4-in-1 Correcting Primer Redness Reducer
The Pur Cosmetics 4-in-1 Correcting Primer Redness Reducer is a misc. Our analysis of its 17 ingredients (10 low-risk) rates it Excellent (89/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.
The Pur Cosmetics 4-in-1 Correcting Primer Redness Reducer is a misc. Our analysis of its 17 ingredients (10 low-risk) rates it Excellent (89/100). 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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Cyclopentasiloxane
(Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
Silicone
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Dimethicone Crosspolymer
(Emulsion Stabilising, Hair Fixing, Suspending Agent Nonsurfactant, Viscosity Increasingagent Nonaqueous, Viscosity Controlling) |
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Aluminum Starch Octenylsuccinate
(Absorbent, Anticaking Agent, Viscosity Increasing Agent, Viscosity Controlling) |
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Isohexadecane
(Skin Conditioning, Emollient, Solvent) |
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Isononyl Isononanoate
(Skin Conditioning, Emollient, Antistatic Agent) |
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Ceramide AP
(Hair Conditioning, Skin Conditioning) |
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Retinol
(Skin Conditioning) |
Bad for Sensitive Skin
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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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Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling) |
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Sodium Starch Octenylsuccinate
(Absorbent, Emulsion Stabilising, Viscosity Increasing Agent, Viscosity Controlling) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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Magnesium Myristate
(Anticaking Agent, Slip Modifier, Viscosity Increasing Agent, Opacifying, Viscosity Controlling) |
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Phenyl Trimethicone
(Antifoaming Agent, Hair Conditioning, Skin Conditioning) |
Silicone
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Silica Silylate
(Antifoaming Agent, Bulking Agent, Skin Conditioning, Emollient, Suspending Agent Nonsurfactant, Anticaking Agent, Emulsion Stabilising, Viscosity Controlling) |
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CI 77891
(Colorant) |
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Iron Oxides
(Colorant, Cosmetic Colorant) |
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CI 77289
(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
Contains ingredients some choose to avoid or double-check while pregnant or nursing.
Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.
This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.
The concentrations these actives are typically effective at in research — not a measurement of this product.
Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.
Retinol
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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