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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




(113 Reviews)

  • 5    94
  • 4    12
  • 3    7
  • 2    0
  • 1    0

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Reviewed on Tue Sep 30 07:32:22 BST 2014 by 


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


Reviewed on Tue Sep 02 12:04:52 BST 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.


Reviewed on Sat Aug 23 18:06:42 BST 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.


Reviewed on Tue Jul 01 11:03:15 BST 2014 by 

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


Reviewed on Tue May 27 00:31:13 BST 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.


Reviewed on Fri May 02 18:53:21 BST 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.


Reviewed on Fri Apr 18 11:00:57 BST 2014 by 


smoothing serum to my discipline fine dry


Reviewed on Wed Mar 12 15:24:20 GMT 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.


Reviewed on Tue Feb 25 05:19:01 GMT 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.


Reviewed on Mon Jan 27 22:45:43 GMT 2014 by 

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


Reviewed on Fri Dec 13 16:35:29 GMT 2013 by 

Good & light

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


Reviewed on Fri Dec 06 08:24:00 GMT 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!


Reviewed on Thu Nov 07 13:39:49 GMT 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!


Reviewed on Mon Nov 04 21:40:58 GMT 2013 by 

Perfect produkct.leaves haid smooth and soft


Reviewed on Sat Nov 02 18:53:01 GMT 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.


Reviewed on Thu Oct 24 19:33:59 BST 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


Reviewed on Thu Oct 24 14:24:32 BST 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!


Reviewed on Tue Oct 22 18:20:24 BST 2013 by 

Excelente I loved this product I recommend.


Reviewed on Fri Oct 18 15:57:45 BST 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.


Reviewed on Tue Oct 15 16:47:53 BST 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:)


Reviewed on Tue Oct 15 03:04:35 BST 2013 by 

kerastase serum oleo

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


Reviewed on Mon Oct 07 19:29:49 BST 2013 by 

Kérastase Sérum Oléo-Relax

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


Reviewed on Sat Oct 05 07:54:22 BST 2013 by 

Very good!

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


Reviewed on Tue Oct 01 18:12:26 BST 2013 by 

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


Reviewed on Fri Sep 27 19:41:00 BST 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!


Reviewed on Sun Sep 01 09:28:18 BST 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.


Reviewed on Fri Aug 16 18:12:52 BST 2013 by 


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


Reviewed on Fri Aug 16 10:42:43 BST 2013 by 


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


Reviewed on Wed Aug 14 18:11:42 BST 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.


Reviewed on Sat Aug 10 18:01:53 BST 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.


Reviewed on Tue Aug 06 15:46:35 BST 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.


Reviewed on Mon Jul 29 03:11:56 BST 2013 by 

Kérastase Sérum Oléo-Relax

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


Reviewed on Wed Jul 17 16:06:26 BST 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.


Reviewed on Mon Jul 15 22:49:15 BST 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!


Reviewed on Mon Jul 15 18:17:26 BST 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!


Reviewed on Wed Jul 10 15:13:40 BST 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!


Reviewed on Fri Jun 28 14:33:28 BST 2013 by 

Kerastase Serum Oleo-Relax

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


Reviewed on Tue Jun 25 09:15:13 BST 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.


Reviewed on Mon Jun 17 18:38:10 BST 2013 by 

Kérastase Sérum Oléo-Relax

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


Reviewed on Tue Jun 04 15:50:37 BST 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!


Reviewed on Tue Apr 23 14:37:02 BST 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.


Reviewed on Fri Mar 29 20:20:01 GMT 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.


Reviewed on Tue Mar 19 17:42:39 GMT 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.


Reviewed on Thu Mar 07 10:07:00 GMT 2013 by 

The Kérastase Sérum Oléo-Relax has a scent of a spring, it's just perfect. And it doesn't leave hair heavy, but smooth and shiny.


Reviewed on Mon Feb 25 17:49:02 GMT 2013 by 

hair serum

Great product.


Reviewed on Mon Feb 25 16:38:53 GMT 2013 by 

Miracle product!

I've been using this product for two weeks and I am so impressed. The condition of my hair has drastically improved in this short amount of time. My hair is actually not terribly unmanageable, it's just a bit dry and frizzy, and while I have straight hair, it's not dead straight, so I always need to either straighten it or curl it. Nothing serious but I felt that i could do with a product to just make it a bit more manageable, calm it down, and improve the condition. This product has done exactly this. I put in a tiny bit before blowdrying and while it feels super greasy (as it's an oil!), you cannot feel it at ALL when your hair is dried. So far my hair is softer and shinier, the ends are a lot less dry, it is not frizzy, and looks so much more groomed when I finish blowdrying! A really great product.


Reviewed on Mon Jan 28 15:11:54 GMT 2013 by 

The best serum - ever!

I love this Kérastase Sérum Oléo-Relax product and have been a fan of this for around 10 years now - it is the best serum that I know of for dry, frizzy hair and I'm lost without it! It smoothes, controls and adds shine to dry and rebellious hair and it also seems to be quite long lasting. Great when used in conjunction with straightening irons too!


Reviewed on Tue Jan 22 12:13:10 GMT 2013 by 

Love the scent

There's a good reason they call this a serum rather than an oil--it is very lightweight and not at all greasy. The scent is delicate and floral, so different from the sickly-sweet, artificial fragrance found in similar products from other brands. It does a good job of hydrating my dry ends, but I feel I should've got a cream version because my hair is quite thick and coarse.


Reviewed on Mon Jan 07 17:06:17 GMT 2013 by 

Kerastase serum Oleo - relax

Because of Kérastase Sérum Oléo-Relax I have been able to let my hair grow. I do have a very frizzy and dry hair, but this product is a great help!


Reviewed on Tue Jan 01 17:18:28 GMT 2013 by 

just great

I started using Kérastase Sérum Oléo-Relax on the advice of a friend and I have continued using it ever since. It is really effective. After drying your hair with a towel, you apply just a little of the product to hydrate the hair's ends.

Kérastase Sérum Oléo-Relax (125ml)

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Kérastase Sérum Oléo-Relax (125ml)