Kiehl's Facial Fuel
The Kiehl's Facial Fuel is a misc. Our analysis of its 41 ingredients (30 low-risk) rates it Excellent (86/100). 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 Kiehl's Facial Fuel is a misc. Our analysis of its 41 ingredients (30 low-risk) rates it Excellent (86/100). 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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Cyclohexasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
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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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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
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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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 (Corn) Germ Oil
(Emollient, Skin Conditioning) |
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Triethanolamine
(Fragrance, Ph Adjuster, Emulsifying, Surfactant, Buffering Agent, Masking) |
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Ascorbyl Glucoside
(Antioxidant) |
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Glyceryl Linoleate
(Skin Conditioning, Emollient, Emulsifying, Surfactant) |
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Polyperfluoromethylisopropyl Ether
(Skin Conditioning) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Polyacrylamide
(Binding Agent, Film Forming, Hair Fixing, Antistatic Agent, Binding) |
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Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising) |
Silicone
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Glyceryl Oleate
(Fragrance, Skin Conditioning, Emollient, Emulsifying, Surfactant, Perfuming) |
Fungal Acne Trigger
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Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling) |
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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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C13-14 Isoparaffin
(Emollient, Solvent) |
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Fragrance
(Deodorant, Masking, Perfuming) |
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Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling) |
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Methylparaben
(Fragrance, Preservative) |
Paraben
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Maleated Soybean Oil
(Skin Conditioning, Emollient) |
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Caffeine
(Fragrance, Skin Conditioning, Masking) |
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Tocopherol (Vitamin E) |
Good for Dry Skin
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Hydrogenated Lecithin
(Skin Conditioning, Emulsifying, Surfactant, Suspending Agent Nonsurfactant) |
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Castanea Sativa (Chestnut) Seed Extract | |
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Benzophenone-4
(Uv Absorber, Uv Filter) |
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Cholesterol
(Emulsion Stabilising, Skin Conditioning, Viscosity Increasing Agent, Emollient, Emulsifying, Stabilising, Viscosity Controlling) |
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Menthol
(Denaturant, External Analgesic, Flavoring Agent, Fragrance, Oral Health Caredrug, Masking, Refreshing, Soothing) |
Good for Oily Skin
Bad for Sensitive Skin
Bad for Dry Skin
|
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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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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
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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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Hydrolyzed Soy Protein
(Antistatic Agent, Hair Conditioning, Humectant, Skin Conditioning) |
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Potassium Cetyl Phosphate
(Emulsifying, Surfactant) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Butylparaben
(Fragrance, Preservative, Masking) |
Paraben
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Ethylparaben
(Fragrance, Preservative) |
Paraben
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Citrus Sinensis (Orange) Fruit Extract
(Antioxidant, Skin Conditioning) |
Bad for Sensitive Skin
|
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Citrus Limon (Lemon) Peel Extract |
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
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.
Ascorbyl Glucoside
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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