EFFACLAR K+
The La Roche-Posay EFFACLAR K+ is a moisturizer. Our analysis of its 24 ingredients (21 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The La Roche-Posay EFFACLAR K+ is a moisturizer. Our analysis of its 24 ingredients (21 low-risk) rates it Excellent (98/100). Based on its ingredients, it looks well-suited to oily / acne-prone skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Water
(Solvent) |
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Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
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Octyldodecanol
(Fragrance, Skin Conditioning, Emollient, Perfuming, Solvent) |
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
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PEG-100 Stearate
(Surfactant) |
Fungal Acne Trigger
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Glyceryl Stearate
(Emollient, Emulsifying) |
Fungal Acne Trigger
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Salicylic Acid
(Antiacne Agent, Antidandruff Agent, Corn/Callus/Wart Remover, Denaturant, Exfoliant, Fragrance, Hair Conditioning, Skin Conditioning, Keratolytic, Masking, Preservative) |
Good for Oily Skin
Bad for Sensitive Skin
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Ammonium Polyacryloyldimethyl Taurate
(Emulsion Stabilising, Viscosity Increasing Agent, Viscosity Controlling) |
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Zinc PCA
(Skin Conditioning, Humectant) |
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Sarcosine
(Skin Conditioning) |
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Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
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Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Silica Silylate
(Antifoaming Agent, Bulking Agent, Skin Conditioning, Emollient, Suspending Agent Nonsurfactant, Anticaking Agent, Emulsion Stabilising, Viscosity Controlling) |
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Perlite
(Abrasive, Absorbent, Bulking Agent, Suspending Agent Nonsurfactant) |
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Carnosine
(Skin Conditioning) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Capryloyl Salicylic Acid
(Skin Conditioning) |
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Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
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Pentylene Glycol
(Skin Conditioning, Solvent) |
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Acrylates Copolymer
(Adhesive, Artificial Nail Builder, Binding Agent, Film Forming, Hair Fixing, Suspending Agent Nonsurfactant, Antistatic Agent, Binding) |
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Cetyl Alcohol
(Emulsion Stabilising, Fragrance, Opacifying, Emulsifying, Surfactant, Foam Boosting, Viscosity Increasing Agent, Emollient, Masking, Viscosity Controlling) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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PARFUM
(Fragrance, Perfuming) |
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How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
Low-strength topical salicylic acid (BHA) is generally considered fine. Caution is usually reserved for high-strength leave-on products and salicylic peels.
This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.
The concentrations these actives are typically effective at in research — not a measurement of this product.
Salicylic acid is OTC-capped at 2%; 0.5–2% is the usual leave-on range. Much below that it acts more as a soothing agent than an exfoliant.
Salicylic Acid, Capryloyl Salicylic Acid
INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.
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