Effaclar H Iso-Biome Moisturiser
The La Roche-Posay Effaclar H Iso-Biome Moisturiser is a moisturizer. Our analysis of its 25 ingredients (23 low-risk) rates it Excellent (100/100). Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The La Roche-Posay Effaclar H Iso-Biome Moisturiser is a moisturizer. Our analysis of its 25 ingredients (23 low-risk) rates it Excellent (100/100). 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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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
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Squalane
(Emollient, Hair Conditioning, Refatting, Skin Conditioning) |
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
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Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
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Zea Mays Starch
(Abrasive, Absorbent, Anticaking, Skin Protecting, Viscosity Controlling) |
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Ammonium Polyacryloyldimethyl Taurate
(Emulsion Stabilising, Viscosity Increasing Agent, Viscosity Controlling) |
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Myristyl Myristate
(Emollient, Opacifying, Skin Conditioning) |
Bad for Oily Skin
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Bixa Orellana Seed Extract
(Masking, Skin Conditioning) |
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Stearic Acid
(Fragrance, Sufactant, Emulsifying, Surfactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Stearic Acid., Emulsion Stabilising, Masking, Refatting) |
Bad for Oily Skin
Fungal Acne Trigger
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Potassium Cetyl Phosphate
(Emulsifying, Surfactant) |
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Glyceryl Stearate SE
(Emulsifying, Surfactant) |
Bad for Oily Skin
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Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
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Myristic Acid
(Fragrance, Opacifying, Sufactant, Emulsifying, Perfuming) |
Bad for Oily Skin
Fungal Acne Trigger
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2-Oleamido-1,3-Octadecanediol
(Skin Conditioning, Emollient) |
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Palmitic Acid
(Fragrance, Opacifying, Sufactant, Surfactant Emulsifying Agentsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Palmitic Acid., Emollient) |
Bad for Oily Skin
Fungal Acne Trigger
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Hydroxyacetophenone
(Antioxidant) |
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Capryloyl Glycine
(Cleansing, Hair Conditioning, Surfactant) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Vitreoscilla Ferment
(Skin Conditioning) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding) |
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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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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
The concentrations these actives are typically effective at in research — not a measurement of this product.
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide
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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