Kiehl's Dermatologist Solutions Nightly Refining Micro-Peel Concentrate
The Kiehl's Dermatologist Solutions Nightly Refining Micro-Peel Concentrate is a serums, essence, ampoule. Our analysis of its 26 ingredients (24 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
The Kiehl's Dermatologist Solutions Nightly Refining Micro-Peel Concentrate is a serums, essence, ampoule. Our analysis of its 26 ingredients (24 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry 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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Alcohol Denat.
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
|
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Hydroxyethylpiperazine Ethane Sulfonic Acid
(Buffering Agent) |
|
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Hydroxyethyl Urea
(Hair Conditioning, Humectant, Skin Conditioning) |
|
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Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
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Vaccinium Myrtillus Fruit Extract
(Skin Conditioning) |
|
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Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
|
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Chenopodium Quinoa Seed Extract
(Skin Conditioning) |
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Saccharum Officinarum (Sugar Cane) Extract
(Skin Conditioning, Moisturising) |
|
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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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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Phytic Acid
(Chelating Agent, Oral Care Agent) |
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Calcium Carrageenan
(Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Viscosity Controlling) |
|
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
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Citrus Aurantium Dulcis (Orange) Fruit Water
(Flavoring Agent, Fragrance, Masking) |
Bad for Sensitive Skin
|
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Citrus Limon (Lemon) Fruit Extract |
Good for Oily Skin
Bad for Sensitive Skin
|
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
|
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Acer Saccharum (Sugar Maple) Extract
(Keratolytic) |
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Hydrolyzed Opuntia Ficus-Indica Flower Extract
(Abrasive, Skin Protecting) |
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Potassium Sorbate
(Fragrance, Preservative) |
|
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Aloe Barbadensis Leaf Juice Powder
(Skin Conditioning) |
Good for Sensitive Skin
|
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Adenosine
(Skin Conditioning) |
|
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
|
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Citrus Aurantium Dulcis (Orange) Juice
(Skin Conditioning) |
Bad for Sensitive Skin
|
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
|
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Ascorbyl Glucoside
(Antioxidant) |
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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.
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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