Resistance Bain Extentioniste Shampoo. I have very thick and curly hair and I need a great moisturizing shampoo to get the job done right. When I used this product, it has a nice clean smell that I really enjoyed. It cleaned my hair overall, but I think this product would only completely work for me if my hair isn't built up with hair products. I would still use it again, but only when I dont have a lot of products in my hair that need to be removed. Love the scent! [This review was collected as part of a promotion.]
Date published: 2018-07-31
Rated 1 out of 5 by from Not good for highlighted hair! I have only used this two times so far, but I have highlighted hair and the diagnosis quiz said this is the best for my hair. I have such a hard time getting through my hair with this shampoo. It just doesn't work for hair that has been highlighted and you have to use a lot since it is such a thin shampoo. I unfortunately bought the large size bottle and I am regretting my expensive decision. Also - Kerastase usually has such an awesome smell - this one does not. It doesn't have a smell at all.
Date published: 2018-08-27
Rated 5 out of 5 by from Great product line Been using for several weeks, I wash/treat hair once a week. Due to having done very light blond balayage, foils and touch ups for two years, my hair is now very damaged (dry/thinning/brittle/broken). I purchased Resistance Bain Extentioniste, Resistance Mask Extentioniste and Resistance Ciment Thermique. These specific products made a huge difference overall on my hair and scalp on the first try, LOVE IT!
Date published: 2018-12-26
Rated 5 out of 5 by from Fixed my color damaged hair in Colorado climate I was recommended this shampoo from my stylist who wanted to first repair the strength of my hair before fixing any color correction. I live where the humidity is around 20% everyday so it's extra harsh on my hair. On top of the dry air, my hair was messed up twice by people who did a bad job with balayage. I seeked help from another stylist who then told me to use this shampoo. I paired it up with my favorite hair masque conditioner by J Beverly Hill. Both work really well together and my hair feels stronger, feels softer and looks a lot better.
Date published: 2018-12-05
Rated 3 out of 5 by from Works but... it makes my hair SHED a lot Bain Extentioniste did help my hair grow longer and faster. I received a bad cut and my hair was very short. I saw results with Extentioniste products after a couple washes. Unfortunately, it makes my hair shed a lot. More than I've ever shed in my life. It might be because this shampoo tangles my hair so much and makes it very difficult to comb. I have fine hair, and I do not get knots that often. But when I use this shampoo, my hair becomes a bird's nest. I enjoyed the lengthening benefits of the shampoo so much, I tried a workaround. I would condition my hair before shampooing with a Nutritive conditioner. Then use Extentioniste shampoo and conditioner to finish. But it became too much work. The lengthening benefits no longer out weighed the amount of hair I lost.
Date published: 2018-08-12
Rated 5 out of 5 by from Amazing! I tried a sample of this shampoo, that was sent to me with my other Kerastase purchase, and after that I had to get the full size of this shampoo and conditioner! I am growing out my hair long after bleaching it, now I am back to my natural color and only do a little bit of colour (dark highlights) at a hair salon, where I can do Kerastase treatment. This shampoo is amazing at keeping my length healthy. Great addition to my hair routine!
Date published: 2019-11-15
Rated 5 out of 5 by from Salon worthy shampoo The Kerastase shampoo is my new fave hair product! It smells great, and leaves hair feeling smooth and soft. I was immediately drawn to the product by its beautiful packaging and color scheme. Then opening the product, the aroma that filled my shower was delicious! If they could make it into a perfume, I would wear it! I don’t know how I will ever use another shampoo again. I won’t ever use another shampoo again. Kerastase’s resistance Bain extentioniste shampoo is just too good. [This review was collected as part of a promotion.]
Date published: 2018-07-30
Rated 4 out of 5 by from Love Kerastase products, prefer Bain Therapiste I have only been using Kerastase products exclusively for 2 weeks, but have since built a small collection since my first purchase. My hair is long, thick, medium-texured, wavy-curly, color-treated and Balayage-highlighted. Most of my hair is fairly healthy, but the highlighted areas tend to be dry with some split-ends. My very first purchase with Kerastase ruined me (in a good way). Before purchasing the Bain Exentioniste shampoo, I had purchased the Bain Therapiste shampoo along with the Fondant Extenioniste conditioner (these were recommended by the diagnostic tool). I fell in love with the Bain Therapiste shampoo and Fondant Extentioniste conditioner combination because it left me with a Brazilian blow-out silky, glossy result -- it felt like I had left the salon!! Then, after doing some research, I thought that maybe I should pair the Bain Extentioniste Shampoo with the Fondant conditioner or extentioniste hair mask (which I later purchased). I took the online diagnostic tool test again providing the same information, but including the desire for longer hair -- it recommended the Bain Extentioniste shampoo, Fondant Exentionise conditioner, etc. Well, my experience with the Bain Extenioniste shampoo was just okay, I probably wouldn't buy it again. Process: Upon opening, I noticed that the product was clear (not creamy like the Bain Therapiste). The smell was pleasant, but not as great as the other products. I used a quarter sized amount to my scalp, then another quarter sized amount through my lengths (second wash) and lathered them both in. I noticed that this product builds up a big lather (very sudsy), unlike the creamy Therapiste. After shampooing I combed my hair before conditioning and noticed my hair didn't tangle (very good!). Then, I conditioned with the Extentioniste mask (not to be confused with the Fondant conditioner) and then after towel-drying, I applied a hazelnut sized amount of the ciment thermique (which I love). When blow-drying, I noticed my hair was very dry and frizzy. First, I blamed the mask, but then questioned the shampoo. I had plenty of Kerastase styling products to soften my hair, but it wasn't the same as the glossy, smooth locks that the Bain Therapiste shampoo left me with. So, then, a day later I experimented with a different combo: Bain Extentioniste shampoo with the Fondant Extentioniste conditioner + ciment thermique -- this combo gave me a better result, but my hair was still slightly dry, but definitely much smoother. Then, I tried another combo (the Therapiste shampoo with the exentioniste mask -- final result gave me glossy locks). I concluded that maybe my balayage highlights don't respond well to the shampoo, or the shampoo is high in sulfates which left me with a dry hair result reminiscent of the cheaper shampoos you can buy anywhere. This afternoon, I went back to my original Therapiste shampoo and Fondant conditioner combo that I loved so much, and surprise, surprise...I have another glossy-locks, magazine-ready Brazilian blow-out salon experience in my bathroom! Conclusion: I think I am going to stick with the Bain Therapiste shampoo. While the Bain Extentioniste might work better for other hair types, I don't think it serves those with highlighted hair well. I would recommend this to friends who don't have highlighted hair or overly processed hair, or this shampoo might work those with more oily hair types. While I have given stellar 5 star reviews on practically every Kerastase product, this one only gets 4 stars. It's still a good shampoo, but it just didn't "wow" me. Going to return this back and hope they can exchange with a bottle of my favorite Bain Therapiste shampoo.
Date published: 2018-09-01
Rated 5 out of 5 by from So, So Clean I think I have found my new holy grail shampoo. This stuff is amazing. I have exceptionally thick and oily hair and I always feel like I need to build up a thick lather for it to be clean. My hair is so damaged from years of coloring, styling, etc and I don’t think it has ever felt this soft. This shampoo has a really light scent and a lightweight texture that didn’t feel like it was weighing down my locks. It rinsed out really easy as well. I air dry my hair and when I woke up this morning, my hair was soft and smooth. I couldn’t ask for anything more. [This review was collected as part of a promotion.]
Date published: 2018-07-18
Rated 2 out of 5 by from Not my favorite.... I love Kerastase products and have been using them exclusively for 11 years. This is not my favorite. I actually think my hair is dryer than before. I am going back to the Magistrate.
Date published: 2018-10-16
Rated 1 out of 5 by from Bought the whole set, no noticeable difference! Several months ago, in high hopes of growing stronger and therefore longer hair, I bought (at great cost) Bain Extentioniste Shampoo, Conditioner and Serum. I should know better, this is in no way a magic potion to stengthen and grow hair! These products certainly made NO difference. None. Not a bit.
Date published: 2018-12-26
Rated 4 out of 5 by from Smells amazing I was a bit skeptical to try a new product - but I had to have my hair dyed twice within a span of two weeks (blonde balayage and then a color correction) As you can imagine my hair was feeling a bit tired and dry. I used this shampoo and not only did it smell great, but it brought life back to my hair. I used it with the mask and the leave in treatment that are also part of the collection. Would recommend .
Date published: 2019-08-10
Rated 5 out of 5 by from Healthy Hair A definite staple in my home. If you want luxurious, healthy and shiny hair without having to go to the salon and spend hundreds then you need to buy this product! you will not be let down! [This review was collected as part of a promotion.]
Date published: 2018-08-01
Rated 4 out of 5 by from Kerastase Resistance Shampoo For those seeking healthy length, this shampoo helps fortify & strengthen hair against damage. It has a really nice lather (a little bit goes a long way) & it rinses out easily which left my hair feeling very clean. I wasn't a huge fan of the scent, but it didn't linger afterwards so that wasn't a deal breaker for me. Overall it seems like a very good product, but I would need to use it for an extended period of time in order to judge the long term results. [This review was collected as part of a promotion.]
Date published: 2018-07-18
Rated 5 out of 5 by from Makes my curls feel healthy. I have thick, "classic" curly hair so finding a good shampoo is a bit challenging because most shampoos either leave my hair feeling greasy or dried out. I gave Kerastase Resistance Shampoo a try and was definitely happy with the results. The shampoo is clear, with a light scent (not overpowering). It lathered well - usually clear shampoos don't lather enough and leave my hair feeling greasy). I haven't used it long enough to attest to decreased breakage but I did notice that there wasn't as much shedding in the shower as usual. [This review was collected as part of a promotion.]
Date published: 2018-07-18
Rated 3 out of 5 by from Nice shampoo This shampoo lathers well and smells nice. It did not leave my hair feeling dry or stripped. I would continue to use. [This review was collected as part of a promotion.]
Date published: 2018-07-25
Rated 4 out of 5 by from Great for summer hair I think I love the smell the most about this product- is that a bad thing? I have naturally curly hair & have to watch which type of products I use. My hair felt amazing while washing, but as it dried the ends were drier than normal. I'm not sure I could justify the price knowing that I wasn't in love with how it worked. [This review was collected as part of a promotion.]
Date published: 2018-08-02
Rated 4 out of 5 by from Great product! I bought this product about a month ago. So far so good. I use to color my hair but decided to stop about a year and a half ago to save money and give my hair a break. I have long, medium thickness, dark blonde hair that is prone to be very oily. I will say that with any other shampoos I had to shampoo every day. With this product, my hair still looks fresh almost 48 hours after a wash. I didn't use to believe reviews like that because of how oily my hair gets but I promise, I'm telling you the truth! my hair is a lot more manageable and soft. And it smells great! One downfall though....it doesn't sud very easily at all! You have to apply it while your hair is in the stream of water or use more than it says you'll need to. Which is a huge bummer because when you pay this much, you want it to last you as long as you can. Although like I said, my washes are less frequent now. Bummed by that aspect but all in all, a great product.
Date published: 2018-07-07
Rated 5 out of 5 by from Hello Hydration! And Farewell Flat! Okay, for someone that has been struggling with hair health for awhile (dying my hair from black to blonde multiple times), I have tried it all. Therefore, I didn't really believe a new shampoo would do that much for me. When I tried the Keratase shampoo at first I was like "Where're the bubbles"? I worked it through my hair and rinsed like normal, but it wasn't normal! My poor ultra-damaged hair didn't do that shriveled up thing it does after I shampoo. It felt stronger. After using the hair mask I let it air dry and added no product what so ever. And to my surprise, I had volume and shine! I was more than pleasantly surprised and can't wait really style it. [This review was collected as part of a promotion.]
Date published: 2018-07-18
Rated 4 out of 5 by from Kerastase Shampoo 1st and foremost I have dry curly hair that frizzes easily and is colored. Also it breaks pretty easy too, so I tend to co-wash it or wash it once every two weeks with a shampoo. Kerastase to me is known for their products on a higher end with salon quality. I was ecstatic to give this a whirl,especially since it's supposed to help with hair that seeks a healthier length (hello breakage). It's got taurine in it and supposed to help strengthen and fortify hair. PROS-Smells great and its not overbearing. Less is more with this product. Made my hair feel clean without feeling super coarse or like hay. CONS-It will be on the pricier side of shampoos but I feel like you don't need much so it would last a long time anyways. When I first poured into my hand I didn't think I had enough but omg, it spread so easily through my thick tangled locks and the little bit that I did use worked itself evenly and easily to my roots leaving my hair satisfyingly clean.The smell is hard to explain..pretty but not overbearing. My hair didn't feel like it was super dry/damaged and hay like it normally does with shampoos. My hair was manageable when after using it. I didn't really feel like much was missing from this product at this point. I would purchase again in the future, I was shocked with the results. I definetly think if you're struggling with growing your hair out, breakage, and dryness this is for you, and yes you don't even need that much. I used half of what I normally use with other products. I'm very happy with the results as my hair was super manageable before even using the conditioner. [This review was collected as part of a promotion.]
Date published: 2018-08-04
Rated 3 out of 5 by from It was Okay Honestly, I wasn’t impressed with Kerastase Resistance Bain Extentioniste Shampoo. While it did leave my hair with slightly more shine and little frizz that’s about all it did and it wasn’t lasting. It was more like only immediately out of the shower and at best a few hours. As far as the length strengthening, I really didn’t see a difference. I also wasn’t a fan of the smell, it was salon chemical smelling and it lingered all day but eventually fades. It just didn’t work for my hair. Over all I wouldn’t purchase it. [This review was collected as part of a promotion.]
Date published: 2018-07-23
Rated 5 out of 5 by from So nice! This is admittedly out of my budget but I splurged in this shampoo and the matching conditioner and it’s amazing! My hair is fine but color treated and damaged and it makes it so easy to brush post shower. I love the fresh clean scent. It smells mildly tropical. I would repurchase during a sale again. Thanks!
Date published: 2019-06-16
Rated 4 out of 5 by from It was a good shampoo I bought this the day it became available. I used the shampoo first, then the conditioner and mask. My hair felt fine after I rinsed, but the comb out process was a little more difficult. Usually I use the Curl Ideal Cleansing conditioner, so I think my hair is just used to a more gentle cleanser.
Date published: 2018-06-28
Rated 5 out of 5 by from Smells so good! After a week of using this shampoo, my hair is super soft. The shampoo smells so good, and has the most amazing lather. My hair smells so good for hours after using. I would Definetly purchase this shampoo. [This review was collected as part of a promotion.]
Date published: 2018-07-31
Rated 5 out of 5 by from Great Shampoo For Fine Hair! I have very long, fine, mechanically damaged hair. I enjoyed using this shampoo a lot! First thing I noticed was that it smelled lovely. I enjoyed that the scent wasn’t overpowering. I also loved that I had enough in the sample to properly wash my long hair. It gave a nice clean sudsy feeling while washing. I also felt like it cleaned my hair very well. It was easy to style afterwards and didn’t cause my hair to be frizzy despite high humidity levels! I feel like it maintained moisture very well until my next wash! It was a nice product all around. Enclosed is a photo I took after washing my hair and letting it hair dry with Kerastase! Needless to say, I had a good hair day! [This review was collected as part of a promotion.]
Date published: 2018-07-18
Rated 5 out of 5 by from Strong & Sassy This shampoo left my hair feeling like a million bucks. Most strengthening shampoos & conditioners make your hair feel really rough, but this one was a true winner. After lusciously shampooing and conditioning my hair, I blow dried and curled it! It looked AMAZING and strong! The smell of both products is quite lovely. I would definitely recommend using both products for the tried & true result! [This review was collected as part of a promotion.]
Date published: 2018-07-23
Rated 4 out of 5 by from Amazing shampoo! I’m someone who is picky about the shampoos and things I use on my hair. I have been using the same brand for years now. But, after trying this shampooo I believe I’m going to have to switch my hair routine. This shampoo didn’t make my hair feel like straw which is what I was afraid was going to happen. It made it feel silky and smooth. Plus pairing it with the matching hair mask was amazing! [This review was collected as part of a promotion.]
Date published: 2018-08-05
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