
About this product
A niacinamide serum containing 10% niacinamide and phenylethyl resorcinol, designed to brighten skin tone and reduce hyperpigmentation and dark spots.
Full ingredients
Aqua/Water/Eau, Niacinamide, Glycerin, Alcohol Denat, Hydroxyethylpiperazine Ethane Sulfonic Acid, Dimethicone, Isopropyl Lauroyl Sarcosinate, Octyldodecanol, PEG-20 Methyl Glucose Sesquistearate, Tin Oxide, Sorbitan Oleate, Dimethiconol, Cetearyl Ethylhexanoate, Isohexadecane, Sodium Hyaluronate, Phenylethyl Resorcinol, Poloxamer 338, Ammonium Polyacryloyldimethyl Taurate, Disodium EDTA, Isopropyl Myristate, Citric Acid, Xanthan Gum, Polysorbate 80, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Tocopherol, Phenoxyethanol, Mica, Ci 77891/Titanium Dioxide, Parfum/Fragrance
Guru Score
Mixed
4 experts · Moderate agreementWhat they liked
What they flagged
What the gurus are saying
The fragrance is a dealbreaker for some: dermatologists have described it as 'headache inducing' and 'very heavy,' which reviewers note can cause pilling when layered under sunscreen. Others find the visible brightening benefits worth tolerating, the 10% niacinamide paired with phenylethyl resorcinol reduces hyperpigmentation and dark spots, leaving skin more even-toned, though the higher concentration may irritate those sensitive to niacinamide.
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.
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
Sun protection is the best evidenced way to slow visible ageing, and the filters are what does the work. Mineral and chemical filters both protect when a product is applied thickly enough and often enough, which is where most people fall short rather than on the choice of filter.
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 niacinamide serum containing 10% niacinamide and phenylethyl resorcinol, designed to brighten skin tone and reduce hyperpigmentation and dark spots.
The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 71%.
La Roche-Posay Pure Niacinamide 10 Serum holds a Guru Score of 71%. That is our read on how warmly the experts talk about it, based on the verdicts of 4 expert reviewers we have collected.
La Roche-Posay Pure Niacinamide 10 Serum is generally suited to oily skin, combination skin and acne-prone skin.
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