Hyalu B5

Hyalu B5 Hyaluronic Acid Serum

Hyalu B5 Hyaluronic Acid Serum is rated 4.5 out of 5 by 90.
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30 ml
An intensely hydrating serum that is clinically proven to re-plump and repair skin in only 1 day



An intensely hydrating serum that is clinically proven to re-plump skin and accelerate skin repair


Specifically formulated for de-hydrated skin that is showing signs of aging - loss of volume and skin elasticity with fine lines or wrinkles.

  • Skin immediately recovers bounce, suppleness and a fresh complexion
  • After 4 hours, elasticity & firmness are improved by 24% and skin is 70% more hydrated
  • After a month of use, 87% had more elastic and even skin and 71% agreed their wrinkles looked reduced


Hyaluronic acid effectively plumps the skin and in doing so, reduces the appearance of fine lines and wrinkles, as well as improving skin hydration and texture. This formula contains two different sized molecules of Hyaluronic Acid. The larger molecule works on the surface of the skin to reduce wrinkles and re-plump the skin. The smaller molecule is able to penetrate more deeply into the skin to increase skin volume.

Vitamin B5 helps improve the skin's natural repairing process and helps stimulate repair of damaged skin.

Madecassoside accelerate helps stimulate collagen synthesis which gives skin its firm and elastic quality.


Hyalu B5 has been through rigorous dermatological testing to ensure it is suitable for even the most sensitive skin.

9/10 dermatologists would recommend La Roche-Posay for sensitive skin.*

Recommended for use as part of the optimum anti-aging regime as agreed by our top UK dermatologists.


This minimalist formula contains no parabens or colourants and its formula has been through stringent allergy testing.

*Survey of 249 dermatologists at the British Association of Dermatologist’s conference, July 2015. Survey conducted by La Roche-Posay

Free Shipping & Returns

on all orders over £50

Free Product Samples

3 included with this purchase

  • 609905 19
  • (CODE F.I.L. : B212343/1)
  • Please check back of pack for up to date ingredients

Free UK standard delivery on all orders

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.

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.



Skin immediately recovers bounce, suppleness and a fresh complexion.

After 4 hours, elasticity & firmness are improved by 24% and skin is 70% more hydrated.

After a month of use, 87% had more elastic and even skin and 71% agreed their wrinkles looked reduced.

How To

Learn how to use


Against pollution and free-radicals with Vitamin C. Apply post cleansing and pre-moisturising.

We recommend



Against UVA/UVB and infrared rays with a broad-spectrum sunscreen. Apply post-moisturising.

We recommend


03.Re-plump & repair

Hydrate, plump and accelerate skin repair with Hyaluronic Acid. Use as serum pre-moisturising at night.

We recommend 1-2 drops of


04.Repair & Re-generate

Accelerate skin-cell turnover, reduce appearance of wrinkles and improve skin uniformity with Retinol. Use as a moisturiser at night time only.

We recommend



Customer Reviews

Rated 4 out of 5 by from Great serum I've only started using this for one week and I can always notice that my skin feels more supple and just has that bounce to it. The serum smells lovely, it is quick rich so I would say a little goes a long way. I only use this at night time as I rather have something a little more richer and moisturising at night. It can get a little sticky but I let it sink into my skin with a face roller, the stickiness soon disappears. My fine line are reduced a little not a lot but I have only been using this for one week. I was concerned as I have combination skin but it didn't leave my t zone oily at all. Overall I really liked this product.
Date published: 2018-01-24
Rated 5 out of 5 by from Highly effective serum!!! I absolutely love this serum. My skin is quite sensitive with a tendency to be dry. Being in my early fifties, I'm also fighting the signs of ageing. Hylalu B5 really did plump up my skin, lessening the look of wrinkles. My complexion was brighter, the tone and elasticity greatly improved and it felt more hydrated. I also used it on the back of my hands with the same results. It's quite sticky initially when applying but smoothes into the skin within a few minutes. I like the fact it has a dropper as you can control the amount you use, unlike a tube where sometimes too much can be squirted out. I'll definitely keep using it.
Date published: 2018-01-01
Rated 5 out of 5 by from Fantastic for Extremely Dry Skin I received this product to test. It smells lovely and although rather thick, it goes on and is absorbed easily. After applying 2 drops, my skin was left with a lovely matt finish, pores appeared slightly reduced and fine lines temporarily plumped. Make up was easy to apply afterwards. After a month of continued use I did not experience a huge change to my 49 year old, combination skin. HOWEVER, my husband has extremely dry, irritated and red skin around his eyes. After only 2 days of using this product there was a huge difference for him. The redness and irritation had reduced considerably. He will certainly continue to use this product.
Date published: 2018-01-28
Rated 5 out of 5 by from Fabulous Serum! This product arrived the day before I was due to go on a very long flight. I left my usual serum at home and took the Hyalu B5 serum on my travels. I used this product morning and evening on my face and neck. The product is quite viscous but not at all sticky and sinks into the skin quite quickly. I'm extremely happy with the serum and found it really hydrates the skin. I'm 63 and found it really does plump up the finer lines on the face. My neck had some rough patches where I have some "age spots". The skin on my neck now feels much softer and the rough areas have gone. I would definitely repurchase this serum once this bottle has finished. I like the dropper as you can control the amount you use.
Date published: 2017-12-27
Rated 5 out of 5 by from Can’t Believe The Difference! I felt I just had to write this review because this is such a lovely product. I’ve only been using for a few days but my skin looks and feels hydrated, soft and glowing. In fact I’ve already had comments from friends who say my skin looks amazing and you can’t ask for more than that when you’re approaching 73! Yes, the oil is quite thick, but when you have dehydrated skin, it’s like manna from heaven and maybe the people who are complaining are perhaps using too much? The dropper is a brilliant innovation too. I use the oil at night, followed by Redermic R Day (which is inappropriately named as it’s actually recommended by LRP as a night cream!) I absolutely recommend this oil to anybody with dry/dehydrated or older skin and have already ordered a second bottle to keep in the cupboard. Well done LRP on another great product.
Date published: 2018-02-14
Rated 5 out of 5 by from Part of my daily routine now I haven't used a serum for years, usually because of the high cost of these products and the time adding an extra product each day. But having fallen in love with the brand, I was excited to try this serum. It's been about 3 weeks now and I'm using twice a day before moisturising. It's early days so hard to see any huge difference in my lines so far, but there is definitely an improvement in skin texture. It leaves skin feeling really soft and I will certainly continue to use it as part of my daily routine. I put serum from the dropper onto my hand to apply as it can pour too much out otherwise - it only takes a couple of drops to cover the whole face. It'll last for ages this way.
Date published: 2018-01-10
Rated 3 out of 5 by from Smooth Skin I received this product a few weeks ago and since I have been using it I must say it makes my skin feel so smooth. I have acne prone skin and I am a shift worker so my skin needs TLC. I don’t think I have had enough time to test the product so I will continue to use it but I do believe it hasn’t tightened my skin and it feels a lot smoother. I will rewrite a update review once I have used this for more than one month. I haven’t seen the product help in terms of wrinkles and anti ageing as yet. The product it self is smooth and it is easy to use as it is a serum it does not make the skin feel oily.
Date published: 2017-12-27
Rated 4 out of 5 by from Hydration in a bottle First of all to describe my skin before I started with Hyalo B5 Hyaloronic Acid Serum: Very dry patches and acne-prone skin. I started around 2 weeks ago with twice a day of this Serum, after the first day my skin got really soft :) I found having my day cream on top of the Serum made applying make up even smoother. Throughout the day I felt my skin stayed hydrated, no more dry, flaky patches during mid day anymore, although I reduced applying the Serum to evenings. As for the fine lines, especially around the eyes, I feel they got less. For only two week it’s been quite a lot, and very important too: no additional break outs! I gave it only four stars as it’s been only two weeks. Who knows what it can do after 2 months! :)
Date published: 2017-12-27
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