La Roche-Posay Hyalu B5 Serum.

Serums

About this product

A lightweight hydrating serum formulated with hyaluronic acid to plump the skin and provide lasting hydration.

Full ingredients

Aqua / Water, Glycerin, Alcohol Denat, Propylene Glycol, Panthenol, Pentylene Glycol, Dimethicone, Peg-6 Caprylic/Capric Glycerides, Ppg-6-Decyltetradeceth-30, Glyceryl Isostearate, Madecassoside, Sodium Hyaluronate, Ammonium Polyacryloyldimethyl Taurate, Disodium Edta, Hydrolyzed Hyaluronic Acid, Caprylyl Glycol, Citric Acid, Xanthan Gum, Butylene Glycol, Tocopherol, Phenoxyethanol, Parfum /Fragrance

Guru Score

75%

Yay

Early verdict · Few reviews so far

What they liked

Plumps skin effectively
Strong hydrating power

What they flagged

Contains fragrance, may irritate sensitive skin

What the gurus are saying

The fragrance in this serum can be irritating for those with sensitive skin, but those without sensitivity find it an outstanding hydrator and skin plumper that visibly outperforms many other hyaluronic acid serums. For anyone wanting to avoid fragrance, gurus recommend considering fragrance-free alternatives like Neutrogena Hydro Boost or The Ordinary instead.

Synthesized from 2 expert reviews · most recent take October 2024

Best for

Dry skin

Type

SerumsDrops & dropper

Key actives

Hyaluronic acidVitamin E

Formula notes

Contains fragranceContains drying alcohol

Where to buy

Ulta → Amazon → Google →

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What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

Dr. Daniel Sugai

722k subs

✓Yay

"It's a great hydrator, it's a great plumper. I think it plumps my skin better than the Vichy Minéral 89."

Dr Dray

2.69M subs

✓Mixed

"This is La Roche-Posay's hyaluronic acid serum and it does have fragrance in it, which can be irritating. [...] If you are sensitive, I would suggest not using this. Instead, there are other hyaluronic acid serums that are free of fragrance like the Neutrogena Hydro Boost [...] fragrance-free hyaluronic acid serum, [...] the Vichy hyaluronic acid serum, [...] and The Ordinary has hyaluronic acid too."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Vitamin E

Vitamin E is an antioxidant, and it is often in a formula to keep the other ingredients stable rather than as the active itself. It pairs well with vitamin C, though on its own the evidence for visible change is limited.

Source: NIH, National Library of Medicine

Frequently asked.

What is La Roche-Posay Hyalu B5 Serum?

A lightweight hydrating serum formulated with hyaluronic acid to plump the skin and provide lasting hydration.

Is La Roche-Posay Hyalu B5 Serum worth it?

Mostly yes. 1 of the 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 75%.

What is La Roche-Posay Hyalu B5 Serum's Guru Score?

La Roche-Posay Hyalu B5 Serum holds a Guru Score of 75%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.