++++
[ DemythSkin Verdict ]

La Roche-Posay Effaclar K+
MoisturizerAcne / Oil Control
Efficacy
Solid
3.8 / 5.0
Safety
Mostly Safe
4.1 / 5.0
System Verdict
Good acne-control moisturizer, but not a standout treatment and the fragrance drags down the formula. The efficacy score is held to a moderate level because the formula does include meaningful acne-supporting ingredients like salicylic acid, capryloyl salicylic acid, zinc PCA, and sarcosine in a real leave-on base, but the exfoliating acids are not shown at clinically optimized percentages or pH, and the antioxidant support is modest rather than high-impact. It also leans more toward mattifying texture management than barrier repair, so it performs its oily-skin job reasonably well without becoming a top-tier anti-acne formula; the added fragrance lowers both the safety score and the practical value.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Salicylic Acid
A Tier: Good BasicsProven Results
Aqua/WaterDimethiconeCapryloyl Salicylic AcidTocopherol
B Tier: Supporting IngredientsPromising Ingredients
Propylene GlycolOctyldodecanolPEG-100 StearateGlyceryl StearateAmmonium Polyacryloyldimethyl TaurateZinc PCASarcosineSodium HydroxideSilicaSilica SilylatePerliteCarnosineDisodium EDTAXanthan GumPentylene GlycolAcrylates CopolymerCetyl AlcoholButylene Glycol
D Tier: Potential IrritantsBe Cautious
Parfum/Fragrance
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DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.