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Kérastase Serum Thérapiste Dual Treatment 30ml

4.7 of 65 reviews

$54.00

$13.50 x 4

In Stock

$13.50 x 4

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Age:

  • 20s
  • 30s
  • 40s
  • 50+

Hair Concern:

  • Breakage and split ends
  • Fine or limp hair

Hair Curl Type:

  • Straight
  • Wavy

Hair Texture:

  • Fine
  • Medium

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Kérastase Serum Thérapiste Dual Treatment

Kérastase Serum Thérapiste Dual Treatment

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Customer Reviews

Review & Earn

4.7 of 65 reviews

97% recommend this product

  1. 49

  2. 15

  3. 1

  4. 1

  5. 0

Most Helpful Positive

So nourishing
A colleague recommended this to me, and not only does it smell so delicious... it's changed my ends to softer, bouncer and shiner. It hasn't really managed my fizz and baby hairs too much... but I am considering purchasing the other products in the range to help with that.

Most Helpful Criticism

great for thicker hair
I have very fine, bleached hair, and I found this a little heavy for me, but I think it would work well for someone with slightly thicker hair, great fragrance!
  1. So nourishing

    A colleague recommended this to me, and not only does it smell so delicious... it's changed my ends to softer, bouncer and shiner. It hasn't really managed my fizz and baby hairs too much... but I am considering purchasing the other products in the range to help with that.
  2. So glad I’ve found this

    I had never used a hair serum before only oils but I love this!
    Applying to damp hair before blow drying and then through the week on dry hair to help smooth after brushing I found it helped with my dry ends but also made my hair more manageable :)
  3. Best leave in treatment for damaged hair!

    I tried this based on all glowing reviews and everyone was right! Hands down the best leave in treatment for damaged, over process and bleached hair. My hair is constantly foiled blonde with no shine! I’ve been able to five shine back to my hair and the health of the hair has dramatically improved, to the point where I don’t need to use this as often! Don’t think twice, just buy!
  4. Feels amazing

    This smells amazing and was great for when I had blonde hair I would use it before straightening every day, it’s is a double pump and you only need a tiny bit
  5. Amazing!

    Always been a fan of kerastase and am a regular user of their masks, but was recently recommended this, and wow! Never received so many compliments on my hair, it looks so shiny and healthy, and full of bounce! Started to notice a difference after only a few uses and doesn’t weigh your hair down, My hair health has drastically improved over the years since switching to kerastase but this took it to the next level. New holy grail!
  6. Whole range is amazing

    If you have damaged hair this product is amazing. The serum helps smooth and a little goes a long way
  7. Amazing

    Love this serum, it instantly leaves my hair feeling softer and gives it a wonderful gleam. Easy to apply and doesn’t have that greasy feeling a lot of other similar products do. I wouldn’t buy anything else.
  8. Hair feel thicker and smells amazing!!

    My hair was highly damaged after going completely blonde last year due to over lapped colour which caused my hair to snap!!
    I have been using the Kérastase Résistance Range since November and have noticed a rapid growth in my hair especially the hair that had snapped and the conditions has definitely improved!!
    Where all the new growth is coming through my hair is feeling quite thick and hydrated again, absolutely love the Range!!
  9. Your hair will smell amazing

    I purchased this as it was highly recommended by my hairdresser, I am super blonde from doing scalp bleaches and that makes my hair feel super dry and straw like.
    Since I started using this, first of all the smell, (LOVE) the texture is super light weight and doesn’t make the hair greasy at all once it’s dry. But I definitely am noticing a difference in my hair health and heaps of shine to my hair so it’s not so lacklustre.
    Basically if your blonde, get this in your beauty bag
  10. Amazing product for my super dry damaged hair

    Love, love, love this product and use it every day either after washing or before using the iron on my hair which is super dry and damaged. Makes my hair silky smooth and easier to deal with.
  11. Overall a good leave-in

    Leaves hair soft and smelling divine - however, it can be a bit oily so it’s important to only apply to the ends and not go anywhere near the root!
  12. Leaves my hair so soft

    I love this serum, it leaves my thick frizzy hair so soft and shiny. I highly recommend!
  13. Average

    I have blonde ends and i thought this product would work really well to helpm moisturise and make my ends feel soft. I thought it was very average for the price, didnt do anything amazing and the smell is pretty strong. I have used much cheaper hair oils like loreal repair lipidium and that makes my hair feel 10x better than thisone.
  14. Love this product

    Really love this product. I've been using this product as a moisture boost and heat protectant for 3 years and love it. My only bugbear is that the clear side always runs out faster than the creamy side! Otherwise, very good product!
  15. Essential for blonde hair

    I can't live without this product. Once washing and towel drying my hair I smooth this through the ends. Since using it consistently my hair is healthier and in a much better condition. I have tried similar products on the market however nothing compares to this.
  16. Love it

    This serum is great, I bought it 3 weeks ago and I love it! It leaves my hair soft and silky but doesn't weigh down my hair. Definitely recommend.
  17. Love it!

    I have used this since becoming blonde in October 2017 and is definitely a huge contributor to how healthy my hair is. I cannot live without this! Smells great and is very light weight for my hair, you only need to put this on the ends.
  18. Repair your damaged hair!

    My hairdresser recommended this product to repair the damage to my over-processed hair. I was a little skeptical at first but this product WORKS!

    I scrunch a couple of pumps through the ends of my shoulder length, medium thickness hair after washing and it dries well naturally and when I'm heading out, styles beautifully.

    The formula is light and never makes my hair greasy and has completely restored my damaged hair to near perfect condition.

    I'm currently transitioning from dyed to natural silver/grey and my silvers are sparkling and even the dreaded frizz I used to suffer from is gone.

    If you have damaged locks or curly/ frizz prone hair, even if it's grey/silver, then this product is for you!
  19. Great for fine hair!

    I was using the Shu Emura one which is beautiful, went to this one as it’s a bit cheaper and the Shu Emura one was on backorder anyway. I can’t tell the difference! Really lovely product. I notice a difference in how easy my hair is the brush if I don’t use it. Highly recommend purchasing for fine dry knotty hair.
  20. Yates

    I haven’t been using the product long but I have already noticed a huge change in my professionally lightened ends, it feels and appears softer and the smell of this product if anything sells me on it.
  21. Wow

    Works great for dry brittled hair amazing before blow dying hair feeling your hair so soft
  22. Love this

    I use this after every wash and if I ever forget I notice the difference! Helps my hair feel smooth and nourished, and smells amazing. Just a shame that it doesn’t last as long as other products as I do find I need to use a generous amount
  23. Love this product

    I love this product! My hair is course and blonde. I straighten it daily. This product is my hairs savour. The only problem I find is I go through it way too quick. Great product!
  24. Love it

    My hair has been extremely dry and damaged after stripping the colour out of it. I brought this and after one use it has already left my hair sooo soft. I applied it after washing and blow drying and my hair feels like silk this morning.
  25. Great before styling

    This product is great when used on damp hair before using any styling implement as I find it protects my hair from heat. I have bleached blonde hair and it leaves my hair soft and shiny.
  26. Love it but...

    I have long, dry, blond highlighted hair and this product works a treat. It smells amazing and makes my hair much softer and conditioned. The only problem is it doesn't last very long and it's maybe a little more effective than the Kevyn Murphy young again serum but a bottle of that stuff lasts me about 4x as long as this serum does.
  27. Great for bleached hair

    I bought this because my hair is so damaged and straw like from years of being a blonde. I can honestly say this has completely transformed my hair. Less flyaways, it feels soft and bouncy. Looks and feels nothing like how it used to. Only drawback is the price. But I am hooked and won't go back.
  28. great for blonde damaged hair

    this product doesnt last long considering how expensive it is but it is amazing and really helped my bleached damaged hair
  29. Liquid gold!

    I have spent most of the past year bleaching my hair and needed to address some breakage and the dry condition of my hair in general. I use this after every wash/condition and have found that my hair has slowly recovered and is back to being soft, with not so many 'fly-aways'. A great product if your hair needs a little TLC and protection.
  30. The Best!!

    My hair has been through a lot of bleaching. I had given up on it ever feeling soft.. then I tried this serum. After washing, I allow my hair to dry a bit and then apply this liquid gold. My hair feel amazing afterwards. I will definitely repurchase.
  31. Amazing

    Love this serum, it instantly leaves my hair feeling softer. Feels light when applying, but does have a slightly greasy finish to it.
    Highly recommend this product. Had severely damaged hair from transitioning from dark brown to a light balayage. Now have super soft and highly hydrated locks
  32. AMAZING

    Totally worth the money, it’s been one of my favourite hair products for years and it’s still is. It’s last ages too which makes up for the price
  33. Amazing!!!

    This stuff is absolutely amazing.. my ends feel horrible & I use 1pump of this & it does my whole ends.. the bottle is only 30mls but it lasts for ever.. I have quite thick hair I would recommend this to anyone.. it has done wonders for my hair.
  34. Amazing!!!

    This stuff is absolutely amazing.. my ends feel horrible & I use 1 pump of this & it does my whole ends.. the bottle is only 30mls but it lasts for ever.. I have quite thick hair I would recommend this to anyone.. it has done wonders for my hair.
  35. It's actually pretty good shame they aren't cruety free

    It made my hair really soft and silky but like most serums has silicones in it which I now am trying to avoid.

    But definitely makes your hair feel awesome.
    Not sure if it repaired my ends though seemed temporary.
  36. For severely damaged hair

    I tried to love this product but it was just a bit too much and too heavy for my (probably too healthy) hair. I do feel like this would be a fantastic option for a severely damaged hair that’s in need of major TLC..
  37. Exxy but worth the treat

    I buy this product when my hair starts to feel dry or I find more split ends than usual. I used to use it after each wash but found it tended to start to build up in my hair and make it kind of greasy. Now I use it when I know my hair needs a pamper.
  38. Amazing

    This product is by far the best product I have ever used. My hair is extremely damaged, and it is the only product I have used that makes it feel sily, removes frizz and softens.
    I also rub into dry hair to tame pre styling.
    Also works as a heat protector up to 200 degrees (so my hairdresser told me) so it is really the only product I use after washing.
    It is expensive and I use a lot, however it is totally worth every cent.
    Cannot recommend this enough
  39. So luxurious!

    This is my second bottle of this amazing product. I have naturally white hair but due to over colouring it it's extremely dry and brittle. After one use of this treatment I noticed a difference. Definitely worth the price as you only need 1-2 pumps each time. And it smells lovely.
  40. Highly recommended

    Highly recommend this product. Had severely damaged hair from transitioning from black to blonde. This product helped tremendously. Now have super soft and highly hydrated locks.
  41. So hydrating

    Love this serum, it instantly leaves my hair feeling softer and gives it a wonderful gleam. Feels light when applying, but does have a slightly greasy finish to it.
  42. Great for damaged hair

    My hair has been over processed going from Dark Brown to dark blonde - having been bleach bathed and foiled and I was searching for products to help with the breakage and to help repair it in between colouring. Kerastase has always been the number one go to for me in combination with other products. I found that Olaplex hasnt made too much difference so far and Im using another Deep conditioner by Davines and O&M to break it up so Im not using protein every wash.
    So far the product helps smooth my hair with blow drying and smells amazing. Its quite thick so you only need to use 3 pumps for long thick hair like mine. Ive used it both on wet hair and then after I dry it. My hair is quite damaged so I will keep using this along with the Pre shampoo and the shampoo balm and see what the results are in 2 months time.
  43. Great product

    This product has been great on my hair. Especially because I have thick hair. Smells great, good for before styling and is lightweight.
  44. Highlighted Hair's Saviour

    This product has repaired my highlighted hair. It does not leave hair feeling weighed down, but deeply nourishes and repairs. Worth the price tag.
  45. Great for adding moisture and shine

    I have been bleaching my hair for the last 3 years, and only at my last hair appointment was this product recommended, and I have been missing out! Is slightly expensive but your hair will reap the rewards, my dry hair certainly did! Love it, will be again and recommend the investment
  46. Expensive but worth it!

    I have dry blonde hair and this serum has helped it a lot. It makes styling a lot easier and have noticed a difference in my ends and makes my hair feel so soft. It is an expensive product and you don't get much but it is Kerastase, so you get what you pay for. Definitely.recommend!
  47. great product

    I love Kerastase products and tried this serum for the first time. My hair has very dry ends with lots of breakage and this made it look glossy and healthy. You only need a small amount as to not cause build up. Would purchase again!
  48. worth the splurge!!!

    i use only thing on my hair after washing it (i just started using the olaplex 4 and 5) and i cannot express how beautiful this had made my hair! i usually have to wash every night or it will get super greasy the next day but this in conjunction w the olaplex it has completely changed my hair!! will be repurchasing when i run out! the only thing that is disappointing is you really don’t get that much product and the bottle is a bit deceiving but no worries as you do not need to use much at all! :)
  49. Improved hair texture

    Improved my hair texture with regular usage .
  50. Love, Love Love this product!

    My hair has been through the ringer with colouring it and heat styling tools and this smooth sit out and makes it feel so soft!
  51. Dreamy

    This serum smooths like a dream and smells like a dream. I have recently been trialing this full range for my fine, bleached, unruly locks and highly recommend all products. This serum leaves my hair silky smooth after an intense blow dry and the ends look tidy rather than frazzled. My only issue with this product is the deceiving size of the bottle - it looks like you're getting at least 70ml but it's just sneaky packaging - it's only 30ml and for my long, tired locks I don't imagine this will last that long.
  52. Saved my hair

    This Kerastase serum really turned the condition of my hair around! Having fine, long, blonde-coloured hair that is blow dried and straightened a couple of times a week, split ends were a constant. Until I started using this serum prior to every blow dry. Just one pump into my palms and rubbed through the lengths and ends of my towel dried hair has literally performed miracles! My hairdresser wanted to know what I had been doing also!!
    I will now not be without this product. I love it!
  53. Amazingly recommended

    I have been using this serum since few days ago and it amazing fabulous how it makes the hair shine and smooth and the smell is just wow. I would recommended this site also with 100* +++++++
  54. Gives shine

    So this product made my dull hair feel glossy but it does have a high dimethiconol content (silicone) my tip would be to use sparingly so not to get a build up or use a good clarifying shampoo before getting hair coloured but ill keep using while my halr grows but sensibly
  55. amazing!

    No doubt this product delivers! I have always enjoyed Kerastase products and am always happy to pay the price for a great hair product, especially when they work as intended!
    This serum has helped my bleached hair to repair and protect them before, during, and after styling. I separate my hair in 2 sections and use one pump per section (2 pumps total) on the lengths and ends only. I have seen considerable changes after the second application. My ends seem sealed and hydrated as if I just had them trimmed!
  56. Fantastic!

    A fantastic serum! My hair is bleached and this has literally saved my hair. It is in such good condition and my hair dresser cannot believe it!
  57. Kerastase = Saviour

    I love Kerastase so much! When my bleached blonde hair needs a serious pick me up I am straight to Kerastase. I used this in combination with the rest of the Therapiste range and it worked wonders. It contains protein which my hair only requires in moderation. I now use this range in combination with moisture treatments and it works so well to keep my blonde hair intact and healthy. Worth the money. Fab treatment.
  58. Three Words - SAVED MY HAIR!

    This amazing bottle of hair product has saved my long dry hair.
    100 percent worth the price, can't imagine never not using it.
  59. This is the best leave in serum on the market

    I have very dry damaged hair, i have tried Blond Pro, Olaplex, Loreal Serum, all of it. I've spent a fortune. I used this serum for the first time this morning when i got out of the shower and my hair is already nourished and healthy. It has actually stopped it looking brittle and dry...in the first application!
    i cannot recommend this product enough. I know it's expensive but it is 100% worth it if your hair is fatigued like mine (thin and colour treated).
  60. You won’t regret this purchase

    This will save your split ends like nothing else on planet earth. I like to have long hair but I do get damaged ends. This stuff is quick and easy, just swipe across ends and they immediately look and feel much healthier, as well as being easier to comb. Expensive, but a bottle will last ages and ages. Very happy with this purchase, will buy again.
  61. Can’t go a day without it

    Where do I start with this product? I have dry, thick, long hair with many split ends/breakage. After I shower I apply around 3-4 pumps of this serum firstly before any hair creams/oils onto my hair and immediately it looks revived. Years of damage and a lack of trimming, yet this product is so potent that it seals breakage, softens and transforms my brown locks. It has a transparent thin consistency serum pump out along with another white cream that is silky but much thicker in consistency. I can’t put into words how miraculous this product is for my hair, this was my first time trying a kerastase product and I’m not disappointed. I know this product is pricey considering you only get such a small amount BUT it works wonders and a lot of hair products I have tried have not come close to how hair transforming this serum is. I’m going to integrate this hair serum into my hair routine for years to come.
  62. great for thicker hair

    I have very fine, bleached hair, and I found this a little heavy for me, but I think it would work well for someone with slightly thicker hair, great fragrance!
  63. Can live without it!

    I love this product from Kerastase.
    My hair was so dry and snapping off.
    I tried so many products and none did the job like Kerastase. It is a little pricey but it's so worth it.
    Loved how quick the product was delivered.
  64. Split End Savior!

    So I've been on a hair growth journey for a year now and this product has been a life saver. I've noticed that I'm able to go 6 months without getting a trim because it keeps my ends in such good condition. I definitely notice the days that I forget to put it on as well, my ends definitely feel more brittle and like they're about to snap off. It can be quite a heavy product if you let your hair dry naturally after putting it in, so unless you're blowdrying I'd recommend just applying it to the ends.
    If anyone is interested my hair went from being (at the longest) down to my eyebrows at its shortest a year ago to shoulder length today. This stuff is a huge part of that, so thanks Kerastase!
  65. Highly Recommend for Brittle Blondes

    I recently purchased the Therapiste Range for thin hair which included the Dual Treatment serum. I was suffering from bleach breakage and my hair was stressed and frizzy. I was a little cautious given the price of the products, having shelled out for "top of the line" treatments before, including Olaplex, which has often resulted in feeling like I've wasted my money. I was highly impressed with this range though. It really nursed and conditioned my hair. Use sparingly, it will work its magic and last quite some time. I made my original purchase September and am only just reordering.
  66. Excellent, but expected from Keratase

    Received today and love so much had to write a review immediately.

    Pump expels both oil and cream via dual pump. Emulsify in hands and run through hair. I haven't tried to blow dry with product yet but on dry hair alone feels very luxe. My hair is foiled blonde so is prone to dryness. Has already nourished the ends and left super glossy.

    As with all Kerastase products, outlay is expensive but justified by quality.
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