The Deep Purifying Mask

La Mer

Where to buy Possibly in stock

About this product

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.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Wash-Off Mask
Ingredients
79
Low-risk
54
Fragrance
Contains fragrance
Origin
United States

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 17/23
Good for dry skin
Algae Extract Sodium Polyaspartate Sucrose Sea Salt Caprylyl Glycol Calcium Gluconate Butylene Glycol Sodium Hyaluronate Glycerin Trehalose Propylene Glycol Laurate Propylene Glycol Stearate Camellia Sinensis Leaf Extract Bis-PEG-18 Methyl Ether Dimethyl Silane PEG-8 Lactic Acid Lecithin
Caution for dry skin
Sodium Methyl Cocoyl Taurate Sorbitan Laurate Charcoal Powder Xanthan Gum Kaolin Glycerin Salicylic Acid Perlite Phosphatidylcholine Propylene Glycol Laurate Propylene Glycol Stearate Hexylene Glycol Dicetyldimonium Chloride Bentonite Alcohol Camellia Sinensis Leaf Extract Polysorbate 20 PEG-100 Stearate PEG-150 Distearate Jojoba Wax PEG-120 Esters Alcohol Denat. Silica Lecithin
Oily/Acne-Prone Skin 4/0
Good for oily/acne-prone skin
Salicylic Acid Alcohol Camellia Sinensis Leaf Extract Alcohol Denat.
Sensitive Skin 8/21
Good for sensitive skin
Sucrose Spirulina Platensis Powder Kaolin Glycerin Copper Gluconate Camellia Sinensis Leaf Extract Tocopheryl Acetate Tocopheryl Succinate
Caution for sensitive skin
Algae Extract Pelargonium Graveolens Flower Oil Sea Salt Butylene Glycol Glycerin Salicylic Acid Propylene Glycol Stearate Hexylene Glycol Citric Acid Alcohol Eucalyptus Globulus Leaf Oil Camellia Sinensis Leaf Extract Potassium Sorbate Lactic Acid Alcohol Denat. Phenoxyethanol Linalool Citronellol Limonene Geraniol Methyldihydrojasmonate

Ingredients list

79 total
Lower hazard (1) Higher hazard (7)
All79 Skin Conditioning51 Fragrance17 Humectant15 Surfactant12 Masking12 Viscosity Controlling11 Hair Conditioning10 Emulsifying9
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
2
A
Bentonite
(Absorbent, Bulking Agent, Emulsion Stabilising, Opacifying, Suspending Agent Nonsurfactant, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Kaolin
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Skin Protecting, Slip Modifier)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Perlite
(Abrasive, Absorbent, Bulking Agent, Suspending Agent Nonsurfactant)
Hamamelis Virginiana Water
(Astringent, Hair Conditioning, Skin Conditioning, Soothing)
2
Mica
(Cosmetic Colorant, Opacifying)
1
Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient)
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
Faex Extract
(Skin Conditioning)
3
A
PEG-100 Stearate
(Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Charcoal Powder
(Abrasive, Absorbent, Colorant, Opacifying, Cosmetic Colorant)
Sesamum Indicum Seed Oil
(Fragrance, Hair Conditioning, Skin Conditioning, Skin Conditioning Emollient)
Medicago Sativa Seed Powder
(Skin Conditioning)
Helianthus Annuus Seedcake
(Abrasive, Bulking)
Prunus Amygdalus Dulcis Seed Meal
(Abrasive)
2
Eucalyptus Globulus Leaf Oil
(Perfuming, Skin Conditioning)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Sodium Gluconate
(Chelating Agent, Skin Conditioning)
2
Copper Gluconate
(Skin Conditioning, Skin Protecting)
1
A
Calcium Gluconate
(Skin Conditioning, Humectant, Oral Care Agent)
1
Magnesium Gluconate
(Skin Conditioning)
3
Zinc Gluconate
(Cosmetic Biocide, Skin Conditioning, Deodorant)
A
Tocopheryl Succinate
(Antioxidant)
1
A
Niacin
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Smoothing)
Sesamum Indicum Seed Powder
(Skin Conditioning)
CI 77220
(Colorant)
4
B
Glycolic Acid
(Exfoliant, Ph Adjuster, Buffering Agent)
Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
4
B
Salicylic Acid
(Antiacne Agent, Antidandruff Agent, Corn/Callus/Wart Remover, Denaturant, Exfoliant, Fragrance, Hair Conditioning, Skin Conditioning, Keratolytic, Masking, Preservative)
Good for Oily Skin
Good for Oily Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
4
B
Lactic Acid
(Exfoliant, Fragrance, Humectant, Ph Adjuster, Skin Conditioning Agent Humectant, Skin Conditioning, Buffering Agent)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Phytic Acid
(Chelating Agent, Oral Care Agent)
1
Tourmaline
(Viscosity Increasing Agent, Viscosity Controlling)
1
Malachite
(Skin Conditioning)
1
Pearl Powder
(Not Reported)
1
Thermus Thermophillus Ferment
(Skin Conditioning)
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
Citrus Aurantifolia Peel Extract
(Cleansing, Hair Conditioning, Perfuming, Skin Conditioning, Tonic)
1
A
Sucrose
(Flavoring Agent, Humectant, Skin Conditioning, Soothing)
1
Spirulina Platensis Powder
(Skin Protecting, Sunscreen Agent, Uv Absorber)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
citrus grandis peel oil
(Fragrance, Perfuming, Skin Conditioning)
1
Sea Salt
(Abrasive, Humectant, Bulking Agent, Masking, Oral Care Agent, Viscosity Controlling)
1
Pelargonium Graveolens Flower Oil
(Masking)
1
A
Trehalose
(Flavoring Agent, Humectant, Moisturising)
2
Dicetyldimonium Chloride
(Antistatic Agent, Emulsifying, Hair Conditioning, Surfactant)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
3
Bis-PEG-18 Methyl Ether Dimethyl Silane
(Humectant, Foam Boosting, Hydrotrope, Emollient, Hair Conditioning, Skin Conditioning)
MENTHA VIRIDIS LEAF OIL
(Astringent, Fragrance, Skin Conditioning)
1
A
Camelina Sativa Seed Oil
(Skin Conditioning)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
3
A
PEG-8
(Humectant, Solvent)
1
Sodium Polyaspartate
(Hair Conditioning, Humectant, Skin Conditioning)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
2
3
Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Antistatic Agent, Emollient)
1
B
Sodium Methyl Cocoyl Taurate
(Cleansing, Foaming, Surfactant)
Fungal Acne
Fungal Acne Trigger
Methyldihydrojasmonate
(Masking)
1
B
Propylene Glycol Laurate
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
1
A
Phosphatidylcholine
(Skin Conditioning, Emulsifying, Surfactant)
3
B
PEG-150 Distearate
(Emulsifying, Surfactant, Viscosity Controlling)
1
A
Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant)
1
B
Propylene Glycol Stearate
(Fragrance, Skin Conditioning, Emollient, Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
3
Jojoba Wax PEG-120 Esters
(Surfactant)
2
Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Sorbitan Laurate
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
A
Sodium Magnesium Silicate
(Binding Agent, Bulking Agent, Binding, Viscosity Controlling)
4
Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
PARFUM
(Fragrance, Perfuming)
5
Citronellol
(Fragrance, Masking)
Allergens
Allergens
7
Geraniol
(Fragrance, Masking, Tonic)
Allergens
Allergens
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
3
A
Potassium Sorbate
(Fragrance, Preservative)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
CI 77288
(Colorant)
CI 77289
(Colorant)
2
CI 77499
(Colorant, Cosmetic Colorant)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Exfoliators
Removes dead skin cells to smoothe texture.
Antioxidants
Shields skin from free radical damage.
AHA
Exfoliates skin for a brighter complexion.
BHA
Unclogs pores and reduces excess oil.
Vitamin E
Protects skin and soothes irritation.
Hyaluronic Acid
Hydrates by attracting and holding water.
Zinc
Helps control oil and supports healing.
Show all 7 key ingredients

Benefits

Good For Oily SkinBalances oil and helps reduce shine.
Reduces Large PoresMinimizes the look of enlarged pores.
HydratingBoosts hydration and relieves dry, tight skin.
Acne FightingFights acne and helps prevent breakouts.
Barrier RepairStrengthen and restore your skin's natural barrier.
Anti-AgingSoftens lines and helps skin look youthful.
BrighteningRestores radiance to dull, tired skin.
Scar HealingImproves the look of marks and scars.

Concerns

Contains paraben
Contains eu allergen
Not fungal acne (malassezia) safe
Geraniol — higher EWG
May not suit dry skin
May not suit sensitive skin

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 →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Bentonite
Absorbent, Bulking agent
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A AbsorbentBulking agentEmulsion stabilisingOpacifyingSuspending agent -nonsurfactantViscosity increasing agentViscosity controlling
Kaolin
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingSkin protectingSlip modifier
Perlite
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1 AbrasiveAbsorbentBulking agentSuspending agent - nonsurfactant
Hamamelis Virginiana Water
Astringent, Hair conditioning
Limited public safety data.Read moreShow less
EWG N/A AstringentHair conditioningSkin conditioningSoothing
Mica
Cosmetic colorant, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 2 Cosmetic colorantOpacifying
Algae Extract
Fragrance, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceHumectantOral care agentSkin conditioningEmollient
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
Faex Extract
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Charcoal Powder
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1 AbrasiveAbsorbentColorantOpacifyingCosmetic colorant
Sesamum Indicum Seed Oil
Fragrance, Hair conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceHair conditioningSkin conditioningSkin conditioning emollient
Medicago Sativa Seed Powder
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Helianthus Annuus Seedcake
Abrasive, Bulking
Limited public safety data.Read moreShow less
EWG N/A AbrasiveBulking
Prunus Amygdalus Dulcis Seed Meal
Abrasive
Limited public safety data.Read moreShow less
EWG N/A Abrasive
Sodium Gluconate
Chelating agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Chelating agentSkin conditioning
+ 42 more — see the full ingredients list above
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
PEG-100 Stearate
Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Surfactant Fungal-acne trigger
Eucalyptus Globulus Leaf Oil
Perfuming, Skin conditioning
Strong essential oil which can irritate skinRead moreShow less
EWG 2 PerfumingSkin conditioning Bad for Sensitive Skin
Glycolic Acid
Exfoliant, Ph adjuster
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantPh adjusterBuffering agent Good for Oily SkinBad for Sensitive Skin
Salicylic Acid
Antiacne agent, Antidandruff agent
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B Antiacne agentAntidandruff agentCorn/callus/wart removerDenaturantExfoliantFragranceHair conditioningSkin conditioningKeratolyticMaskingPreservative Good for Oily SkinBad for Sensitive Skin
Lactic Acid
Exfoliant, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 4 CIR B ExfoliantFragranceHumectantPh adjusterSkin-conditioning agent -humectantSkin conditioningBuffering agent Bad for Sensitive Skin
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Sodium Methyl Cocoyl Taurate
Cleansing, Foaming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B CleansingFoamingSurfactant Fungal-acne trigger
Propylene Glycol Stearate
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B FragranceSkin conditioningEmollientEmulsifyingSurfactant Fungal-acne trigger
Alcohol
Antifoaming agent, Antimicrobial
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 2 Antifoaming agentAntimicrobialAstringentMaskingSolventViscosity controlling Bad for Dry SkinBad for Sensitive Skin
Sorbitan Laurate
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmulsifyingSurfactant Fungal-acne trigger
+ 7 more — see the full ingredients list above

How to use

How to use

  • 1 Where it fits: Use as the first step, on clean hands, before the rest of your routine.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Use with caution
BHA (salicylic) (Salicylic Acid)

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.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

BHA (salicylic) 0.5–2%

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

AHA (acid exfoliant) 5–10% (OTC)

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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