La Roche Posay Hyaluronic Acid Serum, Hyalu B5 Face Serum - Travel Size - 1.01 fl oz
$39.99
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4.5 out of 5 stars with 4859 ratings
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4.7 out of 5 stars with 6952 ratings
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The La Roche-Posay Hyalu B5 Serum is a highly effective skincare product that delivers intense hydration and improves skin texture. Guests appreciate its lightweight formula, quick absorption, and the inclusion of hyaluronic acid and vitamin B5, which help plump and soothe the skin. While some guests noted a strong fragrance, many found it suitable for sensitive skin and praised its ability to alleviate dryness and enhance radiance. This serum has become a staple in many skincare routines.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.5 out of 5 stars with 3031 reviews
Hydrates Skin: 4.47 out of 5
Moisturizing: 4.37 out of 5
Accurate Scent: 3.53 out of 5
Anti-aging: 4.04 out of 5
66% would recommend
195 recommendations
5 out of 5 stars
14 February, 2026Verified purchase
(no review title)
Very hydrating!
5 out of 5 stars
31 January, 2026
originally posted on laroche-posay.us
Hydration serum
Excellent product you xan feel the difference in your skins moisture immediately.
3 out of 5 stars
Thumbs down graphic, would not recommend
30 January, 2026
Scent is terrible
It doesn’t work any better than “The Ordinary” hyaluronic acid that costs a fraction of the price. And the scent is too strong, I don’t even want to use it.
1 reply from La Roche-Posay Product Expert team - 17 days ago
Hi PMM. Thank you for reaching out to La Roche Posay. We are sorry to hear about the experience you had with the Hyaluron B5 Acid Face Serum. We would like to speak with you directly about it. Please give us a call at 800-560-1803, M- F, 9am - 5:30pm, ET and let us know you contacted us through a review. It would be helpful if you could have the product available when you call, as well as providing the agent with your username. Looking forward to speaking with you.
5 out of 5 stars
Thumbs up graphic, would recommend
29 January, 2026Verified purchase
(no review title)
I love this product! My face looks brighter, hydrated, and less lines on my forehead!
5 out of 5 stars
Thumbs up graphic, would recommend
28 January, 2026Verified purchase
(no review title)
Easy to use and like the feel and no need for other lotions.
5 out of 5 stars
28 January, 2026
originally posted on laroche-posay.us
Love!
Love this product! It goes on light and effortless. It does not feel sticky, and has a very very light barely-there scent. It just feels clean. My whole face is smoother and softer.
5 out of 5 stars
Thumbs up graphic, would recommend
28 January, 2026Verified purchase
Staple
Very hydrating, no irritation to my very sensitive skin, light weight, and the light clean smell is amazing.
5 out of 5 stars
27 January, 2026Verified purchase
Feels nice
This serum feels great on the skin. Makes my skin very soft and adds a bit of extra hydration under my moisturizer. This product also has a nice consistency and doesn’t pill or mess up products that go on top.
5 out of 5 stars
24 January, 2026
originally posted on laroche-posay.us
Hyaluronic Acid
Absolutely love it. It doesn’t irritate my skin at all. Nice feeling after applying. I’ve tried other brands nothing is better than this.
1 out of 5 stars
23 January, 2026
originally posted on laroche-posay.us
Terrible
The new formula is subpar to the last formula which I loved. This one makes my face look and feel dull, listless, itchy and sticky. I wish I would have known they changed the formula, it's terrible and a waste of money.
1 reply from Consumer Care Center team - 11 days ago
Hello Bini! We are very sorry to hear about your experience with our Hyalu B5 Pure Hyaluronic Acid Serum. We would like to speak to you directly about this. Please contact us at 800-560-1803 M-F 9:00 am – 7:00 pm ET for assistance and provide the reference #44950228. We look forward to speaking with you!
5 out of 5 stars
20 January, 2026
originally posted on laroche-posay.us
A Must Have
I absolutely love this product! It keeps my skin feeling so soft and smooth like it's never been before. I always have this in my serum rotation.
5 out of 5 stars
15 January, 2026
originally posted on laroche-posay.us
Great!
I have been using the Hyalu B5 Serum for a couple of years now. Many reviews say it is sticky, but I find if I slightly moisten my fingertips and then apply, it goes on smoothly and absorbs into skin rapidly. I have no need for an additional moisturizer. Scent is strong as many complain, but only for a minute. I am allergie and sensitive to many chemicals found in skincare products so this one is my holy grail. Love this stuff!!
1 out of 5 stars
14 January, 2026
originally posted on laroche-posay.us
Disappointed in the strong scent
Great product but I will not be buying again due to the scent.
1 reply from Consumer Care Center team - 15 days ago
Hello Clionah! It is wonderful to hear that the serum delivered the results you were looking for, though we sincerely regret that the fragrance prevented it from being a perfect match for your routine. We carefully craft our scents to ensure they meet our strict safety standards for sensitive skin, but we completely understand that sensory preference is a very personal part of any skincare experience. To help manage the presence of a scent, you might find that applying the serum to slightly damp skin and immediately following with a fragrance-free moisturizer helps to lock in the formula and allows the aroma to dissipate more quickly. Your feedback is incredibly important to us as we continue to develop products that prioritize both high efficacy and the diverse needs of our community.
3 out of 5 stars
13 January, 2026
originally posted on laroche-posay.us
Hydrating but very scented
Hydrates skin but wish there was a non fragranced version. Despite being allergy tested, I don’t think this is a great fit for very sensitive types unfortunately. Would rebuy only if they ever came out with a fragrance free version.
1 reply from Consumer Care Center team - 15 days ago
Hello Kitkat7! We truly appreciate you sharing your experience with the Hyalu B5 Serum and are glad to hear it provided the hydration your skin needed. We understand that even with rigorous allergy testing, fragrance can be a personal preference or a concern for those with particularly reactive skin. Your feedback regarding a fragrance-free version is incredibly valuable as we are constantly looking for ways to better serve our community of sensitive skin users. For those experiencing heightened sensitivity, it can be very helpful to perform a small patch test on the inner forearm for 24 hours before full facial application to monitor how your skin responds to the formula. Additionally, ensuring your skin is slightly damp before application can help the hyaluronic acid lock in moisture more effectively while minimizing the potential for irritation. Thank you for choosing us for your skincare journey and for providing this honest insight.
5 out of 5 stars
13 January, 2026
originally posted on laroche-posay.us
HA B5 serum
I love this stuff it keeps my face so hydrated and has improved the dryness exceptionally.
5 out of 5 stars
12 January, 2026
originally posted on laroche-posay.us
Hyalu B5 a must in your moisturizing routine
This is a keeper! I layer it over a serum and under a moisturizer. My face retains moisture throughout the day.
5 out of 5 stars
12 January, 2026
originally posted on laroche-posay.us
Redness Reduced
Reduced my chronic redness within 3 wis of using nightly.
1 out of 5 stars
11 January, 2026
originally posted on laroche-posay.us
Sticky
It feels sticky, I don’t know why. I use different products from this brand but do not like this one.
1 reply from Consumer Care Center team - 18 days ago
Hello bsky! We appreciate your honesty and are sorry to hear that the texture of the Hyalu B5 Serum was not to your liking, especially as a fan of our other products. The "sticky" sensation you described is actually a common characteristic of high-concentration hyaluronic acid as it begins to bond with moisture and "plump" the skin's surface. To minimize this tackiness, we suggest applying the serum to slightly damp skin and using only two to three drops for your entire face. Gently pressing the product into the skin with your palms and allowing it to absorb for about sixty seconds before applying your moisturizer will help the formula set more comfortably. We value your feedback as a loyal consumer, as it helps us understand the diverse texture preferences within our community.
5 out of 5 stars
Thumbs up graphic, would recommend
10 January, 2026Verified purchase
Lovely floral smell and hydrates
Day 2 of using the product and I just love it. It is a thicker serum that definitely hydrates without feeling sticky, It has a light floral smell that is just lovely.
2 out of 5 stars
9 January, 2026
originally posted on laroche-posay.us
Issues with Absorption and Layering
I found that this product did not really absorb into my skin. I attempted to use it during both my morning and evening routines, but I encountered significant issues during the day. Because the serum is very thick and sticky, I am unable to apply any additional products over it, such as sunscreen or moisturizer. I tried using different tools and various product combinations to see if it would make a difference, but nothing could be layered on top of this serum without issues. Due to the texture, I have been forced to use it only at night.
1 reply from Consumer Care Center team - 18 days ago
Hi SKIM! We are sorry to hear that the texture of the Hyalu B5 Pure Hyaluronic Acid Serum has made it difficult to integrate into your daytime routine. This serum is formulated with a high concentration of two types of pure hyaluronic acid, which creates its signature "plumping" and moisture-binding effect, resulting in a richer, slightly more viscous consistency than traditional watery serums. To help the serum absorb more effectively and reduce any sticky sensation during the day, we suggest applying just two to three drops to thoroughly cleansed, slightly damp skin. Using a gentle pressing motion with your palms—rather than rubbing—allows the formula to integrate more seamlessly with your skin's surface. Waiting a full sixty seconds after application before moving on to your moisturizer or sunscreen can also help the product "set," which typically prevents any pilling or layering issues. We appreciate your persistence in trying different combinations, and we are glad it is at least providing nighttime benefits for you!