Kérastase Sérum Oléo-Relax (125ml)


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Kérastase Sérum Oléo-Relax is a smoothing serum to discipline fine dry, frizzy, unmanageable hair. Its softening formula will leave hair silky smooth and more manageable whilst boasting incredible shine.

Kérastase Sérum Oléo-Relax is formulated with Nutri-Huile Complex and Anti-Frizz Protection formula which work to smooth and nourish your dry, frizzy, unmanageable hair. Hair will benefit from improved softness and long-lasting volume and control.

Directions of use:

  • Place one pump of Élixir Oléo-Relax into the hands and work through the lengths and ends.


Product Details

  • 125ml

Delivery & Returns

Express Delivery Available - If ordered before 9pm, delivered by courier next working day. More Info »

If ordered before 9pm, delivered by courier next working day. Available on orders placed before 9pm (2pm weekends and Bank Holidays) for delivery next business day. Applies to most delivery addresses within mainland UK.

How long will it take to arrive?

Please check the stock availability notice on your item when placing your order. This item is: In stock | Usually dispatched within 24 hours

Please remember to add postal time (2-3 working days) to obtain a complete estimate of delivery to your door.

How will I know it has been sent?

You will receive an email to confirm when your item has been sent.

You can also check the status of your order and individual items by accessing My Account details and following the prompts.

Please allow 10 working days from dispatch of your order before notifying us of any late deliveries.

It may be advisable to check with your neighbours to see if a parcel has been left with them, check any outhouses you might have where it may be left if it cannot fit through your letterbox and contact your local sorting office to see if the item has been returned to the depot as undelivered and awaiting collection.

If I'm not completely happy with my item?

Please see our returns policy.

Customer Reviews




(120 Reviews)

  • 5    98
  • 4    13
  • 3    8
  • 2    1
  • 1    0

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Showing 1 to 50 of 120 reviews :
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Smooth product!

I really love Kerastase products for my curly, unruly, frizzy mop! I use both the Nutritrive Curl and Relax products and find that this serum works well with both. It really does help to control my hair and to keep the frizz at bay.

22 January 2015 by


Five star: Kerastase Serum Oleo-Relax

This product delivers exactly as it promises - smooths fine, dry hair leaving hair manegable and beautifully smooth and shiny. As I have very fine and wavy hair myself, I have at times felt in despair after investing in many products that have proved to be nothing but a disappointment. Thankfully, this product is not one of those. It seriously delivers everything it says it will, and always leaves me feeling confident and thrilled with the outcome! All Kerastase need to do now, is to develop a product that's effect on hair is semi-permanent. When they develop this, a product that produces an effect that turns wavy hair into a manegably soft and shiny body wave that is semi-permanent, guess who will be standing at the front line waiting to purchase this - you've got it - me! Thank you Kerastase :-)

12 January 2015 by


Kerastase serum oleo-relax (125ml)

Love this product and have introduced to my friends and they buy it also. If they can offer economy size is better.

23 December 2014 by


The BEST in kerastase range!!!!!!

After trying most of the Kerastase products... this is by far the best for my dry hair, i have been purchasing this range for years and none of the new kerastase products compare....

23 December 2014 by


Quite Good

I usually love Kerastase products but I'm not sure about this one, it's the first time I have used it and other, cheaper serum's do just as good a job. Not sure I will buy it again.

10 December 2014 by


Great product

I used this product several times. It is really good for hair with awesome smell!!

5 December 2014 by



I love the product but wasn't pleased as my delivery was put in the wheelie bin not very practical as it was bin was the next day and if I had been away it would of been gone!!!!!!

1 December 2014 by



It is very great! Work to smooth and nourish unmanageable hair.

30 September 2014 by



My hair is very fine, long, curly and coloured, with damaged ends. I tried this product both on damp and dry hair, but I feel it is too much for my fine hair: it left my hair heavy and after few hours the ends were really dry. I keep using lots of Kerastase products, I love the brand, but, in my opinion, this is not the suitable product for fine hair, even if damaged and dry.

2 September 2014 by


Just for dry hair

This is excellent on dry and frizzy hair, but on other hairtypes it may be little too much. It makes hair very manageable and soft. It is good product, but too much for my hair, thats why I will use similar product - Kerastase Fluide Chroma Riche.

23 August 2014 by


Gread serum, my hair are soft and shining after using it!

1 July 2014 by


Along with the mask and shampoo, this has done wonders for my hair which was practically dead from my hair straightener. It keeps my almost afro hair under control. A bit on the pricey side, but products I definitely recommend.

27 May 2014 by


Excellent product

This serum has really helped smooth out and tame my very frizzy and coarse hair. I do have thin-ish hair and I've noticed that I can very easily over use it and then it just ends up weighing my hair down. The product itself has a very strong rosey scent, which I don't mind, but if it's something you know that'll bothers you then you might not want to buy it.

2 May 2014 by



smoothing serum to my discipline fine dry

18 April 2014 by


Kerastase Serum

I love this product, I have very fine hair and its naturally curly and the damp weather and makes it go all fizzy but with product i can leave the house in the morning knowing my hair is going to look great all day and it gives it a lovely shine without it looking greasy and the price is great too and it lasts for ages.

12 March 2014 by



hair oil wonderful. hair after him brilliant, well-kept, as after visiting a beauty salon. I use it quite a long time and regularly. really like and recommend to everyone.

25 February 2014 by


This product is perfect! Make my hair smooth and shiny. Wanna buy again

27 January 2014 by


Good & light

The product does make the hair softer. The light texture make it competitive with the oil-products option.

13 December 2013 by


Impressed with this oil. Was after an oil product that wouldn't cost a fortune for a small amount. Have very thick curly hair & wanted something light weight, that would still nourish dry curly hair without weighing it down & making it greasy. Lovely smell too!

6 December 2013 by



This serum is great and left my hair feeling silky soft. Although it is pricey, it lasts ages and is definitely worth investing in!

7 November 2013 by


Perfect produkct.leaves haid smooth and soft

4 November 2013 by



Leaves hair really shiny and smooth, i already got lots of compliments on my hair when i used this product. But be careful not to use too much! I think it really helps to reduce volume and to prevent the hair from being frizzy. Although i would always recommend to use a spray or a oil on top, like the redken argan oil or the goldwell diamond gloss style spray.

2 November 2013 by


fighting frizz

Kérastase Sérum Oléo-Relax is tried and tested! wonderfull! my curly hair doesn´t go up up like other humid days brilliant combating frizz and smoothing! buy again and again

24 October 2013 by


Smooth but unmangeable

I tried this Kérastase Sérum Oléo-Relax as I'm a big fan of Kerastase Ultime Elixir. I found this product to be good at taming frizz, however the results were that my hair was extremely soft and limp, which resulted in it being unmangeable for fine hair. I would stay stick to the Ultimate Elixir if you want manageable, smooth and shiny hair!

24 October 2013 by


Excelente I loved this product I recommend.

22 October 2013 by


Love this oil. I have thick hair but my ends can get dry. It's not too greasy that it will weigh my hair down and the ends of my hair is soft and moisturized.

18 October 2013 by


Best serum ever!

I love this product! It doesn't make my hair greasy but makes sure my frizz stays controlled all day:)

15 October 2013 by


kerastase serum oleo

Just use some Kérastase Sérum Oléo-Relax when curly hair is almost dry. Fabulous!

15 October 2013 by


Kérastase Sérum Oléo-Relax

This Kérastase Sérum Oléo-Relax is a great product. Highly recommended.

7 October 2013 by


Very good!

Very good oil. Makes hair manageable, soft. Hair shine.

5 October 2013 by


This Kérastase Sérum Oléo-Relax makes my hair come alive!

1 October 2013 by



Hands down, this Kérastase Sérum Oléo-Relax is the best serum for dry, coarse hair! I have curly, frizzy coarse hair and I have finally found my holy grail!

27 September 2013 by



I used Kérastase Sérum Oléo-Relax on wet hair and after brushing my hair it is left really light and smooth!! On dry her it adds a shiny touch.

1 September 2013 by



The Kérastase Sérum Oléo-Relax is an amazing product that tames my frizzy hair perfectly! Love it!

16 August 2013 by



I just have one word for the Kérastase Sérum Oléo-Relax - amazing!

16 August 2013 by


Well worth trying

This hair Kérastase Sérum Oléo-Relax does absolutely what it says on the bottle. Gives fuzzy dry hair a sleek shiny look.

14 August 2013 by



I live in a country where humidity is 80-90% during the summer months, so you can imagine what it does to thick hair! Unfortunately I didn't find this Kérastase Sérum Oléo-Relax a miracle product like a few other reviews have said, but it smells and feels lovely on the hair whilst taming it a little bit.

10 August 2013 by



I have a lot of hair, and this Kérastase Sérum Oléo-Relax works as a charm, however I'm not happy with the smell. Too girly.

6 August 2013 by


Kérastase Sérum Oléo-Relax

Fast delivery and solid package. This Kérastase Sérum Oléo-Relax is absolutely great and fits for my hair.

29 July 2013 by



I love the Kérastase Sérum Oléo-Relax (125ml), it makes my hair feel like silk! A little goes a long way, so the bottle lasts a long time. The serum controls the hair and adds shine. Fast shipping, I plan to re-order when I have run out. Thank you very much.

17 July 2013 by


Best one for me

This Kérastase Sérum Oléo-Relax gives my hair the best shine, it feels nice and soft and not so dry. I tried several other products like this one, but this one is certainly the best!

15 July 2013 by



This Kérastase Sérum Oléo-Relax oil for dry and frizzy hair is just excellent. I've long searched for an oil for my dry and frizzy hair, and I've finally found it! I blow dry my hair and straighten it often, so it helps your hair to last longer as well. A really good product, and I highly recommend it!

15 July 2013 by


Can't do without item!

The Kérastase Sérum Oléo-Relax is the one haircare product that I literally can't live without, it transforms my slightly dry and frizzy hair into sleek and manageable tresses without fail. I simply love it!

10 July 2013 by


Kerastase Serum Oleo-Relax

This Kérastase Sérum Oléo-Relax is absolutely wonderful! Highly recommend the company and the product.

28 June 2013 by


Kerastase serum

I am satisfied with this Kérastase Sérum Oléo-Relax product, it is not greasy and has a pleasant smell. It's good for my dry hair! I am also very pleased with the services, shipment and the fact that it arrived in a reasonable time.

25 June 2013 by


Kérastase Sérum Oléo-Relax

This Kérastase Sérum Oléo-Relax is just excellent for curly hair.

17 June 2013 by


Fab product

This Kérastase Sérum Oléo-Relax is a wonderful softening product that restores shine to over-treated hair. It is really good value for money as it lasts for such a long time - you only need to use 2 pumps maximum per wash before blow drying otherwise it actually makes your hair too floppy and lank. It's worth very penny and had made my hair shine again for the first time in ages!

4 June 2013 by


Don't delay for complete control

I used to use another product but it was discontinued. I decided to give Kérastase Sérum Oléo-Relax a try after having used it some years ago, My hair is layered with a flick after using this I know this sounds crazy but I got up every morning for three days and didn't have to comb or style my hair. I use it after styling my hair when it's dry just run it through with your fingers after warming it up in your hands.

23 April 2013 by


Tried others

I have been using this for a few years. I have tried other similar products but waste of money. This one is the best. I would be lost without it. Lasts for ages. Well worth the money.

29 March 2013 by


Good product

I have to say that prior to buying this Kérastase Sérum Oléo-Relax I had been using the slightly more expensive Kerastase Elixir Ultime, which I now think is worth the extra money. I have fine hair (although lots of it) that is pretty frizzy and although the Oleo-Relax serum tends to keep my hair at bay most of the time, the Elixir product is probably what I will revert back to next.

19 March 2013 by

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Kérastase Sérum Oléo-Relax (125ml)