Hydraphase Intense Serum

Hydraphase Intense Serum is rated 4.3 out of 5 by 76.
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30 ml
24 hour smoothing rehydrating serum. Concentrated in high-performing hydrating ingredients
Special Price £15.00 Regular Price £20.00



Intense 24 hour hydration for dehydrated and sensitive skin.

Skin looks smoothed, softer and more radiant.

  • Melt-in, fresh and non-greasy gel texture
  • Intense hydrating serum
  • Contains high-performing hydrating ingredients
  • Fresh and non-greasy texture
  • No parabens
  • 100% hypoallergenic
  • Non-comedogenic
  • Tested on sensitive skin


With a high concentration of La Roche-Posay Thermal Spring Water associated with Hyaluronic Acid fragments alongside Arginine and Serine, two powerful water captors, the formula has dual action: intensely rehydrates by infusing the skin with water; and skin looks smoothed and softened.

Free Shipping

on all orders over £25

Free Product Samples

3 included with this purchase

  • 609713 01
  • Aqua
  • Butylene Glycol
  • Alcohol Denat.
  • Glycerin
  • BIS-PEG-18 Methyl Ether Dimethyl Silane
  • Paraffinum Liquidum
  • Carbomer
  • Sodium Hydroxide
  • Arginine PCA
  • Serine
  • Ascorbyl Glucoside
  • Ammonium Polyacryldimethyltauramide
  • Hydrolyzed Hyaluronic Acid
  • Xanthan Gum
  • Phenoxyethanol
  • Parfum
  • Code F.I.L. : B49041/2
  • Please check back of pack for up to date ingredients

Free UK standard delivery on all orders and Free Returns*

Standard Delivery 3-5 working days**

* If order is placed before 11am on a working day. If order is placed after 11am or on any non-working day then estimated delivery will be on the second working day.

**On all orders over £25

Sustainability Commitment

Our planet

The environment, our commitment from source.


Optimum protection. The La Roche-Posay spring water is over 1700 years old. It is protected from any types of pollution after it reaches the surface until it is used for spa therapy purposes.


More recycling. We favour use do recycled raw materials and easily recycled packaging.

Fewer materials. We use cardboard packaging tailored to size to avoid bulky secondary packaging, sourced from 100% sustainably managed forests (FSC - Forest Stewardship Council - certified cardboard).


An ambitious agenda. 100% ISO 14001 certified plants committed to ambitious objectives in the areas of waste management, water saving and reduced CO2 emissions (more than 50% by 2015, compared to 2005).

Renewable energies. 1000 tons of CO2 emissions avoided each year thanks to our geothermal program.


Bought this a month ago and it has definitely been one of the best serums I have ever bought. Excellent quality at very reasonable price. Immediately melts into the skin to bring instant hydration and relief to my extremely dry and sensitive skin. Unlike other hydrating products, it doesn't leave the skin even remotely greasy after application. It's as light as droplets of water but with hydration that really lasts.


Intense 24 hour hydration. Skin looks smoothed, softer and more radiant.

Our Brand

Our Brand
For 30 years, we’ve been working in partnership with dermatologists to bring the most efficacious yet highly tolerated products to those with sensitive skin. Whatever your skin concern and whatever your stage in life, La Roche-Posay has a solution – even for those with the most delicate and reactive of skin.

How To

Learn how to use

Apply daily, morning and evening to your whole face under your usual moisturiser. Tolerance tested on sensitive skin. Avoid the eye contour area.


Customer Reviews

Rated 5 out of 5 by from A-M-A-Z-I-N-G This product is absolutely amazing! Had so many skin problems, such as redness, dull and tired complexion, huge discomfort, and obvious allergic reaction, especially after experimenting with so-called natural products such as Neals Yard Remedies and its Frankensence range. Hydraphase Intense Serum calmed my face down within days. Now I use it twice a day: in the morning under the make-up together with Nutric Intense Riche cream and in the evening, often on its own, just adding eye cream under my eyes. What is also very important to me, both products' packages are made of glass. I highly recommend this product.
Date published: 2017-10-13
Rated 4 out of 5 by from Skin Boost I was a little sceptical about this product because I've used serums before and I didn't feel they did anything to improve my skin. I have super dry and sensitive skin and to be honest I wasn't wowed when I first started using this product. I didn't really feel like it did anything, it sinks in to the skin very fast as you apply it and almost feels like you haven't put anything on but after my second week of using it I have noticed my skin is less dry and I am able to wear foundations without the dreaded flaky dry skin on my forehead which is an achievement for me. I think over time you definitely see the results of using this serum.
Date published: 2016-02-05
Rated 5 out of 5 by from Lovely serum This serum was lovely to use, it was really light weight and absorbed into the skin really easily, meaning my skin wasn't left feeling greasy. I found it really hydrated my skin, plumping out some very small wrinkles I get when my skin is on the dehydrated side. I have very sensitive skin on the whole so it was nice to find something so lightweight and friendly to my skin whilst also moisturising. (I tend to find most moisturisers cause my pours to clog up and skin to break out!) Overall this was another fantastic product from La Roche Posay - this brand is just my favourite for really effective skin care!
Date published: 2016-02-27
Rated 5 out of 5 by from Lovely if you suffer from dry skin Don't let the price of this product put you off, you only need to use a small amount as it spreads nicely so the bottle should last a good couple of months, and the best bit is it actually works! I've only been using it a couple of weeks every morning and my skin is smooth, clear and fresh feeling and lasts all day. I noticed the difference from using this serum after a couple of days and so did all my family and friends. I actually love this product and highly recommend it, as I usually have dry horrible skin but now it feels amazing. It's smells nice, isn't oily, and just leaves your face feeling light and fresh all day long. I have already recommended this product to a few people too!
Date published: 2016-02-24
Rated 2 out of 5 by from Not hydrating I bought this in store around 8 weeks ago and have now used up the bottle, I bought this after running out of my usual serum which is the clarins double serum which is a lot more expensive. I wasn’t expecting it to be the same thing but I have to say I was so disappointed with this. I have dry/dehydrated skin and this made absolutely no difference to my skin. so much so that I may as well not have used it at all. It’s light and sinks into the skin well but that’s about it. My skin felt tight and dry even with my usual moisturiser over the top which I’ve used for years. do not waste your money, better to spend a bit more and get a product that gives results. I’ve used this day and night for over 2 months and my skin is worse than before, dry, flaky and dull.
Date published: 2018-10-05
Rated 4 out of 5 by from Little bottle of joy I love this product. It’s done a great job keeping my face hydrated during winter. The product states you can use it twice a day, when you wake up and before you go to bed. I only used it in the morning and found it worked great- goodbye flaky skin! It has the texture of a watery gel, it’s slightly cooling on the face when first applied and can have a bit of a shine, but it’s quickly absorbed and unnoticeable. There’s no smell to the gel and I didn't find it blocking my pores, which is great and perfect for those with greasy and/or sensitive skin. The bottle itself is heavy, but you shouldn't need to carry it around (one application does the trick). I would recommend this product despite it being fairly steep in price.
Date published: 2016-02-27
Rated 2 out of 5 by from Not for me I didn't like this product as much as I expected to unfortunately. The consistency is like a thin gel, which dries too quickly before I've applied it to my whole face. I also don't like the faint alcohol-gel smell as you initially put it on your face. I haven't noticed much of a difference on my face personally, although obviously different products act differently on different skin, so it may work wonders on someone else. Not for me I'm afraid.
Date published: 2016-02-14
Rated 1 out of 5 by from Seemed good at first I used this for a few days with no problems, however on around the fourth day I noticed that the dry skin on my forehead had gotten worse and my chin had gotten dry and flaky as well which I've never had before. I tried concentrating the serum on these areas as it's supposed to hydrate the skin so I thought it must be something else causing the dryness but it made it worse. I'm very disappointed as I'd heard great things about the brand!
Date published: 2016-02-18
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