++++
[ DemythSkin Verdict ]

La Roche-Posay Effaclar Duo(+) SPF 30
SunscreenSun Protection
Efficacy
Strong
4.1 / 5.0
Safety
Caution
3.7 / 5.0
System Verdict
This is an efficient acne-friendly day sunscreen-moisturizer, but the high alcohol and fragrance make it a risky choice for sensitive or compromised barriers. Efficacy sits in the solid-but-not-elite range: you get S Tier anti-acne/exfoliation actives (salicylic acid + capryloyl salicylic acid, zinc PCA, niacinamide) and full UVB/UVA coverage from a multi-filter system, but likely modest acid percentages and a basic chemical filter combo rather than cutting-edge, photostable filters keep it around a 4.1 instead of true high-performance territory. The base is designed for oily/acne-prone skin (silica, lightweight esters, film-formers) and supports pore care and mark prevention (Procerad, carnosine), yet the reliance on alcohol denat. high in the INCI and added fragrance pushes safety down: good for robust oily skin, much less ideal for dryness, rosacea, or barrier damage.
Active Ingredients Detected
S Tier: Gold StandardsHigh Clinical Proof | Skin-Transformative
Salicylic Acid
A Tier: Good BasicsProven Results
Aqua / WaterGlycerinHomosalateEthylhexyl SalicylateNiacinamideButyl MethoxydibenzoylmethaneDimethiconeDimethicone/Vinyl Dimethicone CrosspolymerCapryloyl Salicylic Acid (LHA)
B Tier: Supporting IngredientsPromising Ingredients
OctocryleneSorbitan StearateSilicaIsopropyl Lauroyl SarcosinateStyrene/Acrylates CopolymerPropylene GlycolPotassium Cetyl PhosphateDiisopropyl SebacatePEG-20PEG-8 LaurateZinc PCA2-Oleamido-1,3-Octadecanediol (Procerad)Inulin Lauryl CarbamateCarnosinePoloxamer 338Ammonium Polyacryloyldimethyl TaurateDisodium EDTASucrose CocoateXanthan GumBHT
D Tier: Potential IrritantsBe Cautious
Alcohol Denat.t-Butyl AlcoholParfum / 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.