PS... Prep + Perfect Vitamin Enriched Moisturising Primer
The Primark PS... Prep + Perfect Vitamin Enriched Moisturising Primer is a misc. Our analysis of its 28 ingredients (20 low-risk) rates it Excellent (92/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Primark PS... Prep + Perfect Vitamin Enriched Moisturising Primer is a misc. Our analysis of its 28 ingredients (20 low-risk) rates it Excellent (92/100). Based on its ingredients, it looks well-suited to 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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Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling) |
Good for Dry Skin
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Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling) |
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Octyldodecanol
(Fragrance, Skin Conditioning, Emollient, Perfuming, Solvent) |
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Pentaerythrityl Distearate
(Skin Conditioning, Emollient, Viscosity Increasing Agent, Emulsifying) |
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C12-15 Alkyl Benzoate
(Skin Conditioning, Emollient, Antimicrobial) |
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Glyceryl Stearate SE
(Emulsifying, Surfactant) |
Bad for Oily Skin
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Glyceryl Stearate
(Emollient, Emulsifying) |
Fungal Acne Trigger
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PEG-100 Stearate
(Surfactant) |
Fungal Acne Trigger
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Avena Sativa Kernel Oil
(Skin Conditioning) |
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Bis-Diglyceryl Polyacyladipate-2
(Skin Conditioning, Emollient) |
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Niacinamide
(Hair Conditioning, Skin Conditioning, Smoothing) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling) |
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Chlorphenesin
(Cosmetic Biocide, Antimicrobial, Preservative) |
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PARFUM
(Fragrance, Perfuming) |
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Sodium Stearoyl Glutamate
(Hair Conditioning, Skin Conditioning, Surfactant Cleansingagent, Emulsifying) |
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
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3-O-ETHYL ASCORBIC ACID
(Skin Conditioning) |
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Panthenol
(Antistatic Agent, Hair Conditioning, Skin Conditioning) |
Good for Dry Skin
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Sodium Hydroxide
(Denaturant, Ph Adjuster, Buffering Agent) |
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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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Trisodium Ethylenediamine Disuccinate
(Chelating Agent) |
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
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Citronellol
(Fragrance, Masking) |
Allergens
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Geraniol
(Fragrance, Masking, Tonic) |
Allergens
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CI 19140
(Colorant, Cosmetic Colorant) |
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CI 14700
(Cosmetic Colorant) |
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.
3-O-ETHYL ASCORBIC ACID
Most research uses 2–5%; some formulas go to 10%. Very high levels can cause flushing in sensitive skin.
Niacinamide
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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