The Deep Purifying Mask
The La Mer The Deep Purifying Mask is a wash-off mask. Our analysis of its 79 ingredients (54 low-risk) rates it Excellent (94/100). 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 Mer The Deep Purifying Mask is a wash-off mask. Our analysis of its 79 ingredients (54 low-risk) rates it Excellent (94/100). 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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Bentonite
(Absorbent, Bulking Agent, Emulsion Stabilising, Opacifying, Suspending Agent Nonsurfactant, Viscosity Increasing Agent, Viscosity Controlling) |
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Kaolin
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Skin Protecting, Slip Modifier) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Perlite
(Abrasive, Absorbent, Bulking Agent, Suspending Agent Nonsurfactant) |
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Hamamelis Virginiana Water
(Astringent, Hair Conditioning, Skin Conditioning, Soothing) |
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Mica
(Cosmetic Colorant, Opacifying) |
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Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient) |
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Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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Faex Extract
(Skin Conditioning) |
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PEG-100 Stearate
(Surfactant) |
Fungal Acne Trigger
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Charcoal Powder
(Abrasive, Absorbent, Colorant, Opacifying, Cosmetic Colorant) |
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Sesamum Indicum Seed Oil
(Fragrance, Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient) |
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Medicago Sativa Seed Powder
(Skin Conditioning) |
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Helianthus Annuus Seedcake
(Abrasive, Bulking) |
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Prunus Amygdalus Dulcis Seed Meal
(Abrasive) |
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Eucalyptus Globulus Leaf Oil
(Perfuming, Skin Conditioning) |
Bad for Sensitive Skin
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Sodium Gluconate
(Chelating Agent, Skin Conditioning) |
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Copper Gluconate
(Skin Conditioning, Skin Protecting) |
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Calcium Gluconate
(Skin Conditioning, Humectant, Oral Care Agent) |
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Magnesium Gluconate
(Skin Conditioning) |
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Zinc Gluconate
(Cosmetic Biocide, Skin Conditioning, Deodorant) |
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Tocopheryl Succinate
(Antioxidant) |
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Niacin
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Smoothing) |
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Sesamum Indicum Seed Powder
(Skin Conditioning) |
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CI 77220
(Colorant) |
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Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent) |
Good for Oily Skin
Bad for Sensitive Skin
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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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Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent) |
Bad for Sensitive Skin
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Phytic Acid
(Chelating Agent, Oral Care Agent) |
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Tourmaline
(Viscosity Increasing Agent, Viscosity Controlling) |
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Malachite
(Skin Conditioning) |
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Pearl Powder
(Not Reported) |
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Thermus Thermophillus Ferment
(Skin Conditioning) |
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Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber) |
Good for Oily Skin
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Citrus Aurantifolia Peel Extract
(Cleansing, Hair Conditioning, Perfuming, Skin Conditioning, Tonic) |
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Sucrose
(Flavoring Agent, Humectant, Skin Conditioning, Soothing) |
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Spirulina Platensis Powder
(Skin Protecting, Sunscreen Agent, Uv Absorber) |
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
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citrus grandis peel oil
(Fragrance, Perfuming, Skin Conditioning) |
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Sea Salt
(Abrasive, Humectant, Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling) |
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Pelargonium Graveolens Flower Oil
(Masking) |
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Trehalose
(Flavoring Agent, Humectant, Moisturising) |
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Dicetyldimonium Chloride
(Antistatic Agent, Emulsifying, Hair Conditioning, Surfactant) |
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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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Bis-PEG-18 Methyl Ether Dimethyl Silane
(Humectant, Foam Boosting, Hydrotrope, Emollient, Hair Conditioning, Skin Conditioning) |
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MENTHA VIRIDIS LEAF OIL
(Astringent, Fragrance, Skin Conditioning) |
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Camelina Sativa Seed Oil
(Skin Conditioning) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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PEG-8
(Humectant, Solvent) |
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Sodium Polyaspartate
(Hair Conditioning, Humectant, Skin Conditioning) |
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Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient) |
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Sodium Methyl Cocoyl Taurate
(Cleansing, Foaming, Surfactant) |
Fungal Acne Trigger
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Methyldihydrojasmonate
(Masking) |
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Propylene Glycol Laurate
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
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Phosphatidylcholine
(Skin Conditioning, Emulsifying, Surfactant) |
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PEG-150 Distearate
(Emulsifying, Surfactant, Viscosity Controlling) |
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Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant) |
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Propylene Glycol Stearate
(Fragrance, Skin Conditioning, Emollient, Emulsifying, Surfactant) |
Fungal Acne Trigger
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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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Jojoba Wax PEG-120 Esters
(Surfactant) |
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Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
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Sorbitan Laurate
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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Sodium Magnesium Silicate
(Binding Agent, Bulking Agent, Binding, Viscosity Controlling) |
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Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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PARFUM
(Fragrance, Perfuming) |
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Citronellol
(Fragrance, Masking) |
Allergens
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Geraniol
(Fragrance, Masking, Tonic) |
Allergens
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Potassium Sorbate
(Fragrance, Preservative) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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CI 77288
(Colorant) |
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CI 77289
(Colorant) |
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CI 77499
(Colorant, Cosmetic Colorant) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →
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
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
Glycolic Acid, Lactic 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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