Overnight Scalp Barrier Serum
The Philip Kingsley Overnight Scalp Barrier Serum is a misc. Our analysis of its 25 ingredients (18 low-risk) rates it Excellent (95/100).
The Philip Kingsley Overnight Scalp Barrier Serum is a misc. Our analysis of its 25 ingredients (18 low-risk) rates it Excellent (95/100).
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
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Aloe Barbadensis Leaf Juice
(Skin Conditioning) |
Good for Sensitive Skin
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Water
(Solvent) |
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Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling) |
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Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling) |
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Polysorbate 20
(Emulsifying, Surfactant) |
Fungal Acne Trigger
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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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Hamamelis Virginiana Water
(Astringent, Hair Conditioning, Skin Conditioning, Soothing) |
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Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking) |
Allergens
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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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Hexylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Emulsifying, Perfuming, Skin Conditioning, Surfactant) |
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Saccharide Isomerate
(Humectant) |
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Capryloyl Glycine
(Cleansing, Hair Conditioning, Surfactant) |
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Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling) |
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Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
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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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Menthyl Lactate
(Flavoring Agent, Fragrance, Masking, Refreshing) |
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Ethylhexylglycerin
(Deodorant, Skin Conditioning) |
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Piroctone Olamine
(Cosmetic Biocide, Preservative) |
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Sarcosine
(Skin Conditioning) |
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Xylitylglucoside
(Humectant, Skin Conditioning) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Avena Sativa Kernel Oil
(Skin Conditioning) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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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.
OTC leave-on AHAs are usually 5–10%. The effect also depends on pH and free-acid value, not the percentage alone.
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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