The Essential Tonic
The La Mer The Essential Tonic is a toner. Our analysis of its 63 ingredients (48 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The La Mer The Essential Tonic is a toner. Our analysis of its 63 ingredients (48 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry 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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Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
|
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Algae Extract
(Fragrance, Humectant, Oral Care Agent, Skin Conditioning, Emollient) |
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Methyl Gluceth-20
(Humectant, Moisturising) |
|
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Glycereth-26
(Humectant, Viscosity Decreasing Agent, Solvent, Viscosity Controlling) |
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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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Aspergillus Ferment
(Skin Conditioning) |
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Lactobacillus Ferment
(Skin Conditioning) |
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Faex Extract
(Skin Conditioning) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
|
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Sodium Hyaluronate
(Skin Conditioning, Humectant) |
Good for Dry Skin
|
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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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Caffeine
(Fragrance, Skin Conditioning, Masking) |
|
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Sodium PCA
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning) |
Good for Dry Skin
|
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Trehalose
(Flavoring Agent, Humectant, Moisturising) |
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Ecklonia Cava Extract
(Skin Conditioning) |
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Acetyl Dipeptide-1 Cetyl Ester
(Hair Conditioning, Skin Conditioning) |
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Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant) |
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Citrus Aurantifolia Peel Extract
(Cleansing, Hair Conditioning, Perfuming, Skin Conditioning, Tonic) |
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Laminaria Saccharina Extract
(Skin Protecting) |
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Laminaria Digitata Extract
(Skin Protecting) |
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Cladosiphon Okamuranus Extract
(Skin Conditioning) |
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Homarine HCl
(Skin Conditioning) |
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Acetyl Hexapeptide-8
(Humectant, Skin Conditioning) |
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Urea
(Buffering Agent, Humectant, Antistatic Agent, Skin Conditioning) |
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Erythritol
(Humectant, Moisturising) |
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Sucrose
(Flavoring Agent, Humectant, Skin Conditioning, Soothing) |
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PEG-8
(Humectant, Solvent) |
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Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling) |
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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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Dextrin
(Absorbent, Binding Agent, Bulking Agent, Viscosity Increasing Agent, Binding, Viscosity Controlling) |
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Polyquaternium-51
(Film Forming, Humectant, Skin Conditioning) |
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PEG-7 Glyceryl Cocoate
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
Fungal Acne Trigger
|
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Laureth-3
(Emulsifying, Surfactant) |
|
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Propanediol
(Solvent, Viscosity Decreasing Agent, 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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Triacetin
(Cosmetic Biocide, Fragrance, Plasticizer, Solvent, Antimicrobial, Film Forming, Masking) |
|
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PARFUM
(Fragrance, Perfuming) |
|
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
|
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
|
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Magnesium Ascorbyl Phosphate
(Antioxidant) |
|
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
|
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
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Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative) |
|
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
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Potassium Sorbate
(Fragrance, Preservative) |
|
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CI 14700
(Cosmetic Colorant) |
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CI 19140
(Colorant, Cosmetic Colorant) |
|
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CI 17200
(Cosmetic Colorant) |
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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.
L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.
Magnesium Ascorbyl Phosphate
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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