La Roche-Posay Retinol B3 Pure Retinol Serum — Efficacy 4.1/5.0, Safety 3.6/5.0 | DemythSkin
++++
[ DemythSkin Verdict ]
La Roche-Posay Retinol B3 Pure Retinol Serum
La Roche-Posay

La Roche-Posay Retinol B3 Pure Retinol Serum

SerumAnti-Aging
Efficacy
Strong
4.1 / 5.0
Safety
Caution
3.6 / 5.0
System Verdict
This is a competent retinol serum, but the alcohol and fragrance keep it from being truly elegant. The efficacy score is driven mainly by retinol in a meaningful position, with niacinamide, glycerin, sodium hyaluronate, and adenosine adding real support for barrier comfort and anti-aging; it loses points because retinyl palmitate is a weaker retinoid support ingredient, and the presence of denatured alcohol plus fragrance makes the formula less forgiving for sensitive skin.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Retinol
A Tier: Good BasicsProven Results
GlycerinNiacinamideGlycine Soja Oil/Soybean OilSodium HyaluronateAdenosineTocopherol
B Tier: Supporting IngredientsPromising Ingredients
PPG-6-Decyltetradeceth-30Ammonium Polyacryloyldimethyl TaurateTrisodium Ethylenediamine DisuccinatePolysilicone-11Retinyl Palmitate
D Tier: Potential IrritantsBe Cautious
Alcohol Denat.Parfum/Fragrance
What Each Ingredient Does
Aqua/Water
solvent base
Glycerin
humectant
Cyclohexasiloxane
silicone emollient
Alcohol Denat.
solvent, quick-dry base
Pentylene Glycol
humectant, solvent
Niacinamide
barrier-supporting active
Dimethicone
protective silicone
Glycine Soja Oil/Soybean Oil
emollient oil
PPG-6-Decyltetradeceth-30
solubilizer, emulsifier
Sodium Hyaluronate
water-binding humectant
Retinol
primary anti-aging active
Adenosine
supportive anti-aging active
Ammonium Polyacryloyldimethyl Taurate
thickener, stabilizer
Caprylyl Glycol
humectant, preservative aid
Citric Acid
pH adjuster
Trisodium Ethylenediamine Disuccinate
chelating agent
Xanthan Gum
thickener, stabilizer
Polysilicone-11
texture enhancer
Retinyl Palmitate
retinoid support ingredient
Tocopherol
antioxidant
Phenoxyethanol
preservative
Parfum/Fragrance
fragrance
Full Ingredient List (INCI)

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

Frequently Asked

Is La Roche-Posay Retinol B3 Pure Retinol Serum worth it?

La Roche-Posay Retinol B3 Pure Retinol Serum scores 4.1 out of 5.0 for efficacy (Strong) and 3.6 out of 5.0 for safety (Caution) on DemythSkin's independent ingredient analysis. This is a competent retinol serum, but the alcohol and fragrance keep it from being truly elegant. The efficacy score is driven mainly by retinol in a meaningful position, with niacinamide, glycerin, sodium hyaluronate,

What are the key active ingredients in La Roche-Posay Retinol B3 Pure Retinol Serum?

La Roche-Posay Retinol B3 Pure Retinol Serum contains these gold-standard actives with strong clinical evidence: Retinol.

Does La Roche-Posay Retinol B3 Pure Retinol Serum contain fragrance or known irritants?

DemythSkin flags these ingredients in La Roche-Posay Retinol B3 Pure Retinol Serum as potential irritants: Alcohol Denat., Parfum/Fragrance. This product does contain fragrance.

How is La Roche-Posay Retinol B3 Pure Retinol Serum scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin

Analysis last updated: 2026-08-16. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.