A retinol serum from La Roche-Posay combining retinol and niacinamide with thermal spring water, formulated to support cell turnover and reduce fine lines while strengthening the skin barrier.
Aqua/Water, Glycerin, Cyclohexasiloxane, Alcohol Denat, Pentylene Glycol, Niacinamide, Dimethicone, Glycine Soja Oil / Soybean Oil, PPG-6-Decyltetradeceth-30, Sodium Hyaluronate, Retinol, Adenosine, Ammonium Polyacryloyldimethyl Taurate, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Polysilicone-11, Retinyl Palmitate, Tocopherol, Phenoxyethanol, Parfum/Fragrance
Guru Score
The Guru Score: every expert's verdict on a product, in one simple number.
Under the score you'll see how many experts weighed in, or "Early verdict" while only a few have. Paid takes count for half in the score.
Guru Certified means at least 6 experts, a score of 85% or more, and almost no Nays.
How we score →Mixed
8 experts · Strong agreementWhat the gurus are saying
The retinol works well for rosacea and sensitive skin thanks to niacinamide and soothing thermal minerals, but fragrance and drying alcohol are real sticking points. Some gurus praise the formulation as thoughtful and well-researched, while others found it irritating and skip it entirely in favor of fragrance-free retinols. Those with a robust barrier and no fragrance sensitivity may want to patch-test first; anyone prone to stinging or already dealing with irritation should probably look elsewhere.
What they liked
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Best for
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Key actives
Formula notes
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
Retinoids are among the best studied ingredients in dermatology, with solid evidence for acne and for the fine lines and rough texture that come from sun exposure. Dryness and flaking in the first few weeks are common and usually settle.
Source: DermNet
Niacinamide has evidence behind it for redness, uneven tone and supporting the skin barrier, and it is usually well tolerated even by skin that reacts to most things.
Source: DermNet
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
A retinol serum from La Roche-Posay combining retinol and niacinamide with thermal spring water, formulated to support cell turnover and reduce fine lines while strengthening the skin barrier.
The gurus are split. 5 of the 8 gurus give it their stamp of approval while 2 would skip it, which lands it in the middle at a Guru Score of 60%.
La Roche-Posay Retinol B3 Serum holds a Guru Score of 60%. That is our read on how warmly the experts talk about it, based on the verdicts of 8 expert reviewers we have collected.
La Roche-Posay Retinol B3 Serum is generally suited to mature skin.
Lower-priced retinoids the gurus still rate highly, versus this mid-range pick.
See how they stack up →Other products the same gurus have weighed in on, plus more from this brand and category.
Compare side by side →Stories where our editors dug into this product or its brand.
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