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Kérastase Resistance Thérapiste Dual Treatment Serum 30ml 30ml

4.8 of 125 reviews


4 instalments of $13.50

Or 4 instalments of $13.50 with LEARN MORE

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4 instalments of $13.50

Or 4 instalments of $13.50 with LEARN MORE

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Repair your hair double time with Kérastase Serum Thérapiste Dual Treatment. A unique 2-in-1 repair treatment for thick, damaged, or overprocessed hair, this dual oil and cream formula penetrates deeply into the core of the hair fibre to renew and repair the hair from within. With consistent use, hair is toned, smoothed, and revitalized. Infuse your hair with healing nourishment with Kérastase Serum Thérapiste Dual Treatment.

What customers say

SUPERIOR - 98% recommend

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  • 20s
  • 30s
  • 40s
  • 50+

Hair Concern:

  • Fine or limp hair
  • Breakage and split ends

Hair Curl Type:

  • Curly
  • Straight
  • Very curly/African/Caribbean
  • Wavy

Hair Texture:

  • Fine
  • Medium
  • Coarse

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Kérastase Resistance Thérapiste Dual Treatment Serum 30ml

Kérastase Resistance Thérapiste Dual Treatment Serum 30ml

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Kérastase Resistance Thérapiste Dual Treatment Serum 30ml Reviews

4.8 of 125 reviews

98% recommend this product

  1. 102

  2. 29

  3. 2

  4. 0

  5. 0

Most Helpful Positive



smells amazing and helps with frizzy and damaged hair

Most Helpful Criticism

Smoothen my hair


This is my second bottle and I am loving it. I apply this serum to my dampen hair before drying and styling. It soften and detangle my hair, my hair feels so smooth while I am drying. However it doesn't add much shine to my hair, it smells nice.
  1. hydrating


    smells amazing and helps with frizzy and damaged hair
  2. Soft and cared for!


    This is such a great product, Kerastase knows their stuff. My hair always feel soft, tamed and shiny. My ends also feel stronger and softer. My sample has lasted a while, T use a small amount each time.
  3. Smoothen my hair


    This is my second bottle and I am loving it. I apply this serum to my dampen hair before drying and styling. It soften and detangle my hair, my hair feels so smooth while I am drying. However it doesn't add much shine to my hair, it smells nice.
  4. Great


    Excellent leave in, very conditioning and smells amazing
  5. Replenishing treatment


    This product helps to replenish my dry and damaged hair. I noticed a big change to the hair health and touch after just a few uses. I pop it in wet hair and follow with a heat protectant. This serum is honestly one of the best products I have ever used in my hair.
  6. I love this product!


    I love this product. I was introduced to this brand of hair care almost 8 years ago by my hair dresser and have never looked back. I really recommend this product. If you try it you won’t be disappointed. It smells beautiful and makes your hair feel silky smooth.


    OMG - What an amazing product. I watched the video that Amelia Porter from Adorebeauty posted and I purchased all the products that she was showing and I followed her instructions and can I say WOW my hair feels soft, silky, shiny first go.
  8. My Hair Has Never Been So Healthy!


    I have always had shocking hair; split ends, very frizzy, dull and dry. I started using this product and after several months I saw my hairdresser who couldn't believe how healthy my hair was. Split ends were minimal, it was silky and soft and actually looked and felt healthy. I love that I don't have to blow dry or straighten the hell out of it anymore to get rid of the frizz. My only pain point ...
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  9. Great for thin hair


    I have extremely thin hair that's prone to breakage. My first hairdresser visit after using this serum I was complimented on having nearly no split ends, which I attribute to this serum. I use one pump nightly. I have already repurchased.
  10. The best hair serum!!


    I purchased this item last Christmas and it's really fantastic to my dry and damaged hair.They just look so shiny and moist after using this serum!!Will keep using it!
  11. Liquid Gold


    Within a week you can instantly feel the effects of this product on damaged, dry and brittle hair. Amazing in wet hair before a blow dry or after as a styling serum.
  12. Amazing!


    This serum is my favourite serum yet. The dual serum and cream pump needs a few pumps at first to have them dispense together (I had a faulty pump on my first bottle but had it replaced with no dramas). I use 2 pumps from mid lengths to ends after washing, and my hair is so easy to brush and dries with no frizz. It really smooths my hair out, and a little on the ends after heat styling makes it so...
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  13. Amazing for split ends!


    I have thin hair that is really easily broken/damaged, and also goes frizzy. I have noticed such a difference since using this product, even my hairdresser is amazed! No split ends anymore, product goes on really nice and as always, kerastase products have such a lovely smell!
  14. Love this hair serum


    This hair serum is amazing, it not only smells great but has assisted in repairing my bleached and damaged hair
  15. love love love this


    I only just recently discovered this serum and I gotta tell you, this is amazing! leaves my hair so so silky and soft, I can't live without this now! I use just 1 pump after a shower when my hair is wet and find that is more than enough (maybe use 2 pumps if you have really thick hair)! I found no new split ends with using this serum as it help hydrate my ends.
  16. Finally this product worked for me.


    My hair is thick, coarse, highlights, long lengths. None of the other products worked ONLY this. But I do have to use at least about 8 pumps due to length and quantity of my hair.
  17. Holy grail


    I adoreeee this serum. It is perfect if you have thicker/drier hair and need nourishment. I didn’t expect the bottle to last me very long, but to my surprise it seems to keep going! It’s super hydrating, smells amazing and makes my curly hair smooth and manageable. I do think it’s helping with breakage as well. Will definitely be repurchasing x
  18. Nice product


    I found it helped repair my damaged hair. It is a little heavy so I only use a small amount. Probably better on thicker hair, but I still really like it.
  19. Surprisingly amazing!


    I was sceptical about this serum being different to any others I’ve tried over the years, but a friend recommended it to me and it was truly incredible. It makes my hair so soft and manageable, and feels as though it is repairing it as well as smoothing it. I have damaged, thick and frizzy hair and this serum is my new best friend. Plus, it smells amazing! I can’t wait to start using the shampoo a...
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  20. Holy Grail


    I have bleach blonde hair and unfortunately it got damaged quite badly at the start of the year. I have spent so much money on products and tried everything and by far this is the best thing money can buy! It’s only a small bottle and a bit pricier but a little goes a long way. You pump it out and it’s like a serum and a cream that you can mix together. I use this everyone I dry my hair and I can’...
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  21. Never without this!


    This is the BEST hair leave in product I have ever tried in years. I don’t know how I’ve lived without this before. Makes your hair feel smooth, soft, glossy and repaired. It doesn’t make your hair oily and it doesn’t build up over the days. BEST BEST BEST!
  22. Awesome for thick hair but such a small bottle for that price!


    Have absolutely loved using this product! Awesome before I blow dry and style my hair. Love how soft and touchable my hair is! Only fault is that it is so expensive for such a small bottle!
  23. A must have


    Absolutely in love with this product. It leaves my hair so soft and shiny. I’ll definitely will buy it again.
  24. great treatment


    great for rehydrating your hair, leaves it soft and manageable
  25. Nice and smooth


    This made my hair nice and smooth after bleaching, however it loses a star for having silicones as an ingredient. I wish Kerastase would make one of these minus the silicones, as I don't use a sulphate shampoo to remove them!
  26. love it


    I really love this product. It makes my hair feel amazing and smells great. It lasts for a long time to because you only need a small amount.
  27. Amazing for split ends


    Perfect product for intensely damaged and over styled roots. I find it less heavy than oils and also more nourishing. I use it after blow drying and before straightening.
  28. Not my thing


    This serum was definitely not the right product for my hair as I found that my fine straight hair was just weighed down and moisture was not locked into my hair leaving my hair to dry out just like normal .
  29. Perfect for thin frizzy hair


    I have been using this for a while, it’s pretty good I have very fond hair from female pattern baldness which makes it really hard to style straight out of the shower. My hair usually dries frizzy, but when I use this it dries smooth and silky!
  30. Must Have


    Hair feels so much better after bleaching. Has stopped breakage after only a couple of uses.
  31. Lovely serum for damaged hair


    I love this serum! It definitely smooths the ends of your hair but does not weigh it down! It smells beautiful and feels very silky in the hair as it is a finer texture serum. I don't mind the packaging but one side/colour of the serum always seems to run out faster than the other, even when pumped evenly together. The size is also quite small and so if you have long hair, this will not last very ...
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  32. Beautiful Serum!!


    I have been using this serum for a couple of weeks now and it's so beautiful, the smell and texture of it really adds to the luxurious feel. I use this serum because I have rather dry, damaged ends from coloring my hair and this has worked to add some moisture and shine back into my hair as well as making my hair smell amazing!
  33. My Holy Grail!!


    I can't even begin to praise this product enough! If your hair is dry or damaged, you NEED this!!!
  34. Staple


    This product is my holy grail for my blonde hair. I am a fan Kerastase, but this takes the cake in terms of texture, hydration and smell of my hair. Make sure you get both serums in a pump when using to ensure maximum effects.
    Only downside is, for as much as you pay for, I feel it needs to be a (slightly) bigger bottle.
  35. Best serum


    I have had my hair bleached for about 12 years and have a hairdressing background and have nothing found anything that compares to this serum. I have fine hair but a lot of it, it doesn't way it down, it helps with fly aways and repairs the damage from bleaching and heat styling.
  36. Magic Potion!

    Abbey MS

    I have very fine hair that is easily damaged and has bad split ends. This serum works like magic, smooths flyaways and makes my hair feel shiny and healthy again. Normally hard for me to find leave-in products that don’t weigh down my fine hair, but this stuff is absorbed so well and doesn’t leave an unnatural texture in my hair, but leaves it so nourished!
  37. Must have!


    Hi, I founded finally great great treatment for my hair damage/dry, coloured, split ends. After treatment my hair are silky, smoothly. I put on hair a few times and wow - this is it!Try it and you can't be disappointed.
  38. Lifesaver for BROKEN Ends


    There's no such thing as a hair product that actually repairs split ends but this product does a great job at hiding split ends and making hair look healthy. I use it before and after straightening for a silky, healthy looking finish. Seals ratty ends really well.
  39. Lifesaver


    I am on dialysis which was ruining my hair, I have really long hair which became dry and falling out.

    I use this product twice a week a which has improved my hair immensely. It is no longer dry or splitting.
  40. worth the money


    I apply this after washing my hair and it makes a big difference but I don't think it made much of a difference to my dry blonde hair when it wasn't wet.
  41. Amazing Product!

    Sam S

    Onto my second bottle of this treatment. It's amazing for all hair types! My hair is frizzy, dry and oily at the same time. I never normally used serums in the past because my hair doesn't respond well to them, but this one is light and so effective. I use the serum on damp hair and then again a few times during the week before styling. It works perefectly on dry hair, almost fixing any damage fro...
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  42. LOVE


    As someone with dry, damaged hair, this treatment is an absolute god-send. It's smoothing, hydrating and strengthening, and basically everything I've ever wanted in a hair product. My hair is on the finer side, so I use it sparingly and never find that it weighs my hair down.
  43. This is a hair product that really really repairs split ends!

    Jillian T. via BeautyCrew.com

    This is a hair product that really really repairs split ends! I have really fine and dry hair (regular hair colour, previous perms, regular heat styling). My hair is also long, nearly up to my waist line. So yes, i have split ends. This product is really 2 products in 1. It has a cream component and a serum compotent. So when you press the pump, make sure you press it all the way down so it delive...
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  44. This product was recommended by my hairdresser because my hair was damaged by hairdryers and straightening. 

    Jaime White via BeautyCrew.com

    This product was recommended by my hairdresser because my hair was damaged by hairdryers and straightening.  WOW this product is absolutely fantastic after washing my hair a use 1-2 pumps and it covers all ends and after a few weeks I could see and feel the difference in my hair it was soft and didn’t have split ends and it didn’t look dry at the ends which bothered me before. It is well worth the...
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  45. love this product


    love this product made my hair so soft and hair feels stronger after using it and will be buying it again . I recommend it for bleach dry hair
  46. good


    good treatment, smells nice and leaves hair feeling soft.
  47. Saved my ends

    Can’t live without this!!

    Okay so bought this on a whim and Now I’m on my second bottle. It makes t hair feel really smooth and doesn’t leave it heavy or greasy. Ya helped repair my damaged ends and reduced breakage. I’ve used many serums in the past but this is one I will keep going back to.
  48. Transforms your hair


    This serum is amazing. I can see results after using it just a couple times and it smells wonderful. I get blonde foils done is a regular basis and this repairs my ends, leaves my curly hair manageable and easier to style. Definitely worth the price.
  49. Saved my ends

    Can’t live without this!!

    Okay so bought this on a whim and Now I’m on my second bottle. It makes t hair feel really smooth and doesn’t leave it heavy or greasy. Ya helped repair my damaged ends and reduced breakage. I’ve used many serums in the past but this is one I will keep going back to.
  50. A little goes a long way


    This serum smells so good and I only use half a pump in the ends of my towel dried hair!!! Once I've done my blow dry my hair is so soft and smells divine with no oily feel at all!! Definitely recommend.


    I bought 3 bottles of this product so far and I'm addicted! It doesn't weigh your hair down, it does an amazing job in taming frizz and fly aways, plus it smells like expensive perfume.
  52. Not for fine hair


    I wanted to love this. I really did. Firstly the smell is so amazing. I'd buy it again just for the smell. However I have fine hair and its easy to go a bit overboard with this and create a greasy mess. I will put the tiniest tinest amount through the ends of my hair and it leaves them soft. Overall I think this would be amazing for thicker hair but not if you've got fine hair like me.
  53. Absolutely amazing


    Absolutely amazing serum! Really lovely formula that smells amazing and instantly transforms my hair into lush silky locks
  54. Like it


    I really like this, it makes my hair soft and manageable. I put it in when wet and it makes it easier to brush
  55. Smooths and Repairs


    I love this Serum ... I have bleached blonde hair and this serum smells amazing but also added to the lengths of my hair helps repair the broken and split hairs, my hair feels a Million dollars ... no frizz and not heavy on my hair.... Absolutely worth it !!!
  56. A bleach blondes best friend


    I don’t know what I’d do without this serum. I use everytime after washing my hair for an extra boost of moisture and strengthening. I also use it in between washes on the very ends of my hair if they start to feel dry. I love the cream/oil combo, it feels rich and creamy and smells beautiful too.
  57. I love this!


    This is such a amazing serum to use, I love the fact it pumps out 2 serums from 2 different barrels inside. But a pump and half is all I need on wet hair, and gives it a bit more life and repair, and leaving it smelling so good, my boyfriend will always tell me I smell so good
  58. Hair saving


    Definitely recommend this product. Saved my blonde hair from constant breakage & a little product goes a long way so it lasts a while. Definitely worth investing in this product if you bleach your hair.
  59. Amazing but can be a bit heavy


    I love this product, it makes my hair feel super soft and generally healthier. I have thin bleached hair so it can be heavy and make my hair oily if I use too much but it is definitely worth the price tag! I find it lasts about 3 months and I was my hair every second day
  60. Worth the dollar


    I love this serum and have been using for a few years now. It’s a little more expensive but a bottle lasts me 2-3 months and I wash my hair most days. It makes a noticeable difference to the texture of hair and I definitely have less breakage when using this. I recommend
  61. Best leave in treatment


    I’ve been constantly bleaching my hair, and was feeling dry and no hydration! This leave in treatment, gave life into my hair again!
    I just ran out of this product and noticed the difference within a few weeks, that my hair was no longer as strong!
  62. This works but there isn't much product


    Repaired my heat damaged ends but this doesn't last long as there's not much product; only use a small amount each time.
  63. Great for damaged hair!


    Since using this product the quality of my hair has completely changed. I was bleached blonde for 7 years and my ends were an absolute mess. Now its stronger and shiny!
  64. You need this in your life


    This is the best product on the market for dry damaged hair. It actually repaired my hair from frizzy blonde to a lush shiny blonde. And when I brought it I didn’t believe that it would do what it’s done. 100% recommended this product for anyone that dyes their hair lighter and still wanting healthy feeling and looking hair
  65. Works well


    This serum works so well, it’s great to have on hand when my hair is struggling a little, it’s a powerful product and a little goes a long way, makes my hair look sleek again and removes frizz
  66. Leaves ends so silky


    Works great on damaged ends


    WORTH EVERY CENT!! This treatment added the most incredible shine to my hair! My hair has never been healthier, I get compliments daily. Expensive, but I would pay more. It's. THAT. Good.
  68. Expensive, but worth it


    This is one of the few hair products that actually makes my hair feel amazing. Two pumps before a blow dry leaves my hair feeling silky and soft (I have fine, over processed hair). My only criticism is that even though it says 30mls, it is actually 2 x 15ml chambers, which are used together. So you go through it quite quickly. I also found the silky effects don’t last beyond one wash. Despite that...
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  69. 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.
  70. 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 :)
  71. 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!
  72. 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
  73. 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 t...
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  74. Whole range is amazing


    If you have damaged hair this product is amazing. The serum helps smooth and a little goes a long way
  75. 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.
  76. 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...
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  77. 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 m...
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  78. 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.
  79. 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!
  80. Leaves my hair so soft


    I love this serum, it leaves my thick frizzy hair so soft and shiny. I highly recommend!
  81. 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.
  82. 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!
  83. 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.
  84. 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.
  85. 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.
  86. 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 gre...
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  87. 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.
  88. 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.
  89. Wow


    Works great for dry brittled hair amazing before blow dying hair feeling your hair so soft
  90. 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
  91. 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!
  92. 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.
  93. 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.
  94. 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.
  95. 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.
  96. 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
  97. 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.
  98. 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.
  99. 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
  100. 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
  101. Review & Earn
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