A retinol serum from La Roche-Posay that pairs retinol with niacinamide (vitamin B3) and the brand's thermal spring water, designed to target fine lines and uneven texture while supporting 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
Does a retinol with niacinamide and thermal spring water really stay gentle? The split is real: fans point to that soothing pairing for sensitive, rosacea-prone skin, plus the L'Oreal research behind the formula. Critics found drying alcohol and a lot of fragrance, and some felt stinging or irritation, which matters if your skin is easily upset. Fans use it at night, patting on just a little.
What they liked
What they flagged
Best for
Type
Key actives
Formula notes
The concerns the experts tie this product to, in their own words. Paid and founder takes don't count.
“So, great for those with rosacea because it has the niacinamide in it, and it has barrier support from the thermal spring water.”
Dr. Daniel Sugai, watch at 4:55
“So, great for those with rosacea because it has the niacinamide in it, and it has barrier support from the thermal spring water.”
Dr. Daniel Sugai, watch at 4:55
“niacinamide is anti-inflammatory so it can be soothing but also we found is skin brightening so and also it can help regulate seab bump production or oil production in people who have oilier skin”
Dr. Daniel Sugai, watch at 17:34
“La Roche-Posay Retinol B3 Serum contains a milder form of retinol along with niacinamide which soothes the skin and minimizes irritation.”
Dr. Aleksandra Brown, watch at 9:50
“The key ingredient here is the pure retinol, it's a vitamin A derivative that promotes surface cell turnover, reduces fine lines, improves the skin texture.”
Dr. Aleksandra Brown, watch at 16:19
“The key ingredient here is the pure retinol, it's a vitamin A derivative that promotes surface cell turnover, reduces fine lines, improves the skin texture.”
Dr. Aleksandra Brown, watch at 16:19
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 that pairs retinol with niacinamide (vitamin B3) and the brand's thermal spring water, designed to target fine lines and uneven texture while supporting 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.
In their reviews, experts say La Roche-Posay Retinol B3 Serum is good for rosacea (2 experts), skin barrier support (2 experts), excess oil and shine (1 expert), redness (1 expert), irritated or reactive skin (1 expert) and rough or uneven texture (1 expert).
2 experts who reviewed La Roche-Posay Retinol B3 Serum say it is. Dr. Daniel Sugai put it this way: “So, great for those with rosacea because it has the niacinamide in it, and it has barrier support from the thermal spring water.”
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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